CMake: pkg-config: fix usage for RedHat-like systems (#728)

$prefix/lib isn't in pc_path on Fedora 28:

    [root@fedora-28 ~]# pkg-config --variable=pc_path pkg-config
    /usr/lib64/pkgconfig:/usr/share/pkgconfig

This has the effect that the pkg-config file is written to the
correct location but pkg-config --libs raylib doesn't output
the correct library path. This fixes this problem by substituting
the directory names into the .pc, same as we do with the CMakeLists.txt
since #518.

This issue popped up during the automated test of the Perl bindings:
    https://github.com/athreef/Alien-raylib/issues/3
This commit is contained in:
Ahmad Fatoum 2019-01-19 13:52:55 +01:00 committed by GitHub
parent d41e50f866
commit 6c812b56d9
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@ -1,7 +1,7 @@
prefix=@CMAKE_INSTALL_PREFIX@ prefix=@CMAKE_INSTALL_PREFIX@
exec_prefix=${prefix} exec_prefix=${prefix}
libdir=${exec_prefix}/lib libdir=${exec_prefix}/@CMAKE_INSTALL_LIBDIR@
includedir=${prefix}/include includedir=${prefix}/@CMAKE_INSTALL_INCLUDEDIR@
Name: raylib Name: raylib
Description: Simple and easy-to-use library to enjoy videogames programming Description: Simple and easy-to-use library to enjoy videogames programming