# $Id$
# This file is part of OpenTTD.
# OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
# OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see .
log() {
if [ $1 = "1" ]; then
shift
echo "$@"
else
shift
fi
echo "$@" >> $config_log
}
set_default() {
ignore_extra_parameters="0"
# We set all kinds of defaults for params. Later on the user can override
# most of them; but if they don't, this default is used.
build=""
host=""
cc_build=""
cc_host=""
cxx_build=""
cxx_host=""
windres=""
strip=""
lipo=""
awk="awk"
pkg_config="pkg-config"
os="DETECT"
cpu_type="DETECT"
config_log="config.log"
prefix_dir="/usr/local"
binary_dir="games"
data_dir="share/games/openttd"
doc_dir="1"
icon_dir="share/pixmaps"
icon_theme_dir="1"
personal_dir="1"
shared_dir="1"
install_dir="/"
man_dir="1"
menu_dir="1"
menu_group="Game;"
menu_name="OpenTTD"
binary_name="openttd"
enable_debug="0"
enable_desync_debug="0"
enable_profiling="0"
enable_lto="0"
enable_dedicated="0"
enable_static="1"
enable_translator="0"
enable_unicode="1"
enable_console="1";
enable_assert="1"
enable_strip="0"
enable_universal="0"
enable_osx_g5="0"
enable_cocoa_quartz="1"
enable_cocoa_quickdraw="1"
with_osx_sysroot="1"
with_application_bundle="1"
with_menu_entry="1"
with_allegro="1"
with_sdl="1"
with_cocoa="1"
with_zlib="1"
with_lzma="1"
with_lzo2="1"
with_xdg_basedir="1"
with_png="1"
enable_builtin_depend="1"
with_makedepend="0"
with_direct_music="1"
with_xaudio2="1"
with_sort="1"
with_iconv="1"
with_midi=""
with_midi_arg=""
with_fluidsynth="1"
with_freetype="1"
with_fontconfig="1"
with_icu_layout="1"
with_icu_sort="1"
static_icu="0"
with_uniscribe="1"
with_threads="1"
with_distcc="1"
with_ccache="1"
with_nforenum="1"
with_grfcodec="1"
with_sse="1"
with_libbfd="1"
with_bfd_extra_debug="1"
with_self_gdb_debug="1"
with_self_lldb_debug="1"
save_params_array="
build
host
cc_build
cc_host
cxx_build
cxx_host
windres
strip
lipo
awk
pkg_config
os
cpu_type
config_log
prefix_dir
binary_dir
data_dir
doc_dir
icon_dir
icon_theme_dir
man_dir
menu_dir
personal_dir
shared_dir
install_dir
menu_group
menu_name
binary_name
enable_debug
enable_desync_debug
enable_profiling
enable_lto
enable_dedicated
enable_static
enable_translator
enable_unicode
enable_console
enable_assert
enable_strip
enable_universal
enable_osx_g5
enable_cocoa_quartz
enable_cocoa_quickdraw
with_osx_sysroot
with_application_bundle
with_allegro
with_sdl
with_cocoa
with_zlib
with_lzma
with_lzo2
with_xdg_basedir
with_png
enable_builtin_depend
with_makedepend
with_direct_music
with_xaudio2
with_sort
with_iconv
with_midi
with_midi_arg
with_fluidsynth
with_freetype
with_fontconfig
with_icu_layout
with_icu_sort
static_icu
with_uniscribe
with_threads
with_distcc
with_ccache
with_grfcodec
with_nforenum
with_sse
with_libbfd
with_bfd_extra_debug
with_self_gdb_debug
with_self_lldb_debug
CC CXX CFLAGS CXXFLAGS LDFLAGS CFLAGS_BUILD CXXFLAGS_BUILD LDFLAGS_BUILD PKG_CONFIG_PATH PKG_CONFIG_LIBDIR"
}
detect_params() {
# Walk over all params from the user and override any default settings if
# needed. This also handles any invalid option.
for p in "$@"; do
if [ -n "$prev_p" ]; then
eval "$prev_p=\$p"
prev_p=
continue
fi
optarg=`expr "x$p" : 'x[^=]*=\(.*\)'`
case "$p" in
--help | -h | -\?) showhelp; exit 0;;
--config-log) prev_p="config_log";;
--config-log=*) config_log="$optarg";;
--build) prev_p="build";;
--build=*) build="$optarg";;
--host) prev_p="host";;
--host=*) host="$optarg";;
--os) prev_p="os";;
--os=*) os="$optarg";;
--cpu-type) prev_p="cpu_type";;
--cpu-type=*) cpu_type="$optarg";;
--cc-build) prev_p="cc_build";;
--cc-build=*) cc_build="$optarg";;
--cc-host) prev_p="cc_host";;
--cc-host=*) cc_host="$optarg";;
--cxx-build) prev_p="cxx_build";;
--cxx-build=*) cxx_build="$optarg";;
--cxx-host) prev_p="cxx_host";;
--cxx-host=*) cxx_host="$optarg";;
--windres) prev_p="windres";;
--windres=*) windres="$optarg";;
--awk) prev_p="awk";;
--awk=*) awk="$optarg";;
--pkg-config) prev_p="pkg_config";;
--pkg-config=*) pkg_config="$optarg";;
--strip) prev_p="strip";;
--strip=*) strip="$optarg";;
--lipo) prev_p="lipo";;
--lipo=*) lipo="$optarg";;
# Alias --prefix with --prefix-dir, for compatibility with GNU autotools
--prefix-dir | --prefix) prev_p="prefix_dir";;
--prefix-dir=* | --prefix=*) prefix_dir="$optarg";;
--binary-dir) prev_p="binary_dir";;
--binary-dir=*) binary_dir="$optarg";;
--data-dir) prev_p="data_dir";;
--data-dir=*) data_dir="$optarg";;
--doc-dir) prev_p="doc_dir";;
--doc-dir=*) doc_dir="$optarg";;
--icon-dir) prev_p="icon_dir";;
--icon-dir=*) icon_dir="$optarg";;
--icon-theme-dir) prev_p="icon_theme_dir";;
--icon-theme-dir=*) icon_theme_dir="$optarg";;
--without-icon-theme) icon_theme_dir="";;
--menu-dir) prev_p="menu_dir";;
--menu-dir=*) menu_dir="$optarg";;
--without-menu-entry) menu_dir="";;
--menu-name) prev_p="menu_name";;
--menu-name=*) menu_name="$optarg";;
--binary-name) prev_p="binary_name";;
--binary-name=*) binary_name="$optarg";;
--man-dir) prev_p="man_dir";;
--man-dir=*) man_dir="$optarg";;
--personal-dir) prev_p="personal_dir";;
--personal-dir=*) personal_dir="$optarg";;
--without-personal-dir) personal_dir="";;
--shared-dir) prev_p="shared_dir";;
--shared-dir=*) shared_dir="$optarg";;
--without-shared-dir) shared_dir="";;
--install-dir) prev_p="install_dir";;
--install-dir=*) install_dir="$optarg";;
--menu-group) prev_p="menu_group";;
--menu-group=*) menu_group="$optarg";;
--enable-debug) enable_debug="1";;
--enable-debug=*) enable_debug="$optarg";;
--enable-desync-debug) enable_desync_debug="1";;
--enable-desync-debug=*) enable_desync_debug="$optarg";;
--enable-profiling) enable_profiling="1";;
--enable-profiling=*) enable_profiling="$optarg";;
--enable-lto) enable_lto="1";;
--enable-lto=*) enable_lto="$optarg";;
--enable-ipo) enable_lto="1";;
--enable-ipo=*) enable_lto="$optarg";;
--enable-dedicated) enable_dedicated="1";;
--enable-dedicated=*) enable_dedicated="$optarg";;
--disable-static) enable_static="0";;
--enable-static) enable_static="2";;
--enable-static=*) enable_static="$optarg";;
--disable-translator) enable_translator="0";;
--enable-translator) enable_translator="2";;
--enable-translator=*) enable_translator="$optarg";;
--disable-assert) enable_assert="0";;
--enable-assert) enable_assert="2";;
--enable-assert=*) enable_assert="$optarg";;
--disable-strip) enable_strip="0";;
--enable-strip) enable_strip="2";;
--enable-strip=*) enable_strip="$optarg";;
--disable-universal) enable_universal="0";;
--enable-universal) enable_universal="i386 ppc";;
--enable-universal=*) enable_universal="$optarg";;
--disable-osx-g5) enable_osx_g5="0";;
--enable-osx-g5) enable_osx_g5="2";;
--enable-osx-g5=*) enable_osx_g5="$optarg";;
--disable-unicode) enable_unicode="0";;
--enable-unicode) enable_unicode="2";;
--enable-unicode=*) enable_unicode="$optarg";;
--disable-console) enable_console="0";;
--enable-console) enable_console="2";;
--enable-console=*) enable_console="$optarg";;
--disable-cocoa-quartz) enable_cocoa_quartz="0";;
--enable-cocoa-quartz) enable_cocoa_quartz="2";;
--enable-cocoa-quartz=*) enable_cocoa_quartz="$optarg";;
--disable-cocoa-quickdraw) enable_cocoa_quickdraw="0";;
--enable-cocoa-quickdraw) enable_cocoa_quickdraw="2";;
--enable-cocoa-quickdraw=*) enable_cocoa_quickdraw="$optarg";;
--with-allegro) with_allegro="2";;
--without-allegro) with_allegro="0";;
--with-allegro=*) with_allegro="$optarg";;
--with-sdl) with_sdl="2";;
--without-sdl) with_sdl="0";;
--with-sdl=*) with_sdl="$optarg";;
--with-cocoa) with_cocoa="2";;
--without-cocoa) with_cocoa="0";;
--with-cocoa=*) with_cocoa="$optarg";;
--with-zlib) with_zlib="2";;
--without-zlib) with_zlib="0";;
--with-zlib=*) with_zlib="$optarg";;
--with-lzma) with_lzma="2";;
--without-lzma) with_lzma="0";;
--with-lzma=*) with_lzma="$optarg";;
--with-liblzma) with_lzma="2";;
--without-liblzma) with_lzma="0";;
--with-liblzma=*) with_lzma="$optarg";;
--with-lzo2) with_lzo2="2";;
--without-lzo2) with_lzo2="0";;
--with-lzo2=*) with_lzo2="$optarg";;
--with-liblzo2) with_lzo2="2";;
--without-liblzo2) with_lzo2="0";;
--with-liblzo2=*) with_lzo2="$optarg";;
--with-xdg-basedir) with_xdg_basedir="2";;
--without-xdg-basedir) with_xdg_basedir="0";;
--with-xdg-basedir=*) with_xdg_basedir="$optarg";;
--with-libxdg-basedir) with_xdg_basedir="2";;
--without-libxdg-basedir) with_xdg_basedir="0";;
--with-libxdg-basedir=*) with_xdg_basedir="$optarg";;
--with-png) with_png="2";;
--without-png) with_png="0";;
--with-png=*) with_png="$optarg";;
--with-libpng) with_png="2";;
--without-libpng) with_png="0";;
--with-libpng=*) with_png="$optarg";;
--with-fluidsynth) with_fluidsynth="2";;
--without-fluidsynth) with_fluidsynth="0";;
--with-fluidsynth=*) with_fluidsynth="$optarg";;
--with-freetype) with_freetype="2";;
--without-freetype) with_freetype="0";;
--with-freetype=*) with_freetype="$optarg";;
--with-libfreetype) with_freetype="2";;
--without-libfreetype) with_freetype="0";;
--with-libfreetype=*) with_freetype="$optarg";;
--with-fontconfig) with_fontconfig="2";;
--without-fontconfig) with_fontconfig="0";;
--with-fontconfig=*) with_fontconfig="$optarg";;
--with-libfontconfig) with_fontconfig="2";;
--without-libfontconfig) with_fontconfig="0";;
--with-libfontconfig=*) with_fontconfig="$optarg";;
--with-icu) with_icu_layout="2";with_icu_sort="2";;
--without-icu) with_icu_layout="0";with_icu_sort="0";;
--with-icu=*) with_icu_layout="$optarg";with_icu_sort="$optarg";;
--with-libicu) with_icu_layout="2";with_icu_sort="2";;
--without-libicu) with_icu_layout="0";with_icu_sort="0";;
--with-libicu=*) with_icu_layout="$optarg";with_icu_sort="$optarg";;
--with-icu-layout) with_icu_layout="2";;
--without-icu-layout) with_icu_layout="0";;
--with-icu-layout=*) with_icu_layout="$optarg";;
--with-icu-sort) with_icu_sort="2";;
--without-icu-sort) with_icu_sort="0";;
--with-icu-sort=*) with_icu_sort="$optarg";;
--static-icu) static_icu="1";;
--static-icu=*) static_icu="$optarg";;
--static-libicu) static_icu="1";;
--static-libicu=*) static_icu="$optarg";;
--with-uniscribe) with_uniscribe="2";;
--without-uniscribe) with_uniscribe="0";;
--with-uniscribe=*) with_uniscribe="$optarg";;
--disable-builtin-depend) enable_builtin_depend="0";;
--enable-builtin-depend) enable_builtin_depend="2";;
--enable-builtin-depend=*) enable_builtin_depend="$optarg";;
--with-makedepend) with_makedepend="2";;
--without-makedepend) with_makedepend="0";;
--with-makedepend=*) with_makedepend="$optarg";;
--with-direct-music) with_direct_music="2";;
--without-direct-music) with_direct_music="0";;
--with-direct-music=*) with_direct_music="$optarg";;
--with-xaudio2) with_xaudio2="2";;
--without-xaudio2) with_xaudio2="0";;
--with-xaudio2=*) with_xaudio2="$optarg";;
--with-sort) with_sort="2";;
--without-sort) with_sort="0";;
--with-sort=*) with_sort="$optarg";;
--with-iconv) with_iconv="2";;
--without-iconv) with_iconv="0";;
--with-iconv=*) with_iconv="$optarg";;
--with-midi=*) with_midi="$optarg";;
--with-midi-arg=*) with_midi_arg="$optarg";;
--without-distcc) with_distcc="0";;
--with-distcc) with_distcc="2";;
--with-distcc=*) with_distcc="$optarg";;
--without-ccache) with_ccache="0";;
--with-ccache) with_ccache="2";;
--with-ccache=*) with_ccache="$optarg";;
--without-nforenum) with_nforenum="0";;
--with-nforenum) with_nforenum="2";;
--with-nforenum=*) with_nforenum="$optarg";;
--without-grfcodec) with_grfcodec="0";;
--with-grfcodec) with_grfcodec="2";;
--with-grfcodec=*) with_grfcodec="$optarg";;
--without-osx-sysroot) with_osx_sysroot="0";;
--with-osx-sysroot) with_osx_sysroot="2";;
--with-osx-sysroot=*) with_osx_sysroot="$optarg";;
--without-application-bundle) with_application_bundle="0";;
--with-application-bundle) with_application_bundle="1";;
--with-application-bundle=*) with_application_bundle="$optarg";;
--without-threads) with_threads="0";;
--with-threads) with_threads="1";;
--with-threads=*) with_threads="$optarg";;
--without-sse) with_sse="0";;
--with-sse) with_sse="1";;
--with-sse=*) with_sse="$optarg";;
--without-libbfd) with_libbfd="0";;
--with-libbfd) with_libbfd="1";;
--with-libbfd=*) with_libbfd="$optarg";;
--without-bfd-extra-debug) with_bfd_extra_debug="0";;
--with-bfd-extra-debug) with_bfd_extra_debug="1";;
--with-bfd-extra-debug=*) with_bfd_extra_debug="$optarg";;
--without-self-gdb-debug) with_self_gdb_debug="0";;
--with-self-gdb-debug) with_self_gdb_debug="1";;
--with-self-gdb-debug=*) with_self_gdb_debug="$optarg";;
--without-self-lldb-debug) with_self_lldb_debug="0";;
--with-self-lldb-debug) with_self_lldb_debug="1";;
--with-self-lldb-debug=*) with_self_lldb_debug="$optarg";;
CC=* | --CC=*) CC="$optarg";;
CXX=* | --CXX=*) CXX="$optarg";;
CFLAGS=* | --CFLAGS=*) CFLAGS="$optarg";;
CXXFLAGS=* | --CXXFLAGS=*) CXXFLAGS="$optarg";;
LDFLAGS=* | --LDFLAGS=*) LDFLAGS="$optarg";;
CFLAGS_BUILD=* | --CFLAGS_BUILD=* | --CFLAGS-BUILD=*) CFLAGS_BUILD="$optarg";;
CXXFLAGS_BUILD=* | --CXXFLAGS_BUILD=* | --CXXFLAGS-BUILD=*) CXXFLAGS_BUILD="$optarg";;
LDFLAGS_BUILD=* | --LDFLAGS_BUILD=* | --LDFLAGS-BUILD=*) LDFLAGS_BUILD="$optarg";;
PKG_CONFIG_PATH=* | --PKG_CONFIG_PATH=* | --PKG-CONFIG-PATH=*) PKG_CONFIG_PATH="$optarg";;
PKG_CONFIG_LIBDIR=* | --PKG_CONFIG_LIBDIR=* | --PKG-CONFIG-LIBDIR=*) PKG_CONFIG_LIBDIR="$optarg";;
--ignore-extra-parameters) ignore_extra_parameters="1";;
--* | -*)
if [ "$ignore_extra_parameters" = "0" ]; then
log 1 "Unknown option $p"
exit 1
else
log 1 "Unknown option $p ignored"
fi
;;
esac
done
if [ -n "$prev_p" ]; then
log 1 "configure: error: missing argument to --$prev_p"
exit 1
fi
# Clean the logfile
echo "" > $config_log
log 2 "Invocation: $0 $*"
if [ "$ignore_extra_parameters" = "0" -o ! -f config.invocation ]; then
echo "$0 $*" > config.invocation
CONFIGURE_INVOCATION="$0 $*"
else
CONFIGURE_INVOCATION="`cat config.invocation`"
fi
}
save_params() {
# Here we save all params, so we can later on do an exact redo of this
# configuration, without having the user to re-input stuff
echo "Running configure with following options:" >> $config_log
echo "" >> $config_log
configure="$CONFIGURE_EXECUTABLE --ignore-extra-parameters"
for p in $save_params_array; do
eval "v=\"\$$p\""
p=`echo "$p" | sed 's@_@-@g;s@\n@@g;s@ @\\ @g'`
# Only save those params that aren't empty
configure="$configure --$p=\"$v\""
