I maintain a MinGW cross compiling environment (http://www.profv.de/mingw_cross_env/) and it works with versions up to fontconfig-2.4.2 like a charm. However, the versions 2.4.9x and 2.5.0 break. When cross compiling fontconfig 2.5.0, the code generators of fontconfig depend on freetype. This is a big problem, because the FREETYPE_* variables (as determined by ./configure) point to the cross-compiled freetype instead of the native freetype. Luckily, the code generators don't really have this dependency. It is merely introduced as a side effect by "fcint.h". The simplest solution is not to include FREETYPE_CFLAGS in the Makefile.am/in of fc-case, fc-arch, etc. and to define a symbol NOFREETYPE instead. Then "fcint.h" just needs to exclude any freetype dependent code if NOFREETYPE is defined. This patch for fontconfig-2.5.0 does exactly that: http://www.profv.de/fontconfig-crosscompile-patch/
Created attachment 13316 [details] [review] enable cross compiling by removing freetype dependencies from the code generators When cross compiling fontconfig 2.5.0, the code generators of fontconfig depend on freetype. This is a big problem, because the FREETYPE_* variables (as determined by ./configure) point to the cross-compiled freetype instead of the native freetype. Luckily, the code generators don't really have this dependency. It is merely introduced as a side effect by "fcint.h". The simplest solution is not to include FREETYPE_CFLAGS in the Makefile.am/in of fc-case, fc-arch, etc. and to define a symbol NOFREETYPE instead. Then "fcint.h" just needs to exclude any freetype dependent code if NOFREETYPE is defined. This patch for fontconfig-2.5.0 does exactly that.
I think a better solution is to eliminate fcfreetype.h from fcint.h and instead create a new fcftint.h file that provides the freetype-specific internal functions for use by the library. I'll attach a patch that does that, please test and verify that it provides the necessary separation.
Created attachment 13334 [details] [review] Split out the Freetype dependent internal functions to fcftint.h This patch creates fcftint.h, which defines the internal freetype-specific APIs used within the fontconfig library. Portions of fontconfig which do not touch freetype APIs need not use this file.
(Sorry for replying so late.) (In reply to comment #2) > please test and verify that it provides the necessary separation. Your patch doesn't work because you forgot to remove '$(FREETYPE_CFLAGS)' from the fc-*/Makefile.am files. I created an additional patch which solves that problem. Both patches in combination seem to work properly.
Created attachment 13459 [details] [review] Extension to the second patch to work properly
The current fontconfig git master works fine. Thank you for including my patch.
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