[CMake] CMake toolchain file changing shared library loading name

[m.hergarden]

On 07/19/2013 10:41 AM, ??????? ?????????? wrote:
> Hello.
> I have a strange issue when cross compiling with CMake.
> When i compile for host, in the resulting binary i have:
>
> readelf -d ./test
> ...
> 0x00000001 (NEEDED)          Shared library: [libfoo.so]
> 0x0000000f (RPATH)              Library rpath: [$ORIGIN/../../lib/]
> ...
>
> When i use CMake toolchain file (cmake -DCMAKE_TOOLCHAIN_FILE=arm_
> test.cmake .) i have:
> readelf -d ./test
> ...
> 0x00000001 (NEEDED)          Shared library:
> [/home/mgh/proj/test/lib/libfoo.so]
> 0x0000000f (RPATH)              Library rpath: [$ORIGIN/../../lib/]
> ...
>
> My toolchain file is very simple:
>
> set( CMAKE_SYSTEM_NAME armLinux )
>
> set( CMAKE_C_COMPILER arm-linux-gnueabi-gcc )
> set( CMAKE_CXX_COMPILER arm-linux-gnueabi-g++ )
> set( CMAKE_FIND_ROOT_PATH /home/mgh/toolchains/arm-linux-gnueabi/bin )
>
> So my question is why path to libfoo.so has been changed in executable
> after
> cross compiling? Thank you.
>
>
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Are you using find_library to locate the library? Setting the
CMAKE_FIND_ROOT_PATH influences the way libraries are found for
crosscompilation, but you may need to set
CMAKE_FIND_ROOT_PATH_MODE_LIBRARY as well, to make sure the right
library is found.

Regards,
Micha Hergarden

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