done
echo "$configure" >> $config_log
echo "$configure" > config.cache
echo "" >> $config_log
}
# Export a variable so tools like pkg-config can see it when invoked.
# If the variable contains an empty string then unset it.
# $1 - name of the variable to export or unset
export_or_unset() {
eval local value=\$$1
if [ -n "$value" ]; then
export $1;
log 2 "using $1=$value";
else
unset $1;
log 2 "not using $1";
fi
}
check_params() {
# Some params want to be in full uppercase, else they might not work as
# expected.. fix that here
os=`echo $os | tr '[a-z]' '[A-Z]'`
cpu_type=`echo $cpu_type | tr '[a-z]' '[A-Z]'`
# Export some variables to be used by pkg-config
#
# PKG_CONFIG_LIBDIR variable musn't be set if we are not willing to
# override the default pkg-config search path, it musn't be an empty
# string. If the variable is empty (e.g. when an empty string comes
# from config.cache) then unset it. This way the "don't override" state
# will be properly preserved when (re)configuring.
export_or_unset PKG_CONFIG_PATH
export_or_unset PKG_CONFIG_LIBDIR
# Check if all params have valid values
# OS only allows DETECT, UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HAIKU, SUNOS, CYGWIN, MINGW, and OS2
if [ -z "`echo $os | egrep '^(DETECT|UNIX|OSX|FREEBSD|DRAGONFLY|OPENBSD|NETBSD|HPUX|HAIKU|SUNOS|CYGWIN|MINGW|OS2)$'`" ]; then
log 1 "configure: error: invalid option --os=$os"
log 1 " Available options are: --os=[DETECT|UNIX|OSX|FREEBSD|DRAGONFLY|OPENBSD|NETBSD|HPUX|HAIKU|SUNOS|CYGWIN|MINGW|OS2]"
exit 1
fi
# cpu_type can be either 32 or 64
if [ -z "`echo $cpu_type | egrep '^(32|64|DETECT)$'`" ]; then
log 1 "configure: error: invalid option --cpu-type=$cpu_type"
log 1 " Available options are: --cpu-type[=DETECT|32|64]"
exit 1
fi
# enable_debug should be between 0 and 4
if [ -z "`echo $enable_debug | egrep '^[0123]$'`" ]; then
log 1 "configure: error: invalid option --enable-debug=$enable_debug"
log 1 " Available options are: --enable-debug[=0123]"
exit 1
fi
# enable_desync_debug should be between 0 and 3
if [ -z "`echo $enable_desync_debug | egrep '^[012]$'`" ]; then
log 1 "configure: error: invalid option --enable-desync-debug=$enable_desync_debug"
log 1 " Available options are: --enable-desync-debug[=012]"
exit 1
fi
detect_awk
detect_os
check_build
check_host
# Check for universal builds; they only make sense for OSX, so fail if enabled for another OS
if [ "$enable_universal" = "0" ]; then
log 1 "checking universal build... no"
else
if [ "$os" != "OSX" ]; then
log 1 "configure: error: --enable-universal only works on OSX"
exit 1
fi
log 1 "checking universal build... yes, for: $enable_universal"
fi
# Already detected by check_build
log 1 "checking build cc... $cc_build"
log 1 "checking host cc... $cc_host"
check_cxx_build
check_cxx_host
check_windres
if [ "$enable_strip" != "0" ]; then
check_strip
else
log 1 "checking strip... disabled"
fi
check_lipo
if [ "$enable_builtin_depend" != "0" ]; then
log 1 "checking builtin depend... yes"
makedepend="\$(SRC_OBJS_DIR)/\$(DEPEND)"
else
log 1 "checking builtin depend... no"
fi
check_makedepend
detect_cputype
detect_sse_capable_architecture
if [ "$enable_static" = "1" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
enable_static="2"
else
enable_static="0"
fi
fi
if [ "$enable_static" != "0" ]; then
log 1 "checking static... yes"
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ] && [ "$os" != "OSX" ]; then
log 1 "WARNING: static is only known to work on Windows, and MacOSX"
log 1 "WARNING: use static at your own risk on this platform"
sleep 5
fi
else
log 1 "checking static... no"
fi
if [ "$enable_unicode" = "1" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
enable_unicode="2"
else
enable_unicode="0"
fi
fi
if [ "$enable_unicode" != "0" ]; then
log 1 "checking unicode... yes"
else
log 1 "checking unicode... no"
fi
# Show what we configured
if [ "$enable_debug" = "0" ]; then
log 1 "using debug level... no"
elif [ "$enable_profiling" != "0" ]; then
log 1 "using debug level... profiling (debug level $enable_debug)"
else
log 1 "using debug level... level $enable_debug"
fi
if [ "$enable_desync_debug" = "0" ]; then
log 1 "using desync debug level... no"
else
log 1 "using desync debug level... level $enable_desync_debug"
log 1 "WARNING: desync debug functions slow down the game considerably."
log 1 "WARNING: use only when you are instructed to do so"
log 1 " or when you know what you are doing."
sleep 5
fi
if [ "$enable_lto" != "0" ]; then
# GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
has_lto=`($cxx_build -dumpspecs 2>&1 | grep '\%{flto') || ($cxx_build -help ipo 2>&1 | grep '\-ipo')`
if [ -n "$has_lto" ]; then
log 1 "using link time optimization... yes"
else
enable_lto="0"
log 1 "using link time optimization... no"
log 1 "WARNING: you selected link time optimization but it is not found."
sleep 5
fi
else
log 1 "using link time optimization... no"
fi
if [ "$os" != "OSX" ] && [ "$with_osx_sysroot" != "0" ]; then
if [ "$with_osx_sysroot" = "1" ]; then
with_osx_sysroot="0"
log 1 "checking OSX sysroot... not OSX, skipping"
else
log 1 "configure: error: --with-osx-sysroot only works if OSX is the target"
exit 1
fi
fi
if [ "$with_osx_sysroot" != "0" ]; then
if [ "$enable_universal" = "0" ] && [ "$with_osx_sysroot" != "1" ] && [ "$with_osx_sysroot" != "2" ]; then
# Sysroot manually specified? Check for usability
log 1 "checking OSX sysroot... $with_osx_sysroot"
if ! check_osx_sdk "$with_osx_sysroot"; then
log 1 "Passed sysroot not found/not functional"
exit 1
fi
else
# If autodetect and no universal, use system default
if [ "$with_osx_sysroot" = "1" ] && [ "$enable_universal" = "0" ]; then
log 1 "checking OSX sysroot... no (use system default)"
else
log 1 "checking OSX sysroot... automatically"
detect_osx_sdk
fi
fi
if [ -n "$osx_sdk_path" ]; then
if [ "$enable_universal" != "0" ]; then
if [ -z "$osx_sdk_104_path" ]; then
log 1 "WARNING: Could not find a usable 10.4u SDK, the resulting"
log 1 "WARNING: binary will only run on OSX 10.5 or later"
osx_sdk_104_path="$osx_sdk_path"
fi
OSX_SYSROOT="-isysroot $osx_sdk_104_path"
OSX_LD_SYSROOT="-Wl,-syslibroot,$osx_sdk_104_path"
else
OSX_SYSROOT="-isysroot $osx_sdk_path"
OSX_LD_SYSROOT="-Wl,-syslibroot,$osx_sdk_path"
fi
fi
else
if [ "$os" = "OSX" ]; then
log 1 "checking OSX sysroot... no (use system default)"
fi
fi
detect_allegro
detect_sdl
detect_cocoa
if [ "$enable_dedicated" != "0" ]; then
log 1 "checking GDI video driver... dedicated server, skipping"
log 1 "checking dedicated... found"
else
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
log 1 "checking GDI video driver... found"
else
log 1 "checking GDI video driver... not Windows, skipping"
fi
if [ -z "$allegro_config" ] && [ -z "$sdl_config" ] && [ "$with_cocoa" = 0 ] && [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ]; then
log 1 "configure: error: no video driver development files found"
log 1 " If you want a dedicated server use --enable-dedicated as parameter"
exit 1
else
log 1 "checking dedicated... not selected"
fi
fi
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ]; then
log 1 "checking console application... not Windows, skipping"
elif [ "$enable_console" = "1" ] && [ "$enable_dedicated" != "0" ]; then
log 1 "checking console application... dedicated server, enabled"
enable_console="2"
elif [ "$enable_console" = "1" ]; then
log 1 "checking console application... disabled (only used when forced)"
enable_console="0"
elif [ "$enable_console" = "0" ]; then
log 1 "checking console application... disabled"
else
log 1 "checking console application... enabled"
fi
log 1 "checking squirrel... found"
SCRIPT_SRC_DIR="$ROOT_DIR/src/3rdparty/squirrel/include"
if [ "$enable_translator" != "0" ]; then
log 1 "checking translator... debug"
# -t shows TODO items, normally they are muted
strgen_flags="-t"
else
log 1 "checking translator... no"
strgen_flags=""
fi
if [ "$enable_assert" != "0" ]; then
log 1 "checking assert... enabled"
else
log 1 "checking assert... disabled"
fi
pre_detect_with_zlib=$with_zlib
detect_zlib
if [ "$with_zlib" = "0" ] || [ -z "$zlib_config" ]; then
log 1 "WARNING: zlib was not detected or disabled"
log 1 "WARNING: OpenTTD doesn't require zlib, but it does mean that many features"
log 1 "WARNING: (like loading most old savegames/scenarios, loading heightmaps,"
log 1 "WARNING: using PNG, or using fonts, ...) will be disabled."
if [ "$pre_detect_with_zlib" = "0" ]; then
log 1 "WARNING: We strongly suggest you to install zlib."
else
log 1 "configure: error: no zlib detected"
log 1 " If you want to compile without zlib use --without-zlib as parameter"
exit
fi
fi
pre_detect_with_lzma=$with_lzma
detect_lzma
if [ "$with_lzma" = "0" ] || [ -z "$lzma_config" ]; then
log 1 "WARNING: lzma was not detected or disabled"
log 1 "WARNING: OpenTTD doesn't require lzma, but it does mean that many features"
log 1 "WARNING: (like loading most savegames/scenarios and joining most servers)"
log 1 "WARNING: will be disabled."
if [ "$pre_detect_with_lzma" = "0" ]; then
log 1 "WARNING: We strongly suggest you to install liblzma."
log 1 "configure: error: no liblzma detected"
else
log 1 " If you want to compile without lzma use --without-lzma as parameter"
exit
fi
fi
pre_detect_with_lzo2=$with_lzo2
detect_lzo2
if [ "$with_lzo2" = "0" ] || [ -z "$lzo2" ]; then
log 1 "WARNING: liblzo2 was not detected or disabled"
log 1 "WARNING: OpenTTD doesn't require liblzo2, but it does mean that"
log 1 "WARNING: loading old savegames/scenarios will be disabled."
if [ "$pre_detect_with_lzo2" = "0" ]; then
log 1 "WARNING: We strongly suggest you to install liblzo2."
else
log 1 "configure: error: no liblzo2 detected"
log 1 " If you want to compile without liblzo2 use --without-liblzo2 as parameter"
exit
fi
fi
if [ "$with_uniscribe" != "0" ]; then
if [ "$os" != "MINGW" ]; then
if [ "$with_uniscribe" != "1" ]; then
log 1 "configure: error: Uniscribe is only supported on native Win32 targets"
exit 1
fi
with_uniscribe="0"
log 1 "checking Uniscribe text layout... not Windows, skipping"
else
log 1 "checking Uniscribe text layout... found"
# Don't use ICU unless forced.
if [ "$with_icu_layout" = "1" ]; then
with_icu_layout="0"
fi
if [ "$with_icu_sort" = "1" ]; then
with_icu_sort="0"
fi
fi
fi
detect_xdg_basedir
detect_png
detect_freetype
detect_fontconfig
detect_icu_layout
detect_icu_sort
detect_fluidsynth
if [ "$with_direct_music" != "0" ]; then
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ]; then
if [ "$with_direct_music" != "1" ]; then
log 1 "configure: error: direct-music is only supported on Win32 targets"
exit 1
fi
with_direct_music="0"
log 1 "checking direct-music... not Windows, skipping"
else
check_direct_music
fi
fi
if [ "$with_xaudio2" != "0" ]; then
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ]; then
if [ "$with_xaudio2" != "1" ]; then
log 1 "configure: error: xaudio2 is only supported on Win32 targets"
exit 1
fi
with_xaudio2="0"
log 1 "checking xaudio2... not Windows, skipping"
else
check_xaudio2
fi
fi
detect_sort
# Suppress language errors when there is a version defined, indicating a release
# It just isn't pretty if any release produces warnings in the languages.
if [ -f "$ROOT_DIR/version" ]; then
lang_suppress="yes"
log 1 "suppress language errors... yes"
else
lang_suppress=""
log 1 "suppress language errors... no"
fi
if [ "$enable_debug" = "0" ] && [ "$enable_profiling" = "0" ] && [ "$enable_strip" != "0" ]; then
if [ "$os" = "OSX" ]; then
strip_arg=""
elif [ "$os" = "OS2" ]; then
strip_arg=""
# OS2 uses strip via gcc, because it needs to be feed to emxbind
LDFLAGS="$LDFLAGS -s"
elif [ "$os" = "SUNOS" ]; then
# The GNU strip does know -s, the non-GNU doesn't
# So try to detect it (in a bit of an ugly way)
strip_arg="`$strip -s strip.test 2>/dev/null && echo \"-s\"`"
else
strip_arg="-s"
fi
log 1 "checking stripping... $strip $strip_arg"
else
strip=""
log 1 "checking stripping... skipped"
fi
if [ "$with_distcc" = "0" ]; then
log 1 "checking distcc... no"
elif [ "$with_distcc" = "1" ]; then
with_distcc="0"
log 1 "checking distcc... no (only used when forced)"
elif [ "$with_distcc" = "2" ]; then
distcc="distcc"
else
distcc="$with_distcc"
fi
if [ "$with_distcc" != "0" ]; then
res="`$distcc --version 2>/dev/null | head -n 1 | cut -b 1-6`"
if [ "$res" != "distcc" ]; then
distcc=""
log 1 "checking distcc... no"
if [ "$with_distcc" = "2" ]; then
log 1 "configure: error: no distcc detected, but was forced to be used"
exit 1
fi
if [ "$with_distcc" != "1" ]; then
log 1 "configure: error: '$with_distcc' doesn't seem a distcc to me"
exit 1
fi
fi
log 1 "checking distcc... $distcc"
fi
if [ "$with_ccache" = "0" ]; then
log 1 "checking ccache... no"
elif [ "$with_ccache" = "1" ]; then
with_ccache="0"
log 1 "checking ccache... no (only used when forced)"
elif [ "$with_ccache" = "2" ]; then
ccache="ccache"
else
ccache="$with_ccache"
fi
if [ "$with_ccache" != "0" ]; then
res="`$ccache --version 2>/dev/null | head -n 1 | cut -b 1-6`"
if [ "$res" != "ccache" ]; then
ccache=""
log 1 "checking ccache... no"
if [ "$with_ccache" = "2" ]; then
log 1 "configure: error: no ccache detected, but was forced to be used"
exit 1
fi
if [ "$with_ccache" != "1" ]; then
log 1 "configure: error: '$with_ccache' doesn't seem a ccache to me"
exit 1
fi
fi
log 1 "checking ccache... $ccache"
fi
detect_grfcodec
detect_nforenum
if [ -z "$grfcodec" ] && [ -n "$nforenum" ]; then
log 1 "checking nforenum/grfcodec... nforenum needs grfcodec enabled, disabling nforenum"
nforenum=""
fi
if [ -z "$nforenum" ] && [ -n "$grfcodec" ]; then
log 1 "checking nforenum/grfcodec... grfcodec needs nforenum enabled, disabling grfcodec"
grfcodec=""
fi
if [ "$os" != "OSX" ] && [ "$with_application_bundle" != "0" ]; then
if [ "$with_application_bundle" = "1" ]; then
with_application_bundle="0"
log 1 "checking OSX application bundle... not OSX, skipping"
else
log 1 "configure: error: --with-application-bundle only works if OSX is the target"
exit 1
fi
fi
if [ "$os" = "OSX" ] && [ "$with_application_bundle" = "1" ]; then
OSXAPP="OpenTTD.app"
else
OSXAPP=""
fi
if [ "$os" = "OSX" ]; then
# Test on ppc970 (G5) - we can optimize there
if [ "$enable_osx_g5" != "0" ]; then
log 1 "detecting ppc970 (G5)... yes (forced)"
else
# First, are we a real OSX system, else we can't detect it
native=`LC_ALL=C uname | tr '[A-Z]' '[a-z]' | grep darwin`
# If $host doesn't match $build , we are cross-compiling
if [ -n "$native" ] && [ "$build" = "$host" ]; then
$cxx_build $SRC_DIR/os/macosx/G5_detector.cpp -o G5_detector
res=`./G5_detector`
rm -f G5_detector
if [ -n "$res" ]; then
# This is G5, add flags for it
enable_osx_g5="2"
log 1 "detecting ppc970 (G5)... yes"
else
enable_osx_g5="0"
log 1 "detecting ppc970 (G5)... no"
fi
else
enable_osx_g5="0"
log 1 "detecting ppc970 (G5)... no (cross-compiling)"
fi
fi
else
if [ "$enable_osx_g5" != "0" ]; then
log 1 "configure: error: ppc970 (OSX G5) selected, but not compiling for OSX"
log 1 "configure: error: either select OSX as OS, or deselect ppc970"
exit 1
fi
fi
if [ -d "$ROOT_DIR/.git" ] && [ -n "`git help 2>/dev/null`" ]; then
log 1 "checking revision... git detection"
elif [ -f "$ROOT_DIR/.ottdrev-vc" ]; then
log 1 "checking revision... source release version"
elif [ -d "$ROOT_DIR/.svn" ] && [ -n "`svn help 2>/dev/null`" ]; then
log 1 "checking revision... svn detection"
elif [ -d "$ROOT_DIR/../.svn" ] && [ -n "`svn help 2>/dev/null`" ] && [ -n "`LC_ALL=C svn info $ROOT_DIR/.. | grep '^URL:.*tags$'`" ]; then
# subversion changed its behaviour; now not all folders have a .svn folder,
# but only the root folder. Since making tags requires a (sparse) checkout
# of the tags folder, the folder of the tag does not have a .svn folder
# anymore and this fails to detect the subversion repository checkout.
log 1 "checking revision... svn detection (tag)"
elif [ -d "$ROOT_DIR/.hg" ] && [ -n "`HGPLAIN= hg help 2>/dev/null`" ]; then
log 1 "checking revision... hg detection"
elif [ -f "$ROOT_DIR/.ottdrev" ]; then
log 1 "checking revision... source tarball"
else
log 1 "checking revision... no detection"
log 1 "WARNING: there is no means to determine the version."
