(svn r26011) -Fix: --help text of ./configure for packages that require pkg-config

config.lib

@@ -3694,14 +3694,15 @@ showhelp() {
 	echo "  --with-cocoa                   enables COCOA video driver (OSX ONLY)"
 	echo "  --with-sdl[=sdl-config]        enables SDL video driver support"
 	echo "  --with-zlib[=zlib.a]           enables zlib support"
-	echo "  --with-liblzma[=liblzma.a]     enables liblzma support"
+	echo "  --with-liblzma[=\"pkg-config liblzma\"]"
+	echo "                                 enables liblzma support"
 	echo "  --with-liblzo2[=liblzo2.a]     enables liblzo2 support"
 	echo "  --with-png[=libpng-config]     enables libpng support"
 	echo "  --with-freetype[=freetype-config]"
 	echo "                                 enables libfreetype support"
-	echo "  --with-fontconfig[=pkg-config fontconfig]"
+	echo "  --with-fontconfig[=\"pkg-config fontconfig\"]"
 	echo "                                 enables fontconfig support"
-	echo "  --with-xdg-basedir[=pkg-config libxdg-basedir]"
+	echo "  --with-xdg-basedir[=\"pkg-config libxdg-basedir\"]"
 	echo "                                 enables fontconfig support"
 	echo "  --with-icu[=icu-config]        enables icu (used for right-to-left support)"
 	echo "  --static-icu                   try to link statically (libsicu instead of"