I am trying to determine how to cross-compile fontconfig. This is so
that I can integrate fontconfig into HandBrake's build system, which
supports cross-compiling to many architectures.
I am starting by trying to determine how to cross-compile fontconfig by
itself. For the initial attempt, the build-arch is ppc and the host-arch
x86_64.
Under normal circumstances I would override the compile flags like so:
$ ./configure CFLAGS="-arch x86_64" CXXFLAGS="-arch x86_64"
CPPFLAGS="-arch x86_64" LDFLAGS="-arch x86_64"
--host=x86_64-apple-darwin9.8.0 && make
> Output: http://handbrake.fr/pastebin/pastebin.php?show=1608
This does not work because fontconfig attempts to build and run some
fc-* tools. Since the above flag-overriding behavior will cause the fc-*
tools to be built under the host-arch (x86_64), they won't be executable
on the build-arch (ppc).
You would think that the following configure line would work correctly:
$ ./configure --host=x86_64-apple-darwin9.8.0 --with-arch=x86_64
> Output: http://handbrake.fr/pastebin/pastebin.php?show=1609
However this doesn't actually result in the libfontconfig.a library
being cross-compiled at all. Inspecting the .a file reveals ppc, not
x86_64 assembly.
$ otool -tv src/.libs/libfontconfig.a | head -n 10
Archive : src/.libs/libfontconfig.a
src/.libs/libfontconfig.a(fcatomic.o):
(__TEXT,__text) section
_FcAtomicCreate:
00000000 mfspr r0,lr
00000004 stmw r26,0xffe8(r1)
00000008 or r26,r3,r3
0000000c bcl 20,31,0x10
00000010 mfspr r31,lr
00000014 stw r0,0x8(r1)
How do I configure fontconfig to actually cross-compile correctly?
David
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