log 1 "WARNING: please use a subversion, mercurial, or git checkout of OpenTTD."
log 1 "WARNING: you can only join game servers that have been compiled without"
log 1 "WARNING: version detection."
log 1 "WARNING: there is a great chance you desync."
log 1 "WARNING: USE WITH CAUTION!"
sleep 5
fi
if [ "$doc_dir" = "1" ]; then
if [ "$os" = "UNIX" ] || [ "$os" = "FREEBSD" ] || [ "$os" = "DRAGONFLY" ] || [ "$os" = "OPENBSD" ] || [ "$os" = "NETBSD" ] || [ "$os" = "HPUX" ] || [ "$os" = "SUNOS" ]; then
doc_dir="share/doc/openttd"
else
doc_dir="$data_dir/docs"
fi
else
doc_dir="`echo $doc_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
fi
if [ "$icon_theme_dir" = "1" ]; then
if [ "$os" = "UNIX" ] || [ "$os" = "FREEBSD" ] || [ "$os" = "DRAGONFLY" ] || [ "$os" = "OPENBSD" ] || [ "$os" = "NETBSD" ] || [ "$os" = "HPUX" ] || [ "$os" = "SUNOS" ]; then
icon_theme_dir="share/icons/hicolor"
else
icon_theme_dir=""
fi
else
icon_theme_dir="`echo $icon_theme_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
fi
if [ "$personal_dir" = "1" ]; then
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ] || [ "$os" = "HAIKU" ]; then
personal_dir="OpenTTD"
elif [ "$os" = "OSX" ]; then
personal_dir="Documents/OpenTTD"
else
personal_dir=".openttd"
fi
else
personal_dir="`echo $personal_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
fi
if [ "$shared_dir" = "1" ]; then
# we are using default values
if [ "$os" = "OSX" ]; then
shared_dir="/Library/Application\\\\ Support/OpenTTD"
else
shared_dir=""
fi
else
shared_dir="`echo $shared_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
fi
if [ "$man_dir" = "1" ]; then
# add manpage on UNIX systems
if [ "$os" = "UNIX" ] || [ "$os" = "FREEBSD" ] || [ "$os" = "DRAGONFLY" ] || [ "$os" = "OPENBSD" ] || [ "$os" = "NETBSD" ] || [ "$os" = "HPUX" ] || [ "$os" = "SUNOS" ] || [ "$os" = "OSX" ]; then
man_dir="share/man/man6"
else
man_dir=""
fi
else
man_dir="`echo $man_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
fi
if [ "$menu_dir" = "1" ]; then
# add a freedesktop menu item only for some UNIX systems
if [ "$os" = "UNIX" ] || [ "$os" = "FREEBSD" ] || [ "$os" = "DRAGONFLY" ] || [ "$os" = "OPENBSD" ] || [ "$os" = "NETBSD" ] || [ "$os" = "HPUX" ] || [ "$os" = "SUNOS" ]; then
menu_dir="share/applications"
else
menu_dir=""
fi
else
menu_dir="`echo $menu_dir | sed 's@\([^\]\)\\\\ @\1\\\\\\\\ @g;s@\([^\]\) @\1\\\\\\\\ @g'`"
fi
detect_iconv
if [ -n "$personal_dir" ]
then
log 1 "personal home directory... $personal_dir"
else
log 1 "personal home directory... none"
fi
if [ -n "$shared_dir" ]
then
log 1 "shared data directory... $shared_dir"
else
log 1 "shared data directory... none"
fi
if [ -n "$install_dir" ]
then
log 1 "installation directory... $install_dir"
else
log 1 "installation directory... none"
fi
if [ -n "$icon_theme_dir" ]
then
log 1 "icon theme directory... $icon_theme_dir"
else
log 1 "icon theme directory... none"
fi
if [ -n "$man_dir" ]
then
log 1 "manual page directory... $man_dir"
else
log 1 "manual page directory... none"
fi
if [ -n "$menu_dir" ]
then
log 1 "menu item directory... $menu_dir"
else
log 1 "menu item directory... none"
fi
}
make_compiler_cflags() {
# Params:
# $1 - compiler
# $2 - name of the cflags variable
# $3 - name of the cxxflags variable
# $4 - name of the ldflags variable
# $5 - name of the features variable
# Get the compiler to tell us who it is
version_line="`$1 --version | head -n1`"
eval eval "flags=\\\$$2"
eval eval "cxxflags=\\\$$3"
eval eval "ldflags=\\\$$4"
eval eval "features=\\\$$5"
cppstd="-std=c++11"
if [ `echo "$version_line" | cut -d' ' -f1` = "icc" ]; then
# Enable some things only for certain ICC versions
cc_version=`$1 -dumpversion | cut -c 1-4 | sed s@\\\.@@g`
flags="$flags -rdynamic"
ldflags="$ldflags -rdynamic"
if [ -z "$first_time_icc_check" ]; then
first_time_icc_check=no
if [ $cc_version -lt 90 ]; then
log 1 "WARNING: you seem to be using a very old version of ICC"
log 1 "WARNING: OpenTTD hasn't been tested with this version"
sleep 5
elif [ $cc_version -lt 120 ]; then
log 1 "WARNING: you seem to be using an unsupported ICC version"
log 1 "WARNING: ICC older than 12.0 is known to fail to compile OpenTTD"
sleep 5
fi
fi
flags="$flags -Wall"
# remark #111: statement is unreachable
flags="$flags -wd111"
# remark #181: argument is incompatible with corresponding format string conversion
# ICC is very picky about signedness of operands, warnings provided by GCC are enough
flags="$flags -wd181"
# remark #271: trailing comma is nonstandard
flags="$flags -wd271"
# remark #280: selector expression is constant
flags="$flags -wd280"
# remark #304: access control not specified ("public" by default)
flags="$flags -wd304"
# remark #383: value copied to temporary, reference to temporary used
flags="$flags -wd383"
# remark #444: destructor for base class ... is not virtual
flags="$flags -wd444"
# remark #593: variable ... was set but never used
flags="$flags -wd593"
# warning #654: overloaded virtual function ... is only partially overridden in class ...
flags="$flags -wd654"
# remark #810: conversion from ... to ... may lose significant bits
flags="$flags -wd810"
# remark #869: parameter ... was never referenced
flags="$flags -wd869"
# warning #873: function ... ::operator new ... has no corresponding operator delete ...
flags="$flags -wd873"
# remark #981: operands are evaluated in unspecified order
flags="$flags -wd981"
# remark #1418: external function definition with no prior declaration
flags="$flags -wd1418"
# remark #1419: external declaration in primary source file
flags="$flags -wd1419"
# remark #1572: floating-point equality and inequality
flags="$flags -wd1572"
# remark #1599: declaration hides variable/parameter ...
flags="$flags -wd1599"
# remark #1720: function ... ::operator new ... has no corresponding member operator delete ...
flags="$flags -wd1720"
if [ $cc_version -lt 110 ]; then
# warns about system headers with recent glibc:
# warning #1292: attribute "__nonnull__" ignored
flags="$flags -wd1292"
fi
if [ $cc_version -ge 100 ]; then
# warning #1899: multicharacter character literal (potential portability problem)
flags="$flags -wd1899"
# vec report defaults to telling where it did loop vectorisation, which is not very important
flags="$flags -vec-report=0 "
fi
if [ $cc_version -ge 110 ]; then
# remark #2259: non-pointer conversion from ... to ... may lose significant bits
flags="$flags -wd2259"
fi
if [ $cc_version -lt 140 ]; then
log 1 "configure: error: ICC version is too old: `$1 -dumpversion`, minumum: 14.0"
exit 1
fi
if [ "$enable_lto" != "0" ]; then
has_ipo=`$1 -help ipo | grep '\-ipo'`
if [ -n "$has_ipo" ]; then
# Use IPO (only if we see IPO exists and is requested)
flags="$flags -ipo"
features="$features lto"
fi
fi
elif echo "$version_line" | grep -q "clang"; then
# Enable some things only for certain clang versions
# Need to try really hard to get the version line, because OSX clang likes to hide its true version
cc_version="`$1 -v 2>&1 | grep -i version | head -n 1 | sed s@[^0-9.]@@g | $awk -F . '{printf "%d%02d\n", $1, $2}'`"
# aliasing rules are not held in openttd code
flags="$flags -fno-strict-aliasing"
# -W alone doesn't enable all warnings enabled by -Wall; on the other hand,
# -Weverything enables too many useless warnings that can't be disabled (as of 3.0)
flags="$flags -Wall -W -Wextra"
# warning: unused parameter '...'
flags="$flags -Wno-unused-parameter"
# warning: expression result unused
flags="$flags -Wno-unused-value"
# warning: multi-character character constant
flags="$flags -Wno-multichar"
# warning: explicitly assigning a variable of type '...' to itself
# it happens when using the FOR_ALL_WINDOWS_FROM_BACK_FROM macro
flags="$flags -Wno-self-assign"
# warning: is a C++11 extension
flags="$flags -Wno-c++11-extensions"
if [ "$cc_version" -lt "300" ]; then
# warning: equality comparison with extraneous parentheses
flags="$flags -Wno-parentheses"
# warning: operands of ? are integers of different signs: 'unsigned int' and 'int'
flags="$flags -Wno-sign-compare"
fi
if [ "$cc_version" -ge "300" ]; then
# warning: equality comparison with extraneous parentheses
# this warning could be useful, but it warns about code in squirrel
flags="$flags -Wno-parentheses-equality"
fi
if [ "$with_ccache" != "0" -o "$with_distcc" != "0" ]; then
# ccache and distcc run separate preprocess and compile passes,
# both are fed with the same CFLAGS. Unfortunately, clang
# complains about -I when compiling preprocessed files:
# "clang: warning: argument unused during compilation: '-I /usr/include'"
flags="$flags -Qunused-arguments"
fi
if [ "$enable_assert" -eq "0" ]; then
# do not warn about unused variables when building without asserts
flags="$flags -Wno-unused-variable"
fi
if [ "$cc_version" -ge "303" ]; then
# clang completed C++11 support in version 3.3
flags="$flags -DCUSTOM_ALLOCATOR"
else
log 1 "configure: error: clang version is too old: `$1 -v 2>&1 | grep -i version | head -n 1`, minumum: 3.3"
exit 1
fi
# rdynamic is used to get useful stack traces from crash reports.
ldflags="$ldflags -rdynamic"
# Assume gcc, since it just uses argv[0] in its --version output
else
# Enable some things only for certain GCC versions
# cc_version = major_version * 100 + minor_version
# For example: "3.3" -> 303, "4.9.2" -> 409, "6" -> 600, "23.5" -> 2305
cc_version=`$1 -dumpversion | $awk -F . '{printf "%d%02d", $1, $2}'`
if [ $cc_version -lt 303 ]; then
log 1 "configure: error: gcc older than 3.3 can't compile OpenTTD because of its poor template support"
exit 1
fi
flags="$flags -Wall -Wno-multichar -Wsign-compare -Wundef"
flags="$flags -Wwrite-strings -Wpointer-arith"
flags="$flags -W -Wno-unused-parameter -Wredundant-decls"
flags="$flags -Wformat=2 -Wformat-security"
cppstd="-std=gnu++11"
if [ $enable_assert -eq 0 ]; then
# Do not warn about unused variables when building without asserts
flags="$flags -Wno-unused-variable"
if [ $cc_version -ge 406 ]; then
# GCC 4.6 gives more warnings, disable them too
flags="$flags -Wno-unused-but-set-variable"
flags="$flags -Wno-unused-but-set-parameter"
fi
fi
if [ $cc_version -ge 304 ]; then
# Warn when a variable is used to initialise itself:
# int a = a;
flags="$flags -Winit-self"
fi
if [ $cc_version -ge 400 ]; then
# GCC 4.0+ complains about that we break strict-aliasing.
# On most places we don't see how to fix it, and it doesn't
# break anything. So disable strict-aliasing to make the
# compiler all happy.
flags="$flags -fno-strict-aliasing"
# Warn about casting-out 'const' with regular C-style cast.
# The preferred way is const_cast<>() which doesn't warn.
flags="$flags -Wcast-qual"
fi
if [ $cc_version -ge 402 ]; then
# GCC 4.2+ automatically assumes that signed overflows do
# not occur in signed arithmetics, whereas we are not
# sure that they will not happen. It furthermore complains
# about its own optimized code in some places.
flags="$flags -fno-strict-overflow"
# GCC 4.2 no longer includes -Wnon-virtual-dtor in -Wall.
# Enable it in order to be consistent with older GCC versions.
flags="$flags -Wnon-virtual-dtor"
fi
if [ $cc_version -eq 405 ]; then
# Prevent optimisation supposing enums are in a range specified by the standard
# For details, see http://gcc.gnu.org/PR43680
flags="$flags -fno-tree-vrp"
fi
if [ $cc_version -eq 407 ]; then
# Disable -Wnarrowing which gives many warnings, such as:
# warning: narrowing conversion of '...' from 'unsigned int' to 'int' inside { } [-Wnarrowing]
# They are valid according to the C++ standard, but useless.
cxxflags="$cxxflags -Wno-narrowing"
fi
if [ $cc_version -ge 407 ]; then
# Disable bogus 'attempt to free a non-heap object' warning
flags="$flags -Wno-free-nonheap-object"
else
log 1 "configure: error: GCC version is too old: `$1 -dumpversion`, minumum: 4.7"
exit 1
fi
if [ $cc_version -ge 409 ]; then
# Enable use of C++11 custom allocators
CFLAGS="$CFLAGS -DCUSTOM_ALLOCATOR"
fi
if [ $cc_version -ge 600 ]; then
# -flifetime-dse=2 (default since GCC 6) doesn't play
# well with our custom pool item allocator
cxxflags="$cxxflags -flifetime-dse=1"
fi
if [ "$enable_lto" != "0" ]; then
# GCC 4.5 outputs '%{flto}', GCC 4.6 outputs '%{flto*}'
has_lto=`$1 -dumpspecs | grep '\%{flto'`
if [ -n "$has_lto" ]; then
# Use LTO only if we see LTO exists and is requested
if [ $cc_version -lt 406 ]; then
flags="$flags -flto"
else
flags="$flags -flto=jobserver"
fi
ldflags="$ldflags -fwhole-program"
features="$features lto"
fi
fi
has_rdynamic=`$1 -dumpspecs | grep rdynamic`
if [ -n "$has_rdynamic" ]; then
# rdynamic is used to get useful stack traces from crash reports.
flags="$flags -rdynamic"
ldflags="$ldflags -rdynamic"
fi
fi
eval "$2=\"$flags\""
eval "$3=\"$cxxflags $cppstd\""
eval "$4=\"$ldflags\""
eval "$5=\"$features\""
}
test_compile_libbfd() {
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.bfd -x c++ - $1"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.bfd -x c++ - $1 2> /dev/null << EOL
#define PACKAGE 1
#define PACKAGE_VERSION 1
#include
#include
int main() {
bfd_init();
bfd *abfd = bfd_openr("test", "test");
bfd_check_format(abfd, bfd_object);
bfd_get_file_flags(abfd);
bfd_map_over_sections(abfd, (void (*)(bfd*, asection*, void*)) 0, (void *) 0);
asymbol *syms = 0;
long symcount = bfd_read_minisymbols(abfd, false, (void**) &syms, (unsigned int *) 0);
bfd_get_section_flags(abfd, (asection*) 0);
bfd_get_section_vma(abfd, (asection*) 0);
bfd_section_size(abfd, (asection*) 0);
bfd_find_nearest_line(abfd, (asection*) 0, (asymbol **) 0, (bfd_vma) 0, (const char **) 0, (const char **) 0, (unsigned int *) 0);
return (int) symcount;
}
EOL
ret=$?
