Cannot build on Gentoo

[ColinGilbert]

Hi,

I have built and installed Corrade using its standard buildscripts, but upon trying to build Magnum, I receive the following error:

num/build/src/Magnum/Shaders/resource_MagnumShaders_RCS.cpp
/usr/local/bin/corrade-rc: error while loading shared libraries: libCorradeUtility.so.0: cannot open shared object file: No such file or directory
src/Magnum/Shaders/CMakeFiles/MagnumShaders.dir/build.make:75: recipe for target 'src/Magnum/Shaders/resource_MagnumShaders_RCS.cpp' failed
make[2]: *** [src/Magnum/Shaders/resource_MagnumShaders_RCS.cpp] Error 127
CMakeFiles/Makefile2:849: recipe for target 'src/Magnum/Shaders/CMakeFiles/MagnumShaders.dir/all' failed
make[1]: *** [src/Magnum/Shaders/CMakeFiles/MagnumShaders.dir/all] Error 2
Makefile:116: recipe for target 'all' failed
make: *** [all] Error 2

Any advice?

[mosra]

Hi,

I don't really know how Gentoo ebuilds work, but from the output it seems that it is not able to find the library in /usr/local/lib (because that directory is not in the library path on most systems). I assume that /usr/local/lib/libCorradeUtility.so.0 exists.

Looking at the Corrade buildscript, it seems that the -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr" argument was somehow skipped and so the CMake default /usr/local prefix was used instead of /usr.

in the corrade-999.ebuild file there is something fishy with the \ line continuation characters, can you try to remove all of them like in the following snippet to see if it gets installed into proper location?

    ...
    local mycmakeargs=(
        -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr"
        -DCMAKE_BUILD_TYPE=Debug
        -DBUILD_TESTS=TRUE
        -DWITH_FIND_MODULE=TRUE
    )
    ...

If that won't help, does CMake print any error/warning when building Corrade?

[ColinGilbert]

Just built from Github repo tonight.

[mosra]

Glad to know it's fixed :)