No includes when cross compiling with cmake?

[Richard Shaw]

Ok, it looks like I got it a little backwards... It's not the -l... that's
missing, it's the -I...

Apparently mingw32-cmake creates a separate includes
file, includes_CXX.rsp, whereas the native cmake just puts them in the
flags.cmake file.

During compilation, it doesn't appear the contents of includes_CXX.rsp is
being substituted:

[ 12%] Building CXX object src/CMakeFiles/libctb.dir/fifo.cpp.obj
cd /home/build/mingw32-proj/libctb-0.16.cmake/build_mingw/src &&
/usr/bin/i686-w64-mingw32-g++   -DPIC -D_THREAD_SAFE -Dlibctb_EXPORTS -O2
-g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
--param=ssp-buffer-size=4  -O3 -DNDEBUG
@CMakeFiles/libctb.dir/includes_CXX.rsp   -MD -MP -fPIC -o
CMakeFiles/libctb.dir/fifo.cpp.obj -c
/home/build/mingw32-proj/libctb-0.16.cmake/src/fifo.cpp
/home/build/mingw32-proj/libctb-0.16.cmake/src/fifo.cpp:1:0: warning: -fPIC
ignored for target (all code is position independent) [enabled by default]

Any ideas?

Thanks,
Richard
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