rm -f tmp.config.bfd
log 2 " exit code $ret"
return $ret
}
make_cflags_and_ldflags() {
# General CFlags for BUILD
CFLAGS_BUILD_ENV="$CFLAGS_BUILD"
CFLAGS_BUILD=""
# Special CXXFlags for BUILD
CXXFLAGS_BUILD_ENV="$CXXFLAGS_BUILD"
CXXFLAGS_BUILD=""
# LDFLAGS for BUILD
LDFLAGS_BUILD_ENV="$LDFLAGS_BUILD"
LDFLAGS_BUILD=""
# FEATURES for BUILD (lto)
FEATURES_BUILD=""
# General CFlags for HOST
CFLAGS_ENV="$CFLAGS"
CFLAGS=""
# Special CXXFlags for HOST
CXXFLAGS_ENV="$CXXFLAGS"
CXXFLAGS=""
# Libs to compile. In fact this is just LDFLAGS
LIBS=""
# LDFLAGS used for HOST
LDFLAGS_ENV="$LDFLAGS"
LDFLAGS=""
# FEATURES for HOST (lto)
FEATURES=""
make_compiler_cflags "$cc_build" "CFLAGS_BUILD" "CXXFLAGS_BUILD" "LDFLAGS_BUILD" "FEATURES_BUILD"
make_compiler_cflags "$cc_host" "CFLAGS" "CXXFLAGS" "LDFLAGS" "FEATURES"
CFLAGS="$CFLAGS -D$os"
CFLAGS_BUILD="$CFLAGS_BUILD -D$os"
if [ "$enable_static" != "0" ]; then
STATIC_FLAGS="--static"
else
STATIC_FLAGS=""
fi
if [ "$enable_debug" = "0" ]; then
# No debug, add default stuff
OBJS_SUBDIR="release"
if [ "$enable_profiling" = "0" ]; then
# -fomit-frame-pointer and -pg do not go well together (gcc errors they are incompatible)
CFLAGS="-fomit-frame-pointer $CFLAGS"
fi
CFLAGS="-O2 $CFLAGS"
else
OBJS_SUBDIR="debug"
# Each debug level reduces the optimization by a bit
if [ $enable_debug -ge 1 ]; then
CFLAGS="$CFLAGS -g -D_DEBUG"
fi
if [ $enable_debug -ge 2 ]; then
CFLAGS="$CFLAGS -fno-inline"
fi
if [ $enable_debug -ge 3 ]; then
CFLAGS="$CFLAGS -O0"
else
CFLAGS="$CFLAGS -O2"
fi
fi
if [ $enable_debug -le 2 ]; then
cc_host_is_gcc=`basename "$cc_host" | grep "gcc" 2>/dev/null`
if [ -n "$cc_host_is_gcc" ]; then
# Define only when compiling with GCC. Some GLIBC versions use GNU
# extensions in a way that breaks build with at least ICC.
# This requires -O1 or more, so debug level 3 (-O0) is excluded.
CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"
fi
cc_build_is_gcc=`basename "$cc_build" | grep "gcc" 2>/dev/null`
if [ -n "$cc_build_is_gcc" ]; then
# Add -O1 and fortify source to the tools needed for building, on gcc
CFLAGS_BUILD="$CFLAGS_BUILD -D_FORTIFY_SOURCE=2 -O1"
elif [ -n "`basename "$cc_build" | grep "clang" 2>/dev/null`" ]; then
# Add -O1 to the tools needed for building, on clang
CFLAGS_BUILD="$CFLAGS_BUILD -O1"
fi
fi
if [ "$os" = "OSX" ] && [ $cc_version -eq 400 ]; then
# Apple's GCC 4.0 has a compiler bug for x86_64 with (higher) optimization,
# wrongly optimizing ^= in loops. This disables the failing optimisation.
CFLAGS="$CFLAGS -fno-expensive-optimizations"
fi
if [ "$enable_profiling" != "0" ]; then
CFLAGS="$CFLAGS -pg"
LDFLAGS="$LDFLAGS -pg"
fi
if [ "$with_threads" = "0" ]; then
CFLAGS="$CFLAGS -DNO_THREADS"
fi
if [ "$with_sse" = "1" ]; then
CFLAGS="$CFLAGS -DWITH_SSE"
fi
if [ "`echo $1 | cut -c 1-3`" != "icc" ]; then
if [ "$os" = "CYGWIN" ]; then
flags="$flags -mwin32"
LDFLAGS="$LDFLAGS -mwin32"
fi
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
if [ $cc_version -lt 406 ]; then
flags="$flags -mno-cygwin"
LDFLAGS="$LDFLAGS -mno-cygwin"
fi
if [ "$enable_console" != "0" ]; then
LDFLAGS="$LDFLAGS -Wl,--subsystem,console"
else
LDFLAGS="$LDFLAGS -Wl,--subsystem,windows"
fi
LIBS="$LIBS -lws2_32 -lwinmm -lgdi32 -ldxguid -lole32 -limm32"
if [ $cc_version -ge 404 ]; then
LDFLAGS_BUILD="$LDFLAGS_BUILD -static-libgcc -static-libstdc++"
fi
if [ $cc_version -ge 407 ]; then
CFLAGS="$CFLAGS -mno-ms-bitfields"
fi
fi
fi
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "OPENBSD" ] && [ "$os" != "MINGW" ] && [ "$os" != "OSX" ] && [ "$os" != "OS2" ]; then
LIBS="$LIBS -lpthread"
fi
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "MINGW" ] && [ "$os" != "MORPHOS" ] && [ "$os" != "OSX" ] && [ "$os" != "DOS" ] && [ "$os" != "WINCE" ] && [ "$os" != "PSP" ] && [ "$os" != "OS2" ]; then
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.libdl -x c++ - -ldl"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.libdl -x c++ - -ldl 2> /dev/null << EOL
#include
int main() {
Dl_info info;
return dladdr(0, &info);
}
EOL
ret=$?
rm -f tmp.config.libdl
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking libdl... no"
else
log 1 "checking libdl... found"
LIBS="$LIBS -ldl"
CFLAGS="$CFLAGS -DWITH_DL"
fi
LIBBFD_LIBS=
if [ "$with_libbfd" = "1" ]; then
if test_compile_libbfd "-lbfd -lz"; then
LIBBFD_LIBS="-lbfd -lz"
elif test_compile_libbfd "-lbfd -liberty -lz"; then
LIBBFD_LIBS="-lbfd -liberty -lz"
elif test_compile_libbfd "-lbfd -liberty -lintl -lz"; then
LIBBFD_LIBS="-lbfd -liberty -lintl -lz"
fi
if [ -n "$LIBBFD_LIBS" ]; then
log 1 "checking libbfd... found"
LIBS="$LIBS $LIBBFD_LIBS"
CFLAGS="$CFLAGS -DWITH_BFD"
else
log 1 "checking libbfd... no"
fi
fi
HAVE_GDB_DBG=
if [ "$with_self_gdb_debug" = "1" ]; then
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.dbggdb -x c++ -"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.dbggdb -x c++ - 2> /dev/null << EOL
#include
#include
#include
#include
#include
#include
int main() {
pid_t tid = syscall(SYS_gettid);
int status;
waitpid((pid_t) 0, &status, 0);
return WIFEXITED(status) && WEXITSTATUS(status);
}
EOL
ret=$?
rm -f tmp.config.dbggdb
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking dbg gdb... no"
else
log 1 "checking dbg gdb... found"
CFLAGS="$CFLAGS -DWITH_DBG_GDB"
HAVE_GDB_DBG=1
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.dbggdbprctl -x c++ -"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.dbggdbprctl -x c++ - 2> /dev/null << EOL
#include
int main() {
return prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);
}
EOL
ret=$?
rm -f tmp.config.dbggdbprctl
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking dbg gdb (prctl)... no"
else
log 1 "checking dbg gdb (prctl)... found"
CFLAGS="$CFLAGS -DWITH_PRCTL_PT"
fi
fi
fi
if [ -n "$LIBBFD_LIBS" -o -n "$HAVE_GDB_DBG" ]; then
if [ $enable_debug -lt 1 ] && [ "$with_bfd_extra_debug" = "1" ]; then
if [ -n "`basename "$cc_host" | grep "clang" 2>/dev/null`" ]; then
CFLAGS="$CFLAGS -gline-tables-only"
else
CFLAGS="$CFLAGS -g1"
fi
fi
fi
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.sigaction -x c++ - -ldl"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.sigaction -x c++ - -ldl 2> /dev/null << EOL
#include
void *addr;
int code;
void handler(int sig, siginfo_t *si, void *context) {
addr = si->si_addr;
code = si->si_code;
}
int main() {
struct sigaction sa;
sa.sa_flags = SA_SIGINFO;
sigemptyset(&sa.sa_mask);
sa.sa_sigaction = handler;
sigaction(SIGSEGV, &sa, 0);
return 0;
}
EOL
ret=$?
rm -f tmp.config.sigaction
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking sigaction... no"
else
log 1 "checking sigaction... found"
CFLAGS="$CFLAGS -DWITH_SIGACTION"
fi
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.ucontext -x c++ - -ldl"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.ucontext -x c++ - -ldl 2> /dev/null << EOL
#include
int main() {
ucontext_t context;
#if defined(__x86_64__)
void *ptr = (void *) context.uc_mcontext.gregs[REG_RIP];
#elif defined(__i386)
void *ptr = (void *) context.uc_mcontext.gregs[REG_EIP];
#else
#error Unknown arch
#endif
return 0;
}
EOL
ret=$?
rm -f tmp.config.ucontext
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking ucontext... no"
else
log 1 "checking ucontext... found"
CFLAGS="$CFLAGS -DWITH_UCONTEXT"
fi
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.sigaltstack -x c++ - -ldl"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.sigaltstack -x c++ - -ldl 2> /dev/null << EOL
#include
#include
int main() {
stack_t ss;
ss.ss_sp = calloc(SIGSTKSZ, 1);
ss.ss_size = SIGSTKSZ;
ss.ss_flags = 0;
sigaltstack(&ss, nullptr);
return 0;
}
EOL
ret=$?
rm -f tmp.config.sigaltstack
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking sigaltstack... no"
else
log 1 "checking sigaltstack... found"
CFLAGS="$CFLAGS -DWITH_SIGALTSTACK"
fi
fi
if [ "$os" = "MINGW" ]; then
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.dbghelp -x c++ -"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.dbghelp -x c++ - 2> /dev/null << EOL
#include
#include
int main() {
STACKFRAME64 frame;
IMAGEHLP_SYMBOL64 *sym_info;
IMAGEHLP_MODULE64 module;
IMAGEHLP_LINE64 line;
return 0;
}
EOL
ret=$?
rm -f tmp.config.dbghelp
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking dbghelp... no"
else
log 1 "checking dbghelp... found"
CFLAGS="$CFLAGS -DWITH_DBGHELP"
if [ "$with_libbfd" = "1" ]; then
test_compile_libbfd "-lbfd -liberty -lintl -lz"
if [ $? -ne 0 ]; then
log 1 "checking libbfd... no"
else
log 1 "checking libbfd... found"
LIBS="$LIBS -lbfd -liberty -lintl -lz"
CFLAGS="$CFLAGS -DWITH_BFD"
if [ $enable_debug -lt 1 ] && [ "$with_bfd_extra_debug" = "1" ]; then
CFLAGS="$CFLAGS -g1"
fi
fi
fi
fi
fi
log 2 "executing $cc_host $CFLAGS $LDFLAGS $STATIC_FLAGS -o tmp.config.bitmath-builtins -x c++ -"
"$cc_host" $CFLAGS $LDFLAGS $STATIC_FLAGS -o tmp.config.bitmath-builtins -x c++ - 2> /dev/null << EOL
int main() {
return __builtin_popcountll(__builtin_popcountl(__builtin_popcount(__builtin_ctz(1))));
}
EOL
ret=$?
rm -f tmp.config.bitmath-builtins
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking bitmath builtins... no"
else
log 1 "checking bitmath builtins... found"
CFLAGS="$CFLAGS -DWITH_BITMATH_BUILTINS"
fi
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "MORPHOS" ] && [ "$os" != "OSX" ] && [ "$os" != "DOS" ] && [ "$os" != "WINCE" ] && [ "$os" != "PSP" ] && [ "$os" != "OS2" ]; then
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.demangle -x c++ - -lstdc++"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV -o tmp.config.demangle -x c++ - -lstdc++ 2> /dev/null << EOL
#include
int main() {
int status = -1;
char *demangled = abi::__cxa_demangle("test", 0, 0, &status);
return 0;
}
EOL
ret=$?
rm -f tmp.config.demangle
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking abi::__cxa_demangle... no"
else
log 1 "checking abi::__cxa_demangle... found"
CFLAGS="$CFLAGS -DWITH_DEMANGLE"
fi
fi
if [ "$os" != "CYGWIN" ] && [ "$os" != "HAIKU" ] && [ "$os" != "MINGW" ]; then
LIBS="$LIBS -lc"
fi
if [ "$os" = "OPENBSD" ]; then
LIBS="$LIBS -pthread"
fi
if [ "$os" = "OSX" ]; then
LDFLAGS="$LDFLAGS -framework Cocoa"
# Add macports include dir which is not always set a default system dir. This avoids zillions of bogus warnings.
CFLAGS="$CFLAGS -isystem/opt/local/include"
if [ "$enable_dedicated" = "0" ] && ([ "$cpu_type" = "32" ] || [ "$enable_universal" != "0" ]); then
LIBS="$LIBS -framework QuickTime"
else
CFLAGS="$CFLAGS -DNO_QUICKTIME"
fi
if [ "$enable_universal" = "0" ]; then
# Universal builds set this elsewhere
CFLAGS="$OSX_SYSROOT $CFLAGS"
LDFLAGS="$OSX_LD_SYSROOT $LDFLAGS"
fi
if [ "$with_self_lldb_debug" = "0" ]; then
log 1 "using dbg lldb... no"
CFLAGS="$CFLAGS -DWITHOUT_DBG_LLDB"
else
log 1 "using dbg lldb... yes"
if [ $enable_debug -lt 1 ]; then
if [ -n "`"$cc_host" --version | head -n1 | grep "clang" 2>/dev/null`" ]; then
CFLAGS="$CFLAGS -gline-tables-only"
else
CFLAGS="$CFLAGS -g1"
fi
fi
fi
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.ucontext -x c++ - -ldl"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.ucontext -x c++ - -ldl 2> /dev/null << EOL
#include
int main() {
ucontext_t context;
#if defined(__x86_64__)
void *ptr = (void *) context.uc_mcontext->__ss.__rip;
#elif defined(__i386)
void *ptr = (void *) context.uc_mcontext->__ss.__rip;
#else
#error Unknown arch
#endif
return 0;
}
EOL
ret=$?
rm -f tmp.config.ucontext
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking ucontext... no"
else
log 1 "checking ucontext... found"
CFLAGS="$CFLAGS -DWITH_UCONTEXT"
fi
log 2 "executing $cc_host $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.sigaltstack -x c++ - -ldl"
"$cc_host" $CFLAGS $CFLAGS_ENV $LDFLAGS $LDFLAGS_ENV $STATIC_FLAGS -o tmp.config.sigaltstack -x c++ - -ldl 2> /dev/null << EOL
#include
#include
#include
int main() {
pthread_t self = pthread_self();
void *stacktop = pthread_get_stackaddr_np(self);
size_t stack_size = pthread_get_stacksize_np(self);
stack_t ss;
ss.ss_sp = calloc(SIGSTKSZ, 1);
ss.ss_size = SIGSTKSZ;
ss.ss_flags = 0;
sigaltstack(&ss, NULL);
return 0;
}
EOL
ret=$?
