--- CMakeLists.txt.orig	2017-06-04 05:59:53 UTC
+++ CMakeLists.txt
@@ -226,7 +226,7 @@ configure_file(
 # install pkg-config file
 install(
     FILES "${CMAKE_CURRENT_BINARY_DIR}/glm.pc"
-    DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig"
+    DESTINATION "${CMAKE_INSTALL_LIBDIR}/../libdata/pkgconfig"
 )
 
 export(PACKAGE glm)