gentoo-overlay/dev-libs/zziplib/files/zziplib-0.13.71-join-paths-pc-zzipsdldir.patch

commit 497c1598cea9dcb13d210de59b1dc65425ca5fdb
Author: Jan Tojnar <jtojnar@gmail.com>
Date:   Thu Apr 16 20:09:11 2020 +0200

    build: Produce more correct pc file with zzipsdldir
    
    Just like described in commit 892dea3b82208654cc9f57ffc4ef555d0d934cf5,
    the CMAKE_INSTALL_INCLUDEDIR variable can be absolute path so simply
    appending it to \${prefix} might not work.

diff --git a/SDL/CMakeLists.txt b/SDL/CMakeLists.txt
index 7ceba4a..6a4f860 100644
--- a/SDL/CMakeLists.txt
+++ b/SDL/CMakeLists.txt
@@ -49,9 +49,10 @@ if(SDL_FOUND)
 if(UNIX)
 join_paths(libdir "\${prefix}" "${CMAKE_INSTALL_LIBDIR}")
 join_paths(includedir "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
+join_paths(pc_zzipsdldir "\${prefix}" "${zzipsdldir}")
 add_custom_command(OUTPUT SDL_rwops_zzip.pc
    COMMAND ${BASH} -c "echo 'prefix=${CMAKE_INSTALL_PREFIX}' > SDL_rwops_zzip.pc"
-   COMMAND ${BASH} -c "echo 'zzipsdldir=\${prefix}/${zzipsdldir}' >> SDL_rwops_zzip.pc"
+   COMMAND ${BASH} -c "echo 'zzipsdldir=${pc_zzipsdldir}' >> SDL_rwops_zzip.pc"
    COMMAND ${BASH} -c "echo '' >> SDL_rwops_zzip.pc"
    COMMAND ${BASH} -c "echo 'Name: SDL_rwops_zzip' >> SDL_rwops_zzip.pc"
    COMMAND ${BASH} -c "echo 'Version: ${PROJECT_VERSION}' >> SDL_rwops_zzip.pc"