VWR-22769 : libPNG linking: fixed the non standalone case so that we can keep...

VWR-22769 : libPNG linking: fixed the non standalone case so that we can keep things unchanged for those folks (libpng wise) while taking in changes making things easier for standalone builders

indra/cmake/PNG.cmake

@@ -6,6 +6,6 @@ set(PNG_FIND_REQUIRED ON)
 if (STANDALONE)
   include(FindPNG)
 else (STANDALONE)
-  set(PNG_LIBRARIES png)
-  set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include)
+  set(PNG_LIBRARIES png12)
+  set(PNG_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/libpng12)
 endif (STANDALONE)