rm -f tmp.config.sigaltstack
log 2 " exit code $ret"
if [ $ret -ne 0 ]; then
log 1 "checking sigaltstack... no"
else
log 1 "checking sigaltstack... found"
CFLAGS="$CFLAGS -DWITH_SIGALTSTACK"
fi
fi
if [ "$os" = "HAIKU" ]; then
LIBS="$LIBS -lmidi -lbe"
fi
# Most targets act like UNIX, just with some additions
if [ "$os" = "HAIKU" ] || [ "$os" = "OSX" ] || [ "$os" = "FREEBSD" ] || [ "$os" = "DRAGONFLY" ] || [ "$os" = "OPENBSD" ] || [ "$os" = "NETBSD" ] || [ "$os" = "HPUX" ] || [ "$os" = "SUNOS" ] || [ "$os" = "OS2" ]; then
CFLAGS="$CFLAGS -DUNIX"
fi
# And others like Windows
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
CFLAGS="$CFLAGS -DWIN"
fi
if [ -n "$allegro_config" ]; then
CFLAGS="$CFLAGS -DWITH_ALLEGRO"
CFLAGS="$CFLAGS `$allegro_config --cflags`"
if [ "$os" != "MINGW" ] && [ "$os" != "CYGWIN" ]; then
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$allegro_config --static --libs`"
else
LIBS="$LIBS `$allegro_config --libs`"
fi
fi
fi
if [ -n "$sdl_config" ]; then
CFLAGS="$CFLAGS -DWITH_SDL"
# SDL must not add _GNU_SOURCE as it breaks many platforms
CFLAGS="$CFLAGS `$sdl_config --cflags | sed 's@-D_GNU_SOURCE[^ ]*@@'`"
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$sdl_config --static --libs`"
else
LIBS="$LIBS `$sdl_config --libs`"
fi
fi
if [ "$with_cocoa" != "0" ]; then
CFLAGS="$CFLAGS -DWITH_COCOA"
LIBS="$LIBS -F/System/Library/Frameworks -framework Cocoa -framework Carbon -framework AudioUnit -framework AudioToolbox"
if [ "$enable_cocoa_quartz" != "0" ]; then
CFLAGS="$CFLAGS -DENABLE_COCOA_QUARTZ"
fi
if [ "$enable_cocoa_quickdraw" != "0" ]; then
CFLAGS="$CFLAGS -DENABLE_COCOA_QUICKDRAW"
fi
fi
if [ "$with_zlib" != "0" ]; then
CFLAGS="$CFLAGS -DWITH_ZLIB"
CFLAGS="$CFLAGS `$zlib_config --cflags | tr '\n\r' ' '`"
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$zlib_config --libs --static | tr '\n\r' ' '`"
else
LIBS="$LIBS `$zlib_config --libs | tr '\n\r' ' '`"
fi
fi
if [ -n "$lzma_config" ]; then
CFLAGS="$CFLAGS -DWITH_LIBLZMA"
CFLAGS="$CFLAGS `$lzma_config --cflags | tr '\n\r' ' '`"
if [ "$enable_static" != "0" ]; then
CFLAGS="$CFLAGS -DLZMA_API_STATIC"
LIBS="$LIBS `$lzma_config --libs --static | tr '\n\r' ' '`"
else
LIBS="$LIBS `$lzma_config --libs | tr '\n\r' ' '`"
fi
fi
if [ "$with_lzo2" != "0" ]; then
if [ "$enable_static" != "0" ] && [ "$os" != "OSX" ]; then
LIBS="$LIBS $lzo2"
else
LIBS="$LIBS -llzo2"
fi
CFLAGS="$CFLAGS -DWITH_LZO"
fi
if [ -n "$xdg_basedir_config" ]; then
CFLAGS="$CFLAGS -DWITH_XDG_BASEDIR"
CFLAGS="$CFLAGS `$xdg_basedir_config --cflags | tr '\n\r' ' '`"
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$xdg_basedir_config --libs --static | tr '\n\r' ' '`"
else
LIBS="$LIBS `$xdg_basedir_config --libs | tr '\n\r' ' '`"
fi
fi
# 64bit machines need -D_SQ64
if [ "$cpu_type" = "64" ] && [ "$enable_universal" = "0" ]; then
CFLAGS="$CFLAGS -D_SQ64"
fi
CFLAGS="$CFLAGS -I$SCRIPT_SRC_DIR"
if [ -n "$png_config" ]; then
CFLAGS="$CFLAGS -DWITH_PNG"
CFLAGS="$CFLAGS `$png_config --cflags | tr '\n\r' ' '`"
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$png_config --libs --static | tr '\n\r' ' '`"
else
LIBS="$LIBS `$png_config --libs | tr '\n\r' ' '`"
fi
fi
if [ -n "$fontconfig_config" ]; then
CFLAGS="$CFLAGS -DWITH_FONTCONFIG"
CFLAGS="$CFLAGS `$fontconfig_config --cflags | tr '\n\r' ' '`"
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$fontconfig_config --libs --static | tr '\n\r' ' '`"
else
LIBS="$LIBS `$fontconfig_config --libs | tr '\n\r' ' '`"
fi
fi
if [ -n "$freetype_config" ]; then
CFLAGS="$CFLAGS -DWITH_FREETYPE"
CFLAGS="$CFLAGS `$freetype_config --cflags | tr '\n\r' ' '`"
if [ "$enable_static" != "0" ]; then
LIBS="$LIBS `$freetype_config --libs --static | tr '\n\r' ' '` -lfreetype"
else
LIBS="$LIBS `$freetype_config --libs | tr '\n\r' ' '`"
fi
fi
if [ -n "$icu_layout_config" ]; then
CFLAGS="$CFLAGS -DWITH_ICU_LX"
CFLAGS="$CFLAGS `$icu_layout_config --cflags | tr '\n\r' ' '`"
if [ "$static_icu" != "0" ]; then
LIBS="$LIBS `$icu_layout_config --libs --static | tr '\n\r' ' ' | sed s/-licu/-lsicu/g`"
else
LIBS="$LIBS `$icu_layout_config --libs | tr '\n\r' ' '`"
fi
fi
if [ -n "$icu_sort_config" ]; then
CFLAGS="$CFLAGS -DWITH_ICU_I18N"
CFLAGS="$CFLAGS `$icu_sort_config --cflags | tr '\n\r' ' '`"
if [ "$static_icu" != "0" ]; then
LIBS="$LIBS `$icu_sort_config --libs --static | tr '\n\r' ' ' | sed s/-licu/-lsicu/g`"
else
LIBS="$LIBS `$icu_sort_config --libs | tr '\n\r' ' '`"
fi
fi
if [ "$with_uniscribe" != "0" ]; then
CFLAGS="$CFLAGS -DWITH_UNISCRIBE"
LIBS="$LIBS -lusp10"
fi
if [ "$with_direct_music" != "0" ]; then
CFLAGS="$CFLAGS -DWIN32_ENABLE_DIRECTMUSIC_SUPPORT"
# GCC 4.0+ doesn't like the DirectX includes (gives tons of
# warnings on it we won't be able to fix). For now just
# suppress those warnings.
if [ $cc_version -ge 400 ]; then
CFLAGS="$CFLAGS -Wno-non-virtual-dtor"
fi
fi
if [ "$with_xaudio2" != "0" ]; then
CFLAGS="$CFLAGS -DWITH_XAUDIO2"
fi
if [ -n "$fluidsynth" ]; then
LIBS="$LIBS -lfluidsynth"
CFLAGS="$CFLAGS -DFLUIDSYNTH"
fi
if [ "$with_iconv" != "0" ]; then
CFLAGS="$CFLAGS -DWITH_ICONV"
if [ "$link_to_iconv" = "yes" ]; then
LIBS="$LIBS -liconv"
if [ "$with_iconv" != "2" ]; then
CFLAGS="$CFLAGS -I$with_iconv/include"
LIBS="$LIBS -L$with_iconv/lib"
fi
fi
if [ "$os" != "OSX" ] && [ "$have_non_const_iconv" != "no" ]; then
CFLAGS="$CFLAGS -DHAVE_NON_CONST_ICONV"
fi
fi
if [ -n "$with_midi" ]; then
CFLAGS="$CFLAGS -DEXTERNAL_PLAYER=\\\\\"$with_midi\\\\\""
fi
if [ -n "$with_midi_arg" ]; then
CFLAGS="$CFLAGS -DMIDI_ARG=\\\\\"$with_midi_arg\\\\\""
fi
if [ "$enable_dedicated" != "0" ]; then
CFLAGS="$CFLAGS -DDEDICATED"
fi
if [ "$enable_unicode" != "0" ]; then
CFLAGS="$CFLAGS -DUNICODE -D_UNICODE"
fi
if [ "$os" = "HAIKU" ]; then
LDFLAGS="$LDFLAGS -lnetwork"
fi
if [ "$os" = "SUNOS" ]; then
LDFLAGS="$LDFLAGS -lnsl -lsocket"
fi
if [ "$enable_static" != "0" ]; then
# OSX can't handle -static in LDFLAGS
if [ "$os" != "OSX" ]; then
LDFLAGS="$LDFLAGS -static"
fi
fi
if [ "$enable_assert" = "0" ]; then
CFLAGS="$CFLAGS -DNDEBUG"
CFLAGS_BUILD="$CFLAGS_BUILD -DNDEBUG"
fi
if [ "$enable_desync_debug" != "0" ]; then
CFLAGS="$CFLAGS -DRANDOM_DEBUG"
fi
if [ "$enable_osx_g5" != "0" ]; then
CFLAGS="$CFLAGS -mcpu=G5 -mpowerpc64 -mtune=970 -mcpu=970 -mpowerpc-gpopt"
fi
if [ -n "$personal_dir" ]; then
CFLAGS="$CFLAGS -DWITH_PERSONAL_DIR -DPERSONAL_DIR=\\\\\"$personal_dir\\\\\""
fi
if [ -n "$shared_dir" ]; then
CFLAGS="$CFLAGS -DWITH_SHARED_DIR -DSHARED_DIR=\\\\\"$shared_dir\\\\\""
fi
CFLAGS="$CFLAGS -DGLOBAL_DATA_DIR=\\\\\"$prefix_dir/$data_dir\\\\\""
if [ "$enable_lto" != "0" ]; then
lto_build=`echo "$FEATURES_BUILD" | grep "lto"`
lto_host=`echo "$FEATURES" | grep "lto"`
if [ -z "$lto_build$lto_host" ]; then
log 1 "WARNING: you enabled LTO/IPO, but neither build nor host compiler supports it"
log 1 "WARNING: LTO/IPO has been disabled"
fi
if [ -n "$lto_build" ]; then
LDFLAGS_BUILD="$LDFLAGS_BUILD $CFLAGS_BUILD $CXXFLAGS_BUILD"
fi
if [ -n "$lto_host" ]; then
LDFLAGS="$LDFLAGS $CFLAGS $CXXFLAGS"
fi
fi
# All flags to be extended via the env
CFLAGS_BUILD="$CFLAGS_BUILD $CFLAGS_BUILD_ENV"
CXXFLAGS_BUILD="$CXXFLAGS_BUILD $CXXFLAGS_BUILD_ENV"
LDFLAGS_BUILD="$LDFLAGS_BUILD $LDFLAGS_BUILD_ENV"
CFLAGS="$CFLAGS $CFLAGS_ENV"
CXXFLAGS="$CXXFLAGS $CXXFLAGS_ENV"
LDFLAGS="$LDFLAGS $LDFLAGS_ENV"
log 1 "using CFLAGS_BUILD... $CFLAGS_BUILD"
log 1 "using CXXFLAGS_BUILD... $CXXFLAGS_BUILD"
log 1 "using LDFLAGS_BUILD... $LDFLAGS_BUILD"
log 1 "using CFLAGS... $CFLAGS"
log 1 "using CXXFLAGS... $CXXFLAGS"
log 1 "using LDFLAGS... $LIBS $LDFLAGS"
# Makedepend doesn't like something like: -isysroot /OSX/blabla
# so convert it to: -isysroot -OSX/blabla. makedepend just ignores
# any - command it doesn't know, so we are pretty save.
# Lovely hackish, not?
# Btw, this almost always comes from outside the configure, so it is
# not something we can control.
# Also make makedepend aware of compiler's built-in defines.
if [ "$with_makedepend" != "0" ] || [ "$enable_builtin_depend" != "0" ]; then
# Append CXXFLAGS possibly containing -std=c++0x
cflags_makedep="`echo | $cxx_host $CXXFLAGS -E -x c++ -dM - | sed 's@.define @-D@g;s@ .*@ @g;s@(.*)@@g' | tr -d '\r\n'`"
# Please escape ALL " within ` because e.g. "" terminates the string in some sh implementations
cflags_makedep="$cflags_makedep `echo \"$CFLAGS\" \"$CXXFLAGS\" | sed 's@ /@ -@g;s@-I[ ]*[^ ]*@@g;s@[ ]*-[^D][^ ]*@@g'`"
else
makedepend=""
fi
if [ "$with_distcc" != "0" ]; then
cc_host="$distcc $cc_host"
cxx_host="$distcc $cxx_host"
log 1 ""
log 1 " NOTICE: remind yourself to use 'make -jN' to make use of distcc"
log 1 ""
fi
if [ "$with_ccache" != "0" ]; then
cc_host="$ccache $cc_host"
cxx_host="$ccache $cxx_host"
fi
}
check_compiler() {
# Params:
# $1 - Type for message (build / host)
# $2 - What to fill with the found compiler
# $3 - System to try
# $4 - Compiler to try
# $5 - Env-setting to try
# $6 - GCC alike to try (array)
# $7 - CC alike to try
# $8 - "0" gcc, "1" g++, "2" windres, "3" strip, "4" lipo
# $9 - What the command is to check for
if [ -n "$4" ]; then
# Check for manual compiler
machine=`$4 $9 2>/dev/null`
ret=$?
eval "$2=\"$4\""
log 2 "executing $4 $9"
log 2 " returned $machine"
log 2 " exit code $ret"
if ( [ -z "$machine" ] && [ "$8" != "3" ] ) || [ "$ret" != "0" ]; then
log 1 "checking $1... $4 not found"
log 1 "the selected binary doesn't seem to be a $6 binary"
exit 1
fi
elif [ -n "$3" ]; then
# Check for system
for val in $6; do
if [ -z "$6" ]; then
compiler="$3"
else
compiler="$3-$val"
fi
machine=`eval $compiler $9 2>/dev/null`
ret=$?
eval "$2=\"$compiler\""
log 2 "executing $compiler $9"
log 2 " returned $machine"
log 2 " exit code $ret"
if [ -n "$machine" ] && [ "$ret" = "0" ]; then
break
fi
done
if ( [ -z "$machine" ] && [ "$8" != "3" ] ) || [ "$ret" != "0" ]; then
if [ -z "$5" ]; then
log 1 "checking $1... $compiler not found"
log 1 "I couldn't detect any '$6' binary for $3"
exit 1
else
compiler="$3-$5"
fi
machine=`eval $compiler $9 2>/dev/null`
ret=$?
eval "$2=\"$compiler\""
log 2 "executing $compiler $9"
log 2 " returned $machine"
log 2 " exit code $ret"
if ( [ -z "$machine" ] && [ "$8" != "3" ] ) || [ "$ret" != "0" ]; then
log 1 "checking $1... $compiler not found"
log 1 "I couldn't detect any $5 binary for $3"
exit 1
fi
fi
if [ "$machine" != "$3" ] && ( [ "$8" = "0" ] || [ "$8" = "1" ] ); then
log 1 "checking $1... expected $3, found $machine"
log 1 "the compiler suggests it doesn't build code for the machine you specified"
exit 1
fi
else
# Nothing given, autodetect
if [ -n "$5" ]; then
machine=`$5 $9 2>/dev/null`
ret=$?
eval "$2=\"$5\""
log 2 "executing $5 $9"
log 2 " returned $machine"
log 2 " exit code $ret"
# The user defined a GCC that doesn't reply to $9.. abort
if ( [ -z "$machine" ] && [ "$8" != "3" ] ) || [ "$ret" != "0" ]; then
log 1 "checking $1... $5 unusable"
log 1 "the CC environment variable is set, but it doesn't seem to be a '$6' binary"
log 1 "please redefine the CC/CXX environment to a $6 binary"
exit 1
fi
else
log 2 "checking $1... CC/CXX not set (skipping)"
for val in $6; do
# No $5, so try next item in '$6'
machine=`$val $9 2>/dev/null`
ret=$?
eval "$2=\"$val\""
log 2 "executing $val $9"
log 2 " returned $machine"
log 2 " exit code $ret"
if [ -n "$machine" ] && [ "$ret" = "0" ]; then
break
fi
done
if ( [ -z "$machine" ] && [ "$8" != "3" ] ) || [ "$ret" != "0" ]; then
# Maybe '$7'?
machine=`$7 $9 2>/dev/null`
ret=$?
eval "$2=\"$7\""
log 2 "executing $7 $9"
log 2 " returned $machine"
log 2 " exit code $ret"
# All failed, abort
if [ -z "$machine" ]; then
log 1 "checking $1... $6 not found"
log 1 "I couldn't detect any '$6' binary on your system"
log 1 "please define the CC/CXX environment to where it is located"
exit 1
fi
fi
fi
fi
if [ "$8" != "0" ]; then
eval "res=\$$2"
log 1 "checking $1... $res"
else
log 1 "checking $1... $machine"
fi
}
check_build() {
check_compiler "build system type" "cc_build" "$build" "$cc_build" "$CC" "$default_cc" "cc" "0" "-dumpmachine"
}
check_host() {
# By default the host is the build
if [ -z "$host" ]; then host="$build"; fi
check_compiler "host system type" "cc_host" "$host" "$cc_host" "$CC" "$default_cc" "cc" "0" "-dumpmachine"
}
check_cxx_build() {
check_compiler "build c++" "cxx_build" "$build" "$cxx_build" "$CXX" "$default_cxx" "c++" 1 "-dumpmachine"
}
check_cxx_host() {
# By default the host is the build
if [ -z "$host" ]; then host="$build"; fi
check_compiler "host c++" "cxx_host" "$host" "$cxx_host" "$CXX" "$default_cxx" "c++" 1 "-dumpmachine"
}
check_windres() {
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
check_compiler "host windres" "windres" "$host" "$windres" "$WINDRES" "windres" "windres" "2" "-V"
fi
}
check_strip() {
if [ "$os" = "OS2" ]; then
# OS2 via gcc is a bit weird.. stripping HAS to be done via emxbind, which is via gcc directly
log 1 "checking host strip... using gcc -s option"
elif [ "$os" = "OSX" ]; then
# Most targets have -V in strip, to see if they exists... OSX doesn't.. so execute something
echo "int main(int argc, char *argv[]) { }" > strip.test.c
$cxx_host strip.test.c -o strip.test
check_compiler "host strip" "strip" "$host" "$strip" "$STRIP" "strip" "strip" "3" "strip.test"
rm -f strip.test.c strip.test
else
check_compiler "host strip" "strip" "$host" "$strip" "$STRIP" "strip" "strip" "3" "-V"
fi
}
check_lipo() {
if [ "$os" = "OSX" ] && [ "$enable_universal" != "0" ]; then
echo "int main(int argc, char *argv[]) { }" > lipo.test.c
$cxx_host lipo.test.c -o lipo.test
check_compiler "host lipo" "lipo" "$host" "$lipo" "$LIPO" "lipo" "lipo" "4" "-info lipo.test"
rm -f lipo.test.c lipo.test
fi
}
check_osx_sdk() {
local sysroot=""
if [ -n "$1" ]; then
if echo "$1" | grep -q / ; then
# Seems to be a file system path
osx_sdk_path="$1"
else
osx_sdk_path="/Developer/SDKs/MacOSX$1.sdk"
fi
if [ ! -d "$osx_sdk_path" ]; then
# No directory, not present or garbage
return 1
fi
# Set minimum version to 10.4 as that's when kCGBitmapByteOrder32Host was introduced
sysroot="-isysroot $osx_sdk_path -Wl,-syslibroot,$osx_sdk_path -mmacosx-version-min=10.4"
fi
cat > tmp.osx.mm << EOF
#include
int main() {
kCGBitmapByteOrder32Host;
return 0;
}
EOF
execute="$cxx_host $sysroot $CFLAGS tmp.osx.mm -framework Cocoa -o tmp.osx 2>&1"
eval $execute > /dev/null
ret=$?
