use commondir (share) for pkgconfig installation
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3aa8122..6d1bf51 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -193,7 +196,7 @@ set(PRIVATE_LIBS "-lOpenMeshCore -lOpenMeshTools")
 
 configure_file("openmesh.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/openmesh.pc" @ONLY)
 
-install(FILES ${CMAKE_CURRENT_BINARY_DIR}/openmesh.pc DESTINATION libdata/pkgconfig)
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/openmesh.pc DESTINATION share/pkgconfig)
 
 # generate target file