Add: [CMake] Allow renaming of openttd binary

CMakeLists.txt

@@ -1,6 +1,10 @@
 cmake_minimum_required(VERSION 3.5)
 
-project(OpenTTD)
+if (NOT BINARY_NAME)
+    set(BINARY_NAME openttd)
+endif (NOT BINARY_NAME)
+
+project(${BINARY_NAME})
 
 if (CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR)
     message(FATAL_ERROR "In-source builds not allowed. Please run \"cmake ..\" from the bin directory")
@@ -131,6 +135,7 @@ include(CompileFlags)
 compile_flags()
 
 add_executable(openttd WIN32 ${GENERATED_SOURCE_FILES})
+set_target_properties(openttd PROPERTIES OUTPUT_NAME "${BINARY_NAME}")
 # All other files are added via target_sources()
 
 include(AddCustomXXXTimestamp)

cmake/InstallAndPackage.cmake

@@ -3,7 +3,7 @@ include(GNUInstallDirs)
 # If requested, use FHS layout; otherwise fall back to a flat layout.
 if (OPTION_INSTALL_FHS)
     set(BINARY_DESTINATION_DIR "${CMAKE_INSTALL_BINDIR}")
-    set(DATA_DESTINATION_DIR "${CMAKE_INSTALL_DATADIR}/openttd")
+    set(DATA_DESTINATION_DIR "${CMAKE_INSTALL_DATADIR}/${BINARY_NAME}")
     set(DOCS_DESTINATION_DIR "${CMAKE_INSTALL_DOCDIR}")
     set(MAN_DESTINATION_DIR "${CMAKE_INSTALL_MANDIR}")
 else (OPTION_INSTALL_FHS)
@@ -41,7 +41,7 @@ install(FILES
 # file with little context to what it is.
 if (OPTION_INSTALL_FHS)
     set(MAN_SOURCE_FILE ${CMAKE_SOURCE_DIR}/docs/openttd.6)
-    set(MAN_BINARY_FILE ${CMAKE_BINARY_DIR}/docs/openttd.6)
+    set(MAN_BINARY_FILE ${CMAKE_BINARY_DIR}/docs/${BINARY_NAME}.6)
     install(CODE
             "
                 execute_process(COMMAND ${CMAKE_COMMAND} -E copy ${MAN_SOURCE_FILE} ${MAN_BINARY_FILE})

cmake/Options.cmake

@@ -14,9 +14,9 @@ function(set_directory_options)
         set(DEFAULT_SHARED_DIR "(not set)")
         set(DEFAULT_GLOBAL_DIR "(not set)")
     elseif (UNIX)
-        set(DEFAULT_PERSONAL_DIR ".openttd")
+        set(DEFAULT_PERSONAL_DIR ".${BINARY_NAME}")
         set(DEFAULT_SHARED_DIR "(not set)")
-        set(DEFAULT_GLOBAL_DIR "${CMAKE_INSTALL_FULL_DATADIR}/openttd")
+        set(DEFAULT_GLOBAL_DIR "${CMAKE_INSTALL_FULL_DATADIR}/${BINARY_NAME}")
     else ()
         message(FATAL_ERROR "Unknown OS found; please consider creating a Pull Request to add support for this OS.")
     endif ()
@@ -51,7 +51,7 @@ function(set_options)
     option(OPTION_FORCE_COLORED_OUTPUT "Always produce ANSI-colored output (GNU/Clang only)." OFF)
 
     option(OPTION_DEDICATED "Build dedicated server only (no GUI)" OFF)
-    option(OPTION_INSTALL_FHS "Install with Filesstem Hierarchy Standard folders" ${DEFAULT_OPTION_INSTALL_FHS})
+    option(OPTION_INSTALL_FHS "Install with Filesystem Hierarchy Standard folders" ${DEFAULT_OPTION_INSTALL_FHS})
     option(OPTION_USE_ASSERTS "Use assertions; leave enabled for nightlies, betas, and RCs" ON)
     option(OPTION_USE_THREADS "Use threads" ON)
     option(OPTION_USE_NSIS "Use NSIS to create windows installer; enable only for stable releases" OFF)