[Fontconfig] fontconfig configure-generated libtool fails to find cross-compiled libs

[Leon Woestenberg]

Hello all,

I am cross-compiling fontconfig on a x86_64 development platform for 
running on a x86 platform. I have a basic cross compiler setup up which 
works properly, but nothing much else (no chroot/fakeroot/scratchbox 
approach). libreetype, libexpat  and libz are already properly 
cross-compiled and tested on the target without too much trouble.

They each sit in their own {freetype,expat,zlib}/sysroot directory. I 
configure fontconfig as follows:

./configure --host=i686-pc-linux --prefix=/usr \
CPPFLAGS="-I`pwd`/../../freetype/sysroot/usr/include 
-I`pwd`/../../expat/sysroot/usr/include" \
CFLAGS="-I`pwd`/../../freetype/sysroot/usr/include  
-I`pwd`/../../expat/sysroot/usr/include" \
LDFLAGS="-L`pwd`/../../expat/sysroot/usr/lib 
-L`pwd`/../../freetype/sysroot/usr/lib -L`pwd`/../../zlib/sysroot/usr/lib" \
-with-freetype-config="../../freetype/sysroot/usr/bin/freetype-config"

Subsequent make runs well through the compilation stage, but fails on 
linking (see output below). Obviously, configure (or the generated 
libtool) picks op the development host shared library directories and 
the wrong freetype lib is linked against, then it fails.

I have tried several overrides, but cannot succeed in getting fontconfig 
to build (other than doing everything manual).

How must I tell fontconfig's configure where my libraries are, such that 
libtool these only?

Thanks and regards,

Leon Woestenberg.



Making install in src
make[1]: Entering directory 
`/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/src'
/bin/sh ../libtool --mode=link 
/home/cross/sandbox/tracs/diy/i686/nptl/bin/i686-linux-gcc  
-I/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../freetype/sysroot/usr/include  
-I/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../expat/sysroot/usr/include  
-L/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../expat/sysroot/usr/lib 
-L/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../freetype/sysroot/usr/lib 
-L/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../zlib/sysroot/usr/lib 
-o libfontconfig.la -rpath /usr/lib -version-info 1:4:0   fcatomic.lo 
fcblanks.lo fccache.lo fccfg.lo fccharset.lo fcdbg.lo fcdefault.lo 
fcdir.lo fcfreetype.lo fcfs.lo fcinit.lo fclang.lo fclist.lo fcmatch.lo 
fcmatrix.lo fcname.lo fcpat.lo fcstr.lo fcxml.lo -lfreetype -lexpat
/home/cross/sandbox/tracs/diy/i686/nptl/bin/i686-linux-gcc -shared  
.libs/fcatomic.o .libs/fcblanks.o .libs/fccache.o .libs/fccfg.o 
.libs/fccharset.o .libs/fcdbg.o .libs/fcdefault.o .libs/fcdir.o 
.libs/fcfreetype.o .libs/fcfs.o .libs/fcinit.o .libs/fclang.o 
.libs/fclist.o .libs/fcmatch.o .libs/fcmatrix.o .libs/fcname.o 
.libs/fcpat.o .libs/fcstr.o .libs/fcxml.o  
-L/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../expat/sysroot/usr/lib 
-L/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../freetype/sysroot/usr/lib 
-L/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/../../zlib/sysroot/usr/lib 
/usr/lib/libfreetype.so /usr/lib/libexpat.so  -Wl,-soname 
-Wl,libfontconfig.so.1 -o .libs/libfontconfig.so.1.0.4
/usr/lib/libfreetype.so: could not read symbols: File in wrong format
collect2: ld returned 1 exit status
make[1]: *** [libfontconfig.la] Error 1
make[1]: Leaving directory 
`/home/cross/sandbox/tracs/fontconfig/fontconfig-2.3.2/src'
make: *** [install-recursive] Error 1
~/sandbox/tracs/fontconfig