log 2 "executing $execute"
log 2 " exit code $ret"
rm -f tmp.osx.mm tmp.osx
return $ret
}
check_direct_music() {
echo "
#include
#include
#include
int main(int argc, char *argv[]) { }" > direct_music.test.c
$cxx_host $CFLAGS direct_music.test.c -o direct_music.test 2> /dev/null
res=$?
rm -f direct_music.test.c direct_music.test
if [ "$res" != "0" ]; then
if [ "$with_direct_music" != "1" ]; then
log 1 "configure: error: direct-music is not available on this system"
exit 1
fi
with_direct_music="0"
log 1 "checking direct-music... not found"
else
log 1 "checking direct-music... found"
fi
}
check_xaudio2() {
echo "
#include
#undef NTDDI_VERSION
#undef _WIN32_WINNT
#define NTDDI_VERSION NTDDI_WIN8
#define _WIN32_WINNT _WIN32_WINNT_WIN8
#include
int main(int argc, char *argv[]) { }" > xaudio2.test.c
$cxx_host $CFLAGS xaudio2.test.c -o xaudio2.test 2> /dev/null
res=$?
rm -f xaudio2.test.c xaudio2.test
if [ "$res" != "0" ]; then
if [ "$with_xaudio2" != "1" ]; then
log 1 "configure: error: xaudio2 is not available on this system"
exit 1
fi
with_xaudio2="0"
log 1 "checking xaudio2... not found"
else
log 1 "checking xaudio2... found"
fi
}
check_makedepend() {
if [ "$enable_builtin_depend" != "0" ]; then
with_makedepend="0"
fi
if [ "$with_makedepend" = "0" ]; then
log 1 "checking makedepend... disabled"
return
fi
if [ "$with_makedepend" = "1" ] || [ "$with_makedepend" = "2" ]; then
makedepend="makedepend"
else
makedepend="$with_makedepend"
fi
rm -f makedepend.tmp
touch makedepend.tmp
res=`$makedepend -fmakedepend.tmp 2>/dev/null`
res=$?
log 2 "executing $makedepend -f makedepend.tmp"
log 2 " returned `cat makedepend.tmp`"
log 2 " exit code $ret"
if [ ! -s makedepend.tmp ]; then
rm -f makedepend.tmp makedepend.tmp.bak
if [ "$with_makedepend" = "2" ]; then
log 1 "checking makedepend... not found"
log 1 "I couldn't detect any makedepend on your system"
log 1 "please locate it via --makedepend=[binary]"
exit 1
elif [ "$with_makedepend" != "1" ]; then
log 1 "checking makedepend... $makedepend not found"
log 1 "the selected file doesn't seem to be a valid makedepend binary"
exit 1
else
log 1 "checking makedepend... not found"
with_makedepend="0"
return
fi
fi
rm -f makedepend.tmp makedepend.tmp.bak
log 1 "checking makedepend... $makedepend"
}
check_version() {
# $1 - requested version (major.minor)
# $2 - version we got (major.minor)
if [ -z "$2" ]; then
return 0
fi
req_major=`echo $1 | cut -d. -f1`
got_major=`echo $2 | cut -d. -f1`
if [ $got_major -lt $req_major ]; then
return 0
elif [ $got_major -gt $req_major ]; then
return 1
fi
req_minor=`echo $1 | cut -d. -f2`
got_minor=`echo $2 | cut -d. -f2`
if [ $got_minor -lt $req_minor ]; then
return 0
fi
return 1
}
detect_awk() {
# Not all awks allow gsub(), so we test for that here! It is in fact all we need...
# These awks are known to work. Test for them explicit
awks="gawk mawk nawk"
awk_prefix="echo \"a.c b.c c.c\" | tr ' ' \\\\n | "
awk_param="' { ORS = \" \" } /\.c$/ { gsub(\".c$\", \".o\", \$0); print \$0; }' 2>/dev/null"
awk_result="a.o b.o c.o "
log 2 "Detecing awk..."
log 2 "Trying: $awk_prefix $awk $awk_param"
res=`eval $awk_prefix $awk $awk_param`
log 2 "Result: '$res'"
if [ "$res" != "$awk_result" ] && [ "$awk" = "awk" ]; then
# User didn't supply his own awk, so try to detect some other known working names for an awk
for awk in $awks; do
log 2 "Trying: $awk_prefix $awk $awk_param"
res=`eval $awk_prefix $awk $awk_param`
log 2 "Result: '$res'"
if [ "$res" = "$awk_result" ]; then break; fi
done
if [ "$res" != "$awk_result" ]; then
log 1 "checking awk... not found"
log 1 "configure: error: no awk found"
log 1 "configure: error: please install one of the following: $awks"
exit 1
fi
fi
if [ "$res" != "$awk_result" ]; then
log 1 "checking awk... not found"
log 1 "configure: error: you supplied '$awk' but it doesn't seem a valid gawk or mawk"
exit 1
fi
log 1 "checking awk... $awk"
}
detect_os() {
if [ "$os" = "DETECT" ]; then
# Detect UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HPUX, SUNOS, CYGWIN, MINGW, and OS2
# Try first via dumpmachine, then via uname
os=`echo "$host" | tr '[A-Z]' '[a-z]' | $awk '
/linux/ { print "UNIX"; exit}
/darwin/ { print "OSX"; exit}
/freebsd/ { print "FREEBSD"; exit}
/dragonfly/ { print "DRAGONFLY"; exit}
/openbsd/ { print "OPENBSD"; exit}
/netbsd/ { print "NETBSD"; exit}
/hp-ux/ { print "HPUX"; exit}
/haiku/ { print "HAIKU"; exit}
/sunos/ { print "SUNOS"; exit}
/solaris/ { print "SUNOS"; exit}
/cygwin/ { print "CYGWIN"; exit}
/mingw/ { print "MINGW"; exit}
/os2/ { print "OS2"; exit}
'`
if [ -z "$os" ]; then
os=`LC_ALL=C uname | tr '[A-Z]' '[a-z]' | $awk '
/linux/ { print "UNIX"; exit}
/darwin/ { print "OSX"; exit}
/freebsd/ { print "FREEBSD"; exit}
/dragonfly/ { print "DRAGONFLY"; exit}
/openbsd/ { print "OPENBSD"; exit}
/netbsd/ { print "NETBSD"; exit}
/hp-ux/ { print "HPUX"; exit}
/haiku/ { print "HAIKU"; exit}
/sunos/ { print "SUNOS"; exit}
/cygwin/ { print "CYGWIN"; exit}
/mingw/ { print "MINGW"; exit}
/os\/2/ { print "OS2"; exit}
/gnu/ { print "UNIX"; exit}
'`
fi
if [ -z "$os" ]; then
log 1 "detecting OS... none detected"
log 1 "I couldn't detect your OS. Please use --os=OS to force one"
log 1 "Allowed values are: UNIX, OSX, FREEBSD, DRAGONFLY, OPENBSD, NETBSD, HPUX, HAIKU, SUNOS, CYGWIN, MINGW, and OS2"
exit 1
fi
log 1 "detecting OS... $os"
else
log 1 "forcing OS... $os"
fi
if [ "$os" = "OSX" ]; then
default_cc="clang gcc"
default_cxx="clang++ g++"
else
default_cc="gcc clang"
default_cxx="g++ clang++"
fi
}
detect_allegro() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_allegro" = "0" ]; then
log 1 "checking Allegro... disabled"
allegro_config=""
return 0
fi
if [ "$with_allegro" = "2" ] && [ "$with_cocoa" = "2" ]; then
log 1 "configure: error: it is impossible to compile both Allegro and COCOA"
log 1 "configure: error: please deselect one of them and try again"
exit 1
fi
if [ "$with_allegro" = "2" ] && [ "$enable_dedicated" != "0" ]; then
log 1 "configure: error: it is impossible to compile a dedicated with Allegro"
log 1 "configure: error: please deselect one of them and try again"
exit 1
fi
if [ "$enable_dedicated" != "0" ]; then
log 1 "checking Allegro... dedicated server, skipping"
allegro_config=""
return 0
fi
# By default on OSX we don't use Allegro. The rest is auto-detect
if [ "$with_allegro" = "1" ] && [ "$os" = "OSX" ] && [ "$with_cocoa" != "0" ]; then
log 1 "checking Allegro... OSX, skipping"
allegro_config=""
return 0
fi
detect_pkg_config "$with_allegro" "allegro" "allegro_config" "4.4"
}
detect_sdl() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_sdl" = "0" ]; then
log 1 "checking SDL... disabled"
sdl_config=""
return 0
fi
if [ "$with_sdl" = "2" ] && [ "$with_cocoa" = "2" ]; then
log 1 "configure: error: it is impossible to compile both SDL and COCOA"
log 1 "configure: error: please deselect one of them and try again"
exit 1
fi
if [ "$with_sdl" = "2" ] && [ "$enable_dedicated" != "0" ]; then
log 1 "configure: error: it is impossible to compile a dedicated with SDL"
log 1 "configure: error: please deselect one of them and try again"
exit 1
fi
if [ "$enable_dedicated" != "0" ]; then
log 1 "checking SDL... dedicated server, skipping"
sdl_config=""
return 0
fi
# By default on OSX we don't use SDL. The rest is auto-detect
if [ "$with_sdl" = "1" ] && [ "$os" = "OSX" ] && [ "$with_cocoa" != "0" ]; then
log 1 "checking SDL... OSX, skipping"
sdl_config=""
return 0
fi
if [ "$os" = "OSX" ]; then
log 1 "WARNING: sdl is known to fail on some versions of Mac OS X"
log 1 "WARNING: with some hardware configurations. Use at own risk!"
sleep 5
fi
detect_pkg_config "$with_sdl" "sdl" "sdl_config" "1.2"
}
detect_osx_sdk() {
# Try to find the best SDK available. For a normal build this
# is currently the 10.5 SDK as this is needed to compile all
# optional code. Because such an executable won't run on 10.4
# or lower, also check for the 10.4u SDK when doing an universal
# build.
# Check for the 10.5 SDK, but try 10.6 if that fails
check_osx_sdk "10.5" || check_osx_sdk "10.6" || osx_sdk_path=""
if [ -z "$osx_sdk_path" ] || [ "$enable_universal" != "0" ]; then
# No better SDK or universal build enabled? Check 10.4u SDK as well
local old_sdk="$osx_sdk_path"
if check_osx_sdk "10.4u"; then
osx_sdk_104_path="$osx_sdk_path"
else
osx_sdk_104_path=""
fi
if [ -z "$old_sdk" ]; then
osx_sdk_path="$osx_sdk_104_path"
else
osx_sdk_path="$old_sdk"
fi
fi
if [ -z "$osx_sdk_path" ]; then
log 1 "Your system SDK is probably too old"
log 1 "Please install/upgrade your Xcode to >= 2.5"
exit 1
fi
}
detect_cocoa() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_cocoa" = "0" ]; then
log 1 "checking COCOA... disabled"
return 0
fi
if [ "$with_cocoa" = "2" ] && [ "$enable_dedicated" != "0" ]; then
log 1 "configure: error: it is impossible to compile a dedicated with COCOA"
log 1 "configure: error: please deselect one of them and try again"
exit 1
fi
if [ "$enable_dedicated" != "0" ]; then
log 1 "checking COCOA... dedicated server, skipping"
with_cocoa="0"
return 0
fi
# By default on OSX we use COCOA. The rest doesn't support it
if [ "$with_cocoa" = "1" ] && [ "$os" != "OSX" ]; then
log 1 "checking COCOA... not OSX, skipping"
with_cocoa="0"
return 0
fi
if [ "$os" != "OSX" ]; then
log 1 "checking COCOA... not OSX"
log 1 "configure: error: COCOA video driver is only supported for OSX"
exit 1
fi
log 1 "checking COCOA... found"
if [ "$enable_cocoa_quartz" != "0" ]; then
log 1 "checking whether to enable the Quartz window subdriver... yes"
else
log 1 "checking whether to enable the Quartz window subdriver... no"
fi
detect_quickdraw
}
detect_quickdraw() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$enable_cocoa_quickdraw" = "0" ]; then
log 1 "checking Quickdraw window subdriver... disabled"
return 0
fi
# Assume QuickDraw is available when doing an universal build
if [ "$enable_universal" != "0" ]; then
log 1 "checking Quickdraw window subdriver... found"
return 0
fi
# 64 bits doesn't have quickdraw
if [ "$cpu_type" = "64" ]; then
enable_cocoa_quickdraw="0"
log 1 "checking Quickdraw window subdriver... disabled (64 bits)"
return 0
fi
cat > tmp.osx.mm << EOF
#include
#import
int main(int argc, char *argv[]) { SetEmptyRgn(NULL); return 0; }
EOF
execute="$cxx_host $OSX_SYSROOT $OSX_LD_SYSROOT $CFLAGS -mmacosx-version-min=10.3 tmp.osx.mm -framework Cocoa -o tmp.osx 2>&1"
eval $execute > /dev/null
ret=$?
log 2 "executing $execute"
log 2 " exit code $ret"
rm -f tmp.osx.mm tmp.osx
if [ "$ret" != "0" ]; then
log 1 "checking Quickdraw window subdriver... not found"
# It was forced, so it should be found.
if [ "$enable_cocoa_quickdraw" != "1" ]; then
log 1 "configure: error: Quickdraw window driver could not be found"
exit 1
fi
enable_cocoa_quickdraw=0
return 0
fi
enable_cocoa_quickdraw=1
log 1 "checking Quickdraw window subdriver... found"
}
detect_library() {
# $1 - config-param ($with_zlib value)
# $2 - library name ('zlib', sets $zlib)
# $3 - static library name (libz.a)
# $4 - header directory ()
# $5 - header name (zlib.h)
# $6 - force static (if non-empty)
if [ -n "$6" ]; then force_static="1"; fi
# 0 means no, 1 is auto-detect, 2 is force
if [ "$1" = "0" ]; then
log 1 "checking $2... disabled"
eval "$2=\"\""
return 0
fi
log 2 "detecting $2"
if [ "$1" = "1" ] || [ "$1" = "" ] || [ "$1" = "2" ]; then
eval "$2=`ls -1 /usr/include/$4*.h 2>/dev/null | egrep \"\/$5\$\"`"
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /usr/include/$4$5... no"
eval "$2=`ls -1 /usr/local/include/$4*.h 2>/dev/null | egrep \"\/$5\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /usr/local/include/$4$5... no"
eval "$2=`ls -1 /mingw/include/$4*.h 2>/dev/null | egrep \"\/$5\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /mingw/include/$4$5... no"
eval "$2=`ls -1 /mingw$cpu_type/include/$4*.h 2>/dev/null | egrep \"\/$5\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /mingw$cpu_type/include/$4$5... no"
eval "$2=`ls -1 /opt/local/include/$4*.h 2>/dev/null | egrep \"\/$5\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /opt/local/include/$4$5... no"
fi
if [ -z "$res" ] && [ "$os" = "NETBSD" ]; then
eval "$2=`ls -1 /usr/pkg/include/$4*.h 2>/dev/null | egrep \"\/$5\$\"`"
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /usr/pkg/include/$4$5... no"
fi
fi
if [ -z "$res" ] && [ "$os" = "HAIKU" ]; then
if [ -z "$includeDir" ]; then
includeDir=`finddir B_SYSTEM_HEADERS_DIRECTORY`
fi
eval "$2=`ls -1 $includeDir/$4*.h 2>/dev/null | egrep \"\/$5\$\"`"
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying $includeDir/$4$5... no"
fi
fi
eval "res=\$$2"
if [ -n "$res" ] && ( [ -n "$force_static" ] || ( [ "$enable_static" != "0" ] && [ "$os" != "OSX" ] ) ); then
eval "res=\$$2"
log 2 " trying $res... found"
# Now find the static lib, if needed
eval "$2=`ls /lib/*.a 2>/dev/null | egrep \"\/$3\$\"`"
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /lib/$3... no"
eval "$2=`ls /usr/lib/*.a 2>/dev/null | egrep \"\/$3\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /usr/lib/$3... no"
eval "$2=`ls /usr/local/lib/*.a 2>/dev/null | egrep \"\/$3\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /usr/local/lib/$3... no"
eval "$2=`ls /mingw/lib/*.a 2>/dev/null | egrep \"\/$3\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /mingw/lib/$3... no"
eval "$2=`ls /mingw$cpu_type/lib/*.a 2>/dev/null | egrep \"\/$3\$\"`"
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 2 " trying /mingw$cpu_type/lib/$3... no"
log 1 "configure: error: $2 couldn't be found"
log 1 "configure: error: you requested a static link, but I can't find $3"
exit 1
fi
fi
else
# Make sure it exists
if [ -f "$1" ]; then
eval "$2=`ls $1 2>/dev/null`"
else
eval "$2=`ls $1/$3 2>/dev/null`"
fi
fi
eval "res=\$$2"
if [ -z "$res" ]; then
log 1 "checking $2... not found"
if [ "$1" = "2" ]; then
log 1 "configure: error: $2 couldn't be found"
exit 1
elif [ "$1" != "1" ]; then
log 1 "configure: error: $2 couldn't be found"
log 1 "configure: error: you supplied '$1', but it seems invalid"
exit 1
fi
eval "with_$2=0"
return 0
fi
eval "res=\$$2"
log 2 " trying $res... found"
log 1 "checking $2... found"
}
detect_zlib() {
detect_pkg_config "$with_zlib" "zlib" "zlib_config" "1.2"
}
detect_lzo2() {
detect_library "$with_lzo2" "lzo2" "liblzo2.a" "lzo/" "lzo1x.h"
}
detect_fluidsynth() {
detect_library "$with_fluidsynth" "fluidsynth" "" "" "fluidsynth.h"
}
detect_pkg_config() {
# $1 - config-param ($with_lzma value)
# $2 - package name ('liblzma')
# $3 - config name ('lzma_config', sets $lzma_config)
# $4 - minimum module version ('2.3')
# $5 - check for dedicated, 1 is "skif if dedicated"
# 0 means no, 1 is auto-detect, 2 is force
if [ "$1" = "0" ]; then
log 1 "checking $2... disabled"
eval "$3=\"\""
return 0
fi
if [ "$5" = "1" ] && [ "$1" = "1" ] && [ "$enable_dedicated" != "0" ]; then
log 1 "checking $2... dedicated server, skipping"
eval "$3=\"\""
return 0
fi
log 2 "detecting $2"
if [ "$1" = "1" ] || [ "$1" = "" ] || [ "$1" = "2" ]; then
pkg_config_call="$pkg_config $2"
else
pkg_config_call="$1"
fi
version=`$pkg_config_call --modversion 2>/dev/null`
ret=$?
