$NetBSD: patch-bitmaps__png_CMakeLists.txt,v 1.1 2022/01/02 19:10:03 tnn Exp $

Don't use ${CMAKE_MODULE_PATH} directly as it will be changed
and contains multiple directories

--- bitmaps_png/CMakeLists.txt.orig	2021-12-22 13:32:19.000000000 +0000
+++ bitmaps_png/CMakeLists.txt
@@ -685,9 +685,9 @@ function( png2cpp inputFile outFile )
         OUTPUT  ${outFile}
 
         COMMAND ${CMAKE_COMMAND} -DinputFile=${inputFile} -DoutCppFile=${outFile}
-            -P ${CMAKE_MODULE_PATH}/BuildSteps/PNG2cpp.cmake
+            -P ${PROJECT_SOURCE_DIR}/CMakeModules/BuildSteps/PNG2cpp.cmake
 
-        DEPENDS ${inputFile} ${CMAKE_MODULE_PATH}/BuildSteps/PNG2cpp.cmake
+        DEPENDS ${inputFile} ${PROJECT_SOURCE_DIR}/CMakeModules/BuildSteps/PNG2cpp.cmake
         COMMENT "Creating ${outFile}"
         )
 endfunction()