--- webkitgtk-2.42.4.old/Source/cmake/FindWebP.cmake
+++ webkitgtk-2.42.4/Source/cmake/FindWebP.cmake
@@ -64,12 +64,12 @@
 
 find_path(WebP_INCLUDE_DIR
     NAMES webp/decode.h
-    HINTS ${PC_WEBP_INCLUDEDIR} ${PC_WEBP_INCLUDE_DIRS}
+    PATHS __META_PRODTREE__/libwebp/include
 )
 
 find_library(WebP_LIBRARY
     NAMES ${WebP_NAMES} webp libwebp
-    HINTS ${PC_WEBP_LIBDIR} ${PC_WEBP_LIBRARY_DIRS}
+    PATHS __META_PRODTREE__/libwebp/lib
 )
 
 # There's nothing in the WebP headers that could be used to detect the exact