[CMake] cmake does not find modules when cross compiling

[Gonçalo Bernardo]

yes. any other ideas?

thanks,
gonçalo

On Wed, Aug 17, 2011 at 3:49 PM, Bjørn Forsman <bjorn.forsman at gmail.com>wrote:

> 2011/8/17 Gonçalo Bernardo <goncalobernardo at gmail.com>:
> > Dear all,
> >
> > I am using cmake and cmake-gui to cross-compile OpenCV. I wrote the
> > following toolchain file:
> >
> > INCLUDE(CMakeForceCompiler)
> >
> > SET(CMAKE_CROSSCOMPILING TRUE)
> >
> > # this one is important
> > SET(CMAKE_SYSTEM_NAME Linux)
> > #this one not so much
> > SET(CMAKE_SYSTEM_VERSION 1)
> >
> > # specify the cross compiler
> > SET(CMAKE_C_COMPILER
> > /usr/local/angstrom/arm/bin/arm-angstrom-linux-gnueabi-gcc)
> > SET(CMAKE_CXX_COMPILER
> > /usr/local/angstrom/arm/bin/arm-angstrom-linux-gnueabi-g++)
> >
> > # where is the target environment
> > SET(CMAKE_FIND_ROOT_PATH  /media/rootfs /media/rootfs/usr)
> >
> > # search for programs in the build host directories
> > SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
> > # for libraries and headers in the target directories
> > SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
> > SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
> >
> > When i load this in cmake-gui i face some problems. the cross-compilers
> seem
> > to be correctly identified but not the packages installed in my rootfs.
> for
> > instance cmake-gui prints:
> >
> > checking for module 'libavcodec'
> >
> > package 'libavcodec' not found
> >
> > when libavcodec.so.52 is present in rootfs/usr/lib. The problem also
> happens
> > with gstreamer, ffmpeg,...
> >
> > how can i find out which specific files is cmake looking for?
> > any other suggestion on this?
>
> Have you tried without this:
>
> INCLUDE(CMakeForceCompiler)
> SET(CMAKE_CROSSCOMPILING TRUE)
>
> Best regards,
> Bjørn Forsman
>



-- 
.::Gonber::.
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