check_version "$4" "$version"
version_ok=$?
log 2 "executing $pkg_config_call --modversion"
log 2 " returned $version"
log 2 " exit code $ret"
if [ -z "$version" ] || [ "$ret" != "0" ] || [ "$version_ok" != "1" ]; then
if [ -n "$version" ] && [ "$version_ok" != "1" ]; then
log 1 "checking $2... needs at least version $4, $2 NOT enabled"
else
log 1 "checking $2... not found"
fi
# It was forced, so it should be found.
if [ "$1" != "1" ]; then
log 1 "configure: error: $pkg_config $2 couldn't be found"
log 1 "configure: error: you supplied '$1', but it seems invalid"
exit 1
fi
eval "$3=\"\""
return 0
fi
eval "$3=\"$pkg_config_call\""
log 1 "checking $2... found"
}
detect_lzma() {
detect_pkg_config "$with_lzma" "liblzma" "lzma_config" "5.0"
}
detect_xdg_basedir() {
detect_pkg_config "$with_xdg_basedir" "libxdg-basedir" "xdg_basedir_config" "1.2"
}
detect_png() {
detect_pkg_config "$with_png" "libpng" "png_config" "1.2"
}
detect_freetype() {
if [ "$with_freetype" = "1" ] && ([ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]); then
log 1 "checking freetype2... WIN32, skipping"
freetype_config=""
return 0
fi
detect_pkg_config "$with_freetype" "freetype2" "freetype_config" "2.2" "1"
}
detect_fontconfig() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_fontconfig" = "0" ]; then
log 1 "checking libfontconfig... disabled"
fontconfig_config=""
return 0
fi
if [ "$os" = "MINGW" ] || [ "$os" = "CYGWIN" ]; then
log 1 "checking libfontconfig... WIN32, skipping"
fontconfig_config=""
return 0
fi
if [ "$os" = "OSX" ]; then
log 1 "checking libfontconfig... OSX, skipping"
fontconfig_config=""
return 0
fi
detect_pkg_config "$with_fontconfig" "fontconfig" "fontconfig_config" "2.3" "1"
}
detect_icu_layout() {
if [ "$with_cocoa" != "0" ] && [ "$with_icu_layout" = "1" ]; then
log 1 "checking icu-lx... OSX, skipping"
icu_layout_config=""
return 0
fi
detect_pkg_config "$with_icu_layout" "icu-lx" "icu_layout_config" "4.8" "1"
}
detect_icu_sort() {
if [ "$with_cocoa" != "0" ] && [ "$with_icu_sort" = "1" ]; then
log 1 "checking icu-i18n... OSX, skipping"
icu_sort_config=""
return 0
fi
detect_pkg_config "$with_icu_sort" "icu-i18n" "icu_sort_config" "4.8" "1"
}
detect_iconv() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_iconv" = "0" ]; then
log 1 "checking iconv... disabled"
return 0
fi
if [ "$with_iconv" = "1" ] && [ "$os" != "OSX" ]; then
log 1 "checking iconv... not OSX, skipping"
with_iconv="0"
return 0
fi
# Try to find iconv.h, seems to only thing to detect iconv with
if [ "$with_iconv" = "1" ] || [ "$with_iconv" = "" ] || [ "$with_iconv" = "2" ]; then
# Iterate over search paths
iconv=""
search_paths=`LC_ALL=C $cxx_host $OSX_SYSROOT $CFLAGS -E - -v &1 | \
$awk '/#include <...> search starts here:/{flag=1;next}/End of search list./{flag=0}flag'`
for path in $search_paths; do
iconv=`ls -1 $path 2>/dev/null | grep "iconv.h"`
if [ -n "$iconv" ]; then
break
fi
done
else
# Make sure it exists
iconv=`ls $with_iconv/include/iconv.h 2>/dev/null`
fi
if [ -z "$iconv" ]; then
log 1 "checking iconv... not found"
if [ "$with_iconv" = "2" ]; then
log 1 "configure: error: iconv couldn't be found"
exit 1
elif [ "$with_iconv" != "1" ]; then
log 1 "configure: error: iconv couldn't be found"
log 1 "configure: error: you supplied '$with_iconv', but I couldn't detect iconv in it"
exit 1
fi
return 0
fi
if [ "$with_iconv" = "1" ]; then
with_iconv="2"
fi
log 2 "found iconv in $iconv"
log 1 "checking iconv... found"
# There are different implementations of iconv. The older ones,
# e.g. SUSv2, pass a const pointer, whereas the newer ones, e.g.
# IEEE 1003.1 (2004), pass a non-const pointer.
cat > tmp.iconv.cpp << EOF
#include "src/stdafx.h"
#include
int main() {
static char buf[1024];
iconv_t convd = 0;
const char *inbuf = "";
char *outbuf = buf;
size_t outlen = 1023;
size_t inlen = 0;
return iconv(convd, &inbuf, &inlen, &outbuf, &outlen);
}
EOF
execute="$cxx_host $OSX_SYSROOT $CFLAGS -c tmp.iconv.cpp -o tmp.iconv -DTESTING 2>&1"
eval $execute > /dev/null
ret=$?
log 2 "executing $execute"
log 2 " exit code $ret"
if [ "$ret" = "0" ]; then have_non_const_iconv="no"; else have_non_const_iconv="yes"; fi
log 1 "checking if iconv has non-const inbuf... $have_non_const_iconv"
cat > tmp.iconv.cpp << EOF
#include "src/stdafx.h"
#include
int main() {
static char buf[1024];
iconv_t convd = 0;
char *inbuf = "";
char *outbuf = buf;
size_t outlen = 1023;
size_t inlen = 0;
return iconv(convd, &inbuf, &inlen, &outbuf, &outlen);
}
EOF
execute="$cxx_host $OSX_SYSROOT $OSX_LD_SYSROOT $CFLAGS tmp.iconv.cpp -o tmp.iconv -DTESTING 2>&1"
eval $execute > /dev/null
ret=$?
log 2 "executing $execute"
log 2 " exit code $ret"
if [ "$ret" = "0" ]; then link_to_iconv="no"; else link_to_iconv="yes"; fi
log 1 "checking whether to link to iconv... $link_to_iconv"
rm -f tmp.iconv tmp.iconv.cpp
}
_detect_sort() {
sort_test_in="d
a
c
b"
sort_test_out="a
b
c
d"
log 2 "running echo | $1"
if [ "`echo \"$sort_test_in\" | $1 2>/dev/null`" = "$sort_test_out" ]; then
sort="$1"
log 2 " result was valid"
else
log 2 " result was invalid"
fi
}
detect_sort() {
if [ "$with_sort" = "0" ]; then
log 1 "checking sort... disabled"
return
fi
if [ "$with_sort" = "1" ] || [ "$with_sort" = "2" ]; then
_detect_sort "sort"
if [ -z "$sort" ]; then _detect_sort "/sbin/sort"; fi
if [ -z "$sort" ]; then _detect_sort "/usr/sbin/sort"; fi
if [ -z "$sort" ]; then _detect_sort "/usr/local/sbin/sort"; fi
if [ -z "$sort" ]; then _detect_sort "/bin/sort"; fi
if [ -z "$sort" ]; then _detect_sort "/usr/bin/sort"; fi
if [ -z "$sort" ]; then _detect_sort "/usr/local/bin/sort"; fi
else
_detect_sort "$with_sort"
fi
if [ -z "$sort" ]; then
if [ "$with_sort" = "2" ]; then
log 1 "checking sort... not found"
log 1 "configure: error: couldn't detect sort on your system"
exit 1
elif [ "$with_sort" != "1" ]; then
log 1 "checking sort... $with_sort not found"
log 1 "configure: error: '$with_sort' doesn't look like a sort to me"
log 1 "configure: error: please verify its location and function and try again"
exit 1
else
log 1 "checking sort... not found"
fi
else
log 1 "checking sort... $sort"
fi
}
detect_grfcodec() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_grfcodec" = "0" ]; then
log 1 "checking grfcodec... disabled"
grfcodec=""
return 0
fi
if [ "$with_grfcodec" = "1" ] || [ "$with_grfcodec" = "" ] || [ "$with_grfcodec" = "2" ]; then
grfcodec="grfcodec"
else
grfcodec="$with_grfcodec"
fi
version=`$grfcodec -v 2>/dev/null | $awk '{print $3}' | sed 's/[rM]//g;s/-/0/'`
ret=$?
log 2 "executing grfcodec -v"
log 2 " returned $version"
log 2 " exit code $ret"
if [ -z "$version" ] || [ "$ret" != "0" ] || [ "$version" -lt "985" ]; then
if [ -n "$version" ] && [ "$version" -lt "985" ]; then
log 1 "checking grfcodec... needs at least version 6.0.5 (r985), disabled"
else
log 1 "checking grfcodec... not found"
fi
# It was forced, so it should be found.
if [ "$with_grfcodec" != "1" ]; then
log 1 "configure: error: grfcodec couldn't be found"
log 1 "configure: error: you supplied '$with_grfcodec', but it seems invalid"
exit 1
fi
grfcodec=""
return 0
fi
log 1 "checking grfcodec... found"
}
detect_nforenum() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_nforenum" = "0" ]; then
log 1 "checking nforenum... disabled"
nforenum=""
return 0
fi
if [ "$with_nforenum" = "1" ] || [ "$with_nforenum" = "" ] || [ "$with_nforenum" = "2" ]; then
nforenum="nforenum"
else
nforenum="$with_nforenum"
fi
version=`$nforenum -v 2>/dev/null | $awk '{print $3}' | sed 's/[rM]//g;s/-/0/'`
ret=$?
log 2 "executing nforenum -v"
log 2 " returned $version"
log 2 " exit code $ret"
if [ -z "$version" ] || [ "$ret" != "0" ] || [ "$version" -lt "985" ]; then
if [ -n "$version" ] && [ "$version" -lt "985" ]; then
log 1 "checking nforenum... needs at least version 6.0.5 (r985), disabled"
else
log 1 "checking nforenum... not found"
fi
# It was forced, so it should be found.
if [ "$with_nforenum" != "1" ]; then
log 1 "configure: error: nforenum couldn't be found"
log 1 "configure: error: you supplied '$with_nforenum', but it seems invalid"
exit 1
fi
nforenum=""
return 0
fi
log 1 "checking nforenum... found"
}
_detect_cputype_width() {
echo "#define _SQ64 1" > $1.cpp
echo "#include \"src/stdafx.h\"" >> $1.cpp
echo "assert_compile(sizeof(size_t) == $2);" >> $1.cpp
echo "int main() { return 0; }" >> $1.cpp
execute="$cxx_host $CFLAGS -std=c++11 $1.cpp -o $1 -DTESTING 2>&1"
cpu_type="`eval $execute 2>/dev/null`"
ret=$?
log 2 "executing $execute"
log 2 " returned $cpu_type"
log 2 " exit code $ret"
rm -f $1 $1.cpp
return $ret
}
detect_cputype() {
if [ -n "$cpu_type" ] && [ "$cpu_type" != "DETECT" ]; then
log 1 "forcing cpu-type... $cpu_type bits"
return;
fi
_detect_cputype_width tmp.32bit 4
result32=$?
_detect_cputype_width tmp.64bit 8
result64=$?
if [ "$result32" = 0 ] && [ "$result64" != 0 ]; then
cpu_type="32"
elif [ "$result32" != 0 ] && [ "$result64" = 0 ]; then
cpu_type="64"
else
log 1 "configure: unable to determine cpu-type (pointer width)"
exit 1
fi
log 1 "detecting cpu-type... $cpu_type bits"
}
detect_sse_capable_architecture() {
# 0 means no, 1 is auto-detect, 2 is force
if [ "$with_sse" = "0" ]; then
log 1 "checking SSE... disabled"
return
fi
echo "#define _SQ64 1" > tmp.sse.cpp
echo "#include " >> tmp.sse.cpp
echo "#include " >> tmp.sse.cpp
echo "#include " >> tmp.sse.cpp
echo "int main() { return 0; }" >> tmp.sse.cpp
execute="$cxx_host -msse4.1 $CFLAGS tmp.sse.cpp -o tmp.sse 2>&1"
sse="`eval $execute 2>/dev/null`"
ret=$?
log 2 "executing $execute"
log 2 " returned $sse"
log 2 " exit code $ret"
if [ "$ret" = "0" ]; then
log 1 "detecting SSE... found"
else
# It was forced, so it should be found.
if [ "$with_sse" != "1" ]; then
log 1 "configure: error: SSE couln't be found"
log 1 "configure: error: you force enabled SSE, but it seems unavailable"
exit 1
fi
log 1 "detecting SSE... not found"
with_sse="0"
fi
rm -f tmp.sse tmp.exe tmp.sse.cpp
}
make_sed() {
T_CFLAGS="$CFLAGS"
T_CXXFLAGS="$CXXFLAGS"
T_LDFLAGS="$LDFLAGS"
SRC_OBJS_DIR="$BASE_SRC_OBJS_DIR/$OBJS_SUBDIR"
