[fuse-devel] libfuse and cross-compile using autoconf

[Hans B. <han...@gm...>]

Hi. I do not know what is going on but I am getting a severe headache by 
trying to get this to work :(
I am using an AC_CHECK_LIB macro in configure.ac and the lookup for 
fuse_main in -lfuse work fine when building for local host.
But when cross-compiling it fails! I know my toolchain should be setup 
properly (actually tried two different ones) since testing for some 
other libraries (built by myself) work just fine that is placed in the 
same lib folder as libfuse.so. I actually removed all fuse files from 
the host native path just to make sure it did not try to link against 
the wrong architecture. Doing nm on the shared library shows fuse_main 
being there so that is not the problem.
Anyone that encountered similar problems and can share some advice on 
how to solve this ?

Hans

Here is a simple test that fails for cross-compilation, this is just an 
example, in the actual case I pick-up the additional LDFLAGS from a 
configure options. But it also fails with a hardcode path :(

LDFLAGS="-L/opt/realtek/usr/local/toolchain_mipsel/lib"
AC_CHECK_LIB(fuse, fuse_main,[FUSE_LIBS="-lfuse"],
      AC_MSG_ERROR([
           Oops!])
)

 >ls -l /opt/realtek/usr/local/toolchain_mipsel/lib
lrwxrwxrwx 1 root root     16 2011-05-22 14:27 
/opt/realtek/usr/local/toolchain_mipsel/lib/libfuse.so -> libfuse.so.2.8.1
lrwxrwxrwx 1 root root     16 2011-05-22 14:27 
/opt/realtek/usr/local/toolchain_mipsel/lib/libfuse.so.2 -> libfuse.so.2.8.1
-rwxr--r-- 1 root root 404397 2011-05-22 14:27 
/opt/realtek/usr/local/toolchain_mipsel/lib/libfuse.so.2.8.1

 >file /opt/realtek/usr/local/toolchain_mipsel/lib/libfuse.so.2.8.1
/opt/realtek/usr/local/toolchain_mipsel/lib/libfuse.so.2.8.1: ELF 32-bit 
LSB shared object, MIPS, MIPS32 version 1 (SYSV), dynamically linked, 
not stripped

 >mipsel-linux-nm 
/opt/realtek/usr/local/toolchain_mipsel/lib/libfuse.so.2.8.1 | grep 
fuse_main
019860 T fuse_main
00019c10 t fuse_main_common
00019d64 T fuse_main_compat1
00019d1c T fuse_main_compat2
00019df0 T fuse_main_real
00019dac T fuse_main_real_compat22
00019cd8 T fuse_main_real_compat25