Merge pull request #611 from kmilos/patch-1

Relative and absolute paths for a relocatable pkgconf file

Author: zeux

CMakeLists.txt

@@ -192,6 +192,17 @@ if (PUGIXML_USE_POSTFIX)
   endif()
 endif()
 
+# Handle both relative and absolute paths (e.g. NixOS) for a relocatable package
+if(IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
+  set(PUGIXML_PC_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}")
+else()
+  set(PUGIXML_PC_INCLUDEDIR "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
+endif()
+if(IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
+  set(PUGIXML_PC_LIBDIR "${CMAKE_INSTALL_LIBDIR}")
+else()
+  set(PUGIXML_PC_LIBDIR "\${exec_prefix}/${CMAKE_INSTALL_LIBDIR}")
+endif()
 configure_file(scripts/pugixml.pc.in pugixml.pc @ONLY)
 
 export(TARGETS ${install-targets}

scripts/pugixml.pc.in

@@ -1,7 +1,7 @@
 prefix=@CMAKE_INSTALL_PREFIX@
 exec_prefix=${prefix}
-includedir=@CMAKE_INSTALL_FULL_INCLUDEDIR@@INSTALL_SUFFIX@
-libdir=@CMAKE_INSTALL_FULL_LIBDIR@@INSTALL_SUFFIX@
+includedir=@PUGIXML_PC_INCLUDEDIR@
+libdir=@PUGIXML_PC_LIBDIR@
 
 Name: pugixml
 Description: Light-weight, simple and fast XML parser for C++ with XPath support.