# All the data needed to compile a single target
# Make sure if you compile multiple targets to
# use multiple OBJS_DIR, because all in-between
# binaries are stored in there, and nowhere else.
SRC_REPLACE="
s@!!CC_HOST!!@$cc_host@g;
s@!!CXX_HOST!!@$cxx_host@g;
s@!!CC_BUILD!!@$cc_build@g;
s@!!CXX_BUILD!!@$cxx_build@g;
s@!!WINDRES!!@$windres@g;
s@!!STRIP!!@$strip $strip_arg@g;
s@!!LIPO!!@$lipo@g;
s@!!CFLAGS!!@$T_CFLAGS@g;
s@!!CFLAGS_BUILD!!@$CFLAGS_BUILD@g;
s@!!CXXFLAGS!!@$T_CXXFLAGS@g;
s@!!CXXFLAGS_BUILD!!@$CXXFLAGS_BUILD@g;
s@!!STRGEN_FLAGS!!@$strgen_flags@g;
s@!!LIBS!!@$LIBS@g;
s@!!LDFLAGS!!@$T_LDFLAGS@g;
s@!!LDFLAGS_BUILD!!@$LDFLAGS_BUILD@g;
s@!!BIN_DIR!!@$BIN_DIR@g;
s@!!ROOT_DIR!!@$ROOT_DIR@g;
s@!!MEDIA_DIR!!@$MEDIA_DIR@g;
s@!!SOURCE_LIST!!@$SOURCE_LIST@g;
s@!!SRC_OBJS_DIR!!@$SRC_OBJS_DIR@g;
s@!!LANG_OBJS_DIR!!@$LANG_OBJS_DIR@g;
s@!!GRF_OBJS_DIR!!@$GRF_OBJS_DIR@g;
s@!!SETTING_OBJS_DIR!!@$SETTING_OBJS_DIR@g;
s@!!SRC_DIR!!@$SRC_DIR@g;
s@!!SCRIPT_SRC_DIR!!@$SCRIPT_SRC_DIR@g;
s@!!OSXAPP!!@$OSXAPP@g;
s@!!LANG_DIR!!@$LANG_DIR@g;
s@!!TTD!!@$TTD@g;
s@!!BINARY_DIR!!@$prefix_dir/$binary_dir@g;
s@!!DATA_DIR!!@$prefix_dir/$data_dir@g;
s@!!DOC_DIR!!@$prefix_dir/$doc_dir@g;
s@!!MAN_DIR!!@$prefix_dir/$man_dir@g;
s@!!ICON_DIR!!@$prefix_dir/$icon_dir@g;
s@!!ICON_THEME_DIR!!@$prefix_dir/$icon_theme_dir@g;
s@!!PERSONAL_DIR!!@$personal_dir@g;
s@!!SHARED_DIR!!@$shared_dir@g;
s@!!INSTALL_DIR!!@$install_dir@g;
s@!!BINARY_NAME!!@$binary_name@g;
s@!!STRGEN!!@$STRGEN@g;
s@!!DEPEND!!@$DEPEND@g;
s@!!SETTINGSGEN!!@$SETTINGSGEN@g;
s@!!STAGE!!@$STAGE@g;
s@!!MAKEDEPEND!!@$makedepend@g;
s@!!CFLAGS_MAKEDEP!!@$cflags_makedep@g;
s@!!SORT!!@$sort@g;
s@!!CONFIG_CACHE_COMPILER!!@config.cache.compiler@g;
s@!!CONFIG_CACHE_LINKER!!@config.cache.linker@g;
s@!!CONFIG_CACHE_SOURCE!!@config.cache.source@g;
s@!!CONFIG_CACHE_VERSION!!@config.cache.version@g;
s@!!CONFIG_CACHE_SOURCE_LIST!!@config.cache.source.list@g;
s@!!CONFIG_CACHE_PWD!!@config.cache.pwd@g;
s@!!CONFIG_CACHE_INVOCATION!!@config.cache.invocation@g;
s@!!LANG_SUPPRESS!!@$lang_suppress@g;
s@!!OBJS_C!!@$OBJS_C@g;
s@!!OBJS_CPP!!@$OBJS_CPP@g;
s@!!OBJS_MM!!@$OBJS_MM@g;
s@!!OBJS_RC!!@$OBJS_RC@g;
s@!!SRCS!!@$SRCS@g;
s@!!OS!!@$os@g;
s@!!CPU_TYPE!!@$cpu_type@g;
s@!!CONFIGURE_FILES!!@$CONFIGURE_FILES@g;
s@!!AWK!!@$awk@g;
s@!!DISTCC!!@$distcc@g;
s@!!NFORENUM!!@$nforenum@g;
s@!!GRFCODEC!!@$grfcodec@g;
s@!!CONFIGURE_INVOCATION!!@$CONFIGURE_INVOCATION@g;
"
if [ "$icon_theme_dir" != "" ]; then
SRC_REPLACE="$SRC_REPLACE
s@!!ICON_THEME_DIR!!@$prefix_dir/$icon_theme_dir@g;
"
else
SRC_REPLACE="$SRC_REPLACE
s@!!ICON_THEME_DIR!!@@g;
"
fi
if [ "$man_dir" != "" ]; then
SRC_REPLACE="$SRC_REPLACE
s@!!MAN_DIR!!@$prefix_dir/$man_dir@g;
"
else
SRC_REPLACE="$SRC_REPLACE
s@!!MAN_DIR!!@@g;
"
fi
if [ "$menu_dir" != "" ]; then
SRC_REPLACE="$SRC_REPLACE
s@!!MENU_DIR!!@$prefix_dir/$menu_dir@g;
"
else
SRC_REPLACE="$SRC_REPLACE
s@!!MENU_DIR!!@@g;
"
fi
}
generate_menu_item() {
MENU_REPLACE="
s@!!TTD!!@$TTD@g;
s@!!MENU_GROUP!!@$menu_group@g;
s@!!MENU_NAME!!@$menu_name@g
"
log 1 "Generating menu item..."
mkdir -p media
< $ROOT_DIR/media/openttd.desktop.in sed "$MENU_REPLACE" > media/openttd.desktop
}
generate_main() {
STAGE="[MAIN]"
make_sed
# Create the main Makefile
log 1 "Generating Makefile..."
echo "# Auto-generated file from 'Makefile.in' -- DO NOT EDIT" > Makefile
< $ROOT_DIR/Makefile.in sed "$SRC_REPLACE" >> Makefile
cp $ROOT_DIR/Makefile.bundle.in Makefile.bundle
echo "# Auto-generated file -- DO NOT EDIT" > Makefile.am
echo >> Makefile.am
# Make the copy of the source-list, so we don't trigger an unwanted recompile
cp $SOURCE_LIST config.cache.source.list
# Add the current directory, so we don't trigger an unwanted recompile
echo "`pwd`" > config.cache.pwd
# Make sure config.cache is OLDER then config.cache.source.list
touch config.cache
touch config.pwd
if [ "$menu_dir" != "" ]; then
generate_menu_item
fi
}
generate_lang() {
STAGE="[LANG]"
make_sed
# Create the language file
mkdir -p $LANG_OBJS_DIR
log 1 "Generating lang/Makefile..."
echo "# Auto-generated file from 'Makefile.lang.in' -- DO NOT EDIT" > $LANG_OBJS_DIR/Makefile
< $ROOT_DIR/Makefile.lang.in sed "$SRC_REPLACE" >> $LANG_OBJS_DIR/Makefile
echo "DIRS += $LANG_OBJS_DIR" >> Makefile.am
echo "LANG_DIRS += $LANG_OBJS_DIR" >> Makefile.am
}
generate_settings() {
STAGE="[SETTING]"
make_sed
# Create the language file
mkdir -p $SETTING_OBJS_DIR
log 1 "Generating setting/Makefile..."
echo "# Auto-generated file from 'Makefile.settings.in' -- DO NOT EDIT" > $SETTING_OBJS_DIR/Makefile
< $ROOT_DIR/Makefile.setting.in sed "$SRC_REPLACE" >> $SETTING_OBJS_DIR/Makefile
echo "DIRS += $SETTING_OBJS_DIR" >> Makefile.am
}
generate_grf() {
STAGE="[BASESET]"
make_sed
# Create the language file
mkdir -p $GRF_OBJS_DIR
log 1 "Generating grf/Makefile..."
echo "# Auto-generated file from 'Makefile.grf.in' -- DO NOT EDIT" > $GRF_OBJS_DIR/Makefile
< $ROOT_DIR/Makefile.grf.in sed "$SRC_REPLACE" >> $GRF_OBJS_DIR/Makefile
echo "DIRS += $GRF_OBJS_DIR" >> Makefile.am
}
generate_src_normal() {
STAGE=$1
make_sed
# Create the source file
mkdir -p $SRC_OBJS_DIR
log 1 "Generating $2/Makefile..."
echo "# Auto-generated file from 'Makefile.src.in' -- DO NOT EDIT" > $SRC_OBJS_DIR/Makefile
< $ROOT_DIR/Makefile.src.in sed "$SRC_REPLACE" >> $SRC_OBJS_DIR/Makefile
echo "DIRS += $SRC_OBJS_DIR" >> Makefile.am
echo "SRC_DIRS += $SRC_OBJS_DIR" >> Makefile.am
}
generate_src_osx() {
cc_host_orig="$cc_host"
cxx_host_orig="$cxx_host"
CFLAGS_orig="$CFLAGS"
LDFLAGS_orig="$LDFLAGS"
for type in $enable_universal; do
if [ -n "$osx_sdk_104_path" ]; then
# Use 10.4 SDK for 32-bit targets
CFLAGS="-isysroot $osx_sdk_104_path $CFLAGS_orig"
LDFLAGS="-Wl,-syslibroot,$osx_sdk_104_path $LDFLAGS_orig"
fi
# We don't want to duplicate the x86_64 stuff for each target, so do it once here
if [ "$type" = "ppc64" ] || [ "$type" = "x86_64" ]; then
# 64 bits is always 10.5 or higher. Furthermore it has a non const ICONV
# and they also removed support for QuickTime/QuickDraw
if [ -n "$osx_sdk_path" ]; then
CFLAGS="-isysroot $osx_sdk_path $CFLAGS_orig"
LDFLAGS="-Wl,-syslibroot,$osx_sdk_path $LDFLAGS_orig"
fi
CFLAGS="$CFLAGS -D_SQ64 -DNO_QUICKTIME -UENABLE_COCOA_QUICKDRAW"
LIBS="`echo $LIBS | sed 's/-framework QuickTime//'`"
fi
case $type in
ppc)
BASE_SRC_OBJS_DIR="$OBJS_DIR/ppc"
cc_host="$cc_host_orig -arch ppc -mmacosx-version-min=10.3"
cxx_host="$cxx_host_orig -arch ppc -mmacosx-version-min=10.3"
generate_src_normal "[ppc]" "objs/ppc";;
ppc970)
BASE_SRC_OBJS_DIR="$OBJS_DIR/ppc970"
cc_host="$cc_host_orig -arch ppc970 -mmacosx-version-min=10.3 -mcpu=G5 -mpowerpc64 -mtune=970 -mcpu=970 -mpowerpc-gpopt"
cxx_host="$cxx_host_orig -arch ppc970 -mmacosx-version-min=10.3 -mcpu=G5 -mpowerpc64 -mtune=970 -mcpu=970 -mpowerpc-gpopt"
generate_src_normal "[ppc970]" "objs/ppc970";;
i386)
BASE_SRC_OBJS_DIR="$OBJS_DIR/i386"
cc_host="$cc_host_orig -arch i386 -mmacosx-version-min=10.4"
cxx_host="$cxx_host_orig -arch i386 -mmacosx-version-min=10.4"
generate_src_normal "[i386]" "objs/i386";;
ppc64)
BASE_SRC_OBJS_DIR="$OBJS_DIR/ppc64"
cc_host="$cc_host_orig -arch ppc64 -mmacosx-version-min=10.5"
cxx_host="$cxx_host_orig -arch ppc64 -mmacosx-version-min=10.5"
generate_src_normal "[ppc64]" "objs/ppc64";;
x86_64)
BASE_SRC_OBJS_DIR="$OBJS_DIR/x86_64"
cc_host="$cc_host_orig -arch x86_64 -mmacosx-version-min=10.5"
cxx_host="$cxx_host_orig -arch x86_64 -mmacosx-version-min=10.5"
generate_src_normal "[x86_64]" "objs/x86_64";;
*) log 1 "Unknown architecture requested for universal build: $type";;
esac
done
}
generate_src() {
if [ "$os" = "OSX" ] && [ "$enable_universal" != "0" ]; then
generate_src_osx
else
generate_src_normal "[SRC]" "objs"
fi
}
showhelp() {
echo "'configure' configures OpenTTD."
echo ""
echo "Usage: $0 [OPTION]... [VAR=VALUE]..."
echo ""
echo "To assign environment variables (e.g., CC, CFLAGS...), specify them as"
echo "VAR=VALUE. See below for descriptions of some of the useful variables."
echo ""
echo "Defaults for the options are specified in brackets."
echo ""
echo "Configuration:"
echo " -h, --help display this help and exit"
echo ""
echo "System types:"
echo " --build=BUILD configure for building on BUILD [guessed]"
echo " --host=HOST cross-compile to build programs to run"
echo " on HOST [BUILD]"
echo " --windres=WINDRES the windres to use [HOST-windres]"
echo " --strip=STRIP the strip to use [HOST-strip]"
echo " --awk=AWK the awk to use in configure [awk]"
echo " --pkg-config=PKG-CONFIG the pkg-config to use in configure [pkg-config]"
echo " --lipo=LIPO the lipo to use (OSX ONLY) [HOST-lipo]"
echo " --os=OS the OS we are compiling for [DETECT]"
echo " DETECT/UNIX/OSX/FREEBSD/DRAGONFLY/OPENBSD/"
echo " NETBSD/HPUX/SUNOS/CYGWIN/"
echo " MINGW/OS2/HAIKU"
echo ""
echo "Paths:"
echo " --prefix-dir=dir specifies the prefix for all installed"
echo " files [/usr/local]"
echo " --binary-dir=dir location of the binary. Will be prefixed"
echo " with the prefix-dir [games]"
echo " --data-dir=dir location of data files (lang, data, gm)."
echo " Will be prefixed with the prefix-dir"
echo " [share/games/openttd]"
echo " --doc-dir=dir location of the doc files"
echo " Will be prefixed with the prefix-dir"
echo " [$doc_dir]"
echo " --icon-dir=dir location of icons. Will be prefixed"
echo " with the prefix-dir [share/pixmaps]"
echo " --icon-theme-dir=dir location of icon theme."
echo " Will be prefixed with the prefix-dir"
echo " and postfixed with size-dirs [$icon_theme_dir]"
echo " --man-dir=dir location of the manual page (UNIX only)"
echo " Will be prefixed with the prefix-dir"
echo " [$man_dir]"
echo " --menu-dir=dir location of the menu item. (UNIX only, except OSX)"
echo " Will be prefixed with the prefix-dir"
echo " [share/applications]"
echo " --personal-dir=dir location of the personal directory"
echo " [os-dependent default]"
echo " --shared-dir=dir location of shared data files"
echo " [os-dependent default]"
echo " --install-dir=dir specifies the root to install to."
echo " Useful to install into jails [/]"
echo " --binary-name the name used for the binary, icons,"
echo " desktop file, etc. when installing [openttd]"
echo ""
echo "Features and packages:"
echo " --enable-debug[=LVL] enable debug-mode (LVL=[0123], 0 is release)"
echo " --enable-desync-debug=[LVL] enable desync debug options (LVL=[012], 0 is none"
echo " --enable-profiling enables profiling"
echo " --enable-lto enables GCC's Link Time Optimization (LTO)/ICC's"
echo " Interprocedural Optimization if available"
echo " --enable-dedicated compile a dedicated server (without video)"
echo " --enable-static enable static compile (doesn't work for"
echo " all HOSTs)"
echo " --enable-translator enable extra output for translators"
echo " --enable-universal[=ARCH] enable universal builds (OSX ONLY). Allowed is any combination"
echo " of architectures: i386 ppc ppc970 ppc64 x86_64"
echo " Default architectures are: i386 ppc"
echo " --enable-osx-g5 enables optimizations for ppc970 (G5) (OSX ONLY)"
echo " --disable-cocoa-quartz disable the quartz window mode driver for Cocoa (OSX ONLY)"
echo " --disable-cocoa-quickdraw disable the quickdraw window mode driver for Cocoa (OSX ONLY)"
echo " --disable-unicode disable unicode support to build win9x"
echo " version (Win32 ONLY)"
echo " --enable-console compile as a console application instead of as a GUI application."
echo " If this setting is active, debug output will appear in the same"
echo " console instead of opening a new window. (Win32 ONLY)"
echo " --disable-assert disable asserts (continue on errors)"
echo " --enable-strip enable any possible stripping"
echo " --without-osx-sysroot disable the automatic adding of sysroot "
echo " (OSX ONLY)"
echo " --without-application-bundle disable generation of application bundle"
echo " (OSX ONLY)"
echo " --without-menu-entry Don't generate a menu item (Freedesktop based only)"
echo " --menu-group=group Category in which the menu item will be placed (Freedesktop based only)"
echo " --menu-name=name Name of the menu item when placed [OpenTTD]"
echo " --with-direct-music enable direct music support (Win32 ONLY)"
echo " --with-sort=sort define a non-default location for sort"
echo " --with-midi=midi define which midi-player to use"
echo " --with-midi-arg=arg define which args to use for the"
echo " midi-player"
echo " --with-fluidsynth enables fluidsynth support"
echo " --with-allegro[=\"pkg-config allegro\"]"
echo " enables Allegro video driver support"
echo " --with-cocoa enables COCOA video driver (OSX ONLY)"
echo " --with-sdl[=\"pkg-config sdl\"] enables SDL video driver support"
echo " --with-zlib[=\"pkg-config zlib\"]"
echo " enables zlib support"
echo " --with-liblzma[=\"pkg-config liblzma\"]"
echo " enables liblzma support"
echo " --with-liblzo2[=liblzo2.a] enables liblzo2 support"
echo " --with-png[=\"pkg-config libpng\"]"
echo " enables libpng support"
echo " --with-freetype[=\"pkg-config freetype2\"]"
echo " enables libfreetype support"
echo " --with-fontconfig[=\"pkg-config fontconfig\"]"
echo " enables fontconfig support"
echo " --with-xdg-basedir[=\"pkg-config libxdg-basedir\"]"
echo " enables XDG base directory support"
echo " --with-icu enables icu components for layout and sorting"
echo " --with-icu-layout[=\"pkg-config icu-lx\"]"
echo " enables icu components for layouting (right-to-left support)"
echo " --with-icu-sort[=\"pkg-config icu-i18n\"]"
echo " enables icu components for locale specific string sorting"
echo " --static-icu try to link statically (libsicu instead of"
echo " libicu; can fail as the new name is guessed)"
echo " --with-iconv[=iconv-path] enables iconv support"
echo " --disable-builtin-depend disable use of builtin deps finder"
echo " --with-makedepend[=makedepend] enables makedepend support"
echo " --with-ccache enables ccache support"
echo " --with-distcc enables distcc support"
echo " --without-grfcodec disable usage of grfcodec and re-generation of base sets"
echo " --without-threads disable threading support"
echo " --without-sse disable SSE support (x86/x86_64 only)"
echo " --without-libbfd disable libbfd support, used for improved crash logs (MinGW and Unix/glibc only)"
echo " --without-bfd-extra-debug disable extra debugging information when using libbfd (MinGW and Unix/glibc only)"
echo " --without-self-gdb-debug disable improved crash logs using gdb (Linux only)"
echo " --without-self-lldb-debug disable improved crash logs using lldb (OSX only)"
echo ""
echo "Some influential environment variables:"
echo " CC C compiler command"
echo " CXX C++ compiler command"
echo " CFLAGS C compiler flags"
echo " CXXFLAGS C++ compiler flags"
echo " WINDRES windres command"
echo " LDFLAGS linker flags, e.g. -L if you"
echo " have libraries in a nonstandard"
echo " directory "
echo " CFLAGS_BUILD C compiler flags for build time tool generation"
echo " CXXFLAGS_BUILD C++ compiler flags for build time tool generation"
echo " LDFLAGS_BUILD linker flags for build time tool generation"
echo " PKG_CONFIG_PATH additional library search paths (see \"man pkg-config\")"
echo " PKG_CONFIG_LIBDIR replace the default library search path (see \"man pkg-config\")"
echo ""
echo "Use these variables to override the choices made by 'configure' or to help"
echo "it to find libraries and programs with nonstandard names/locations."
}