Do not use libpng

Author: sharkwouter

CMakeLists.txt

@@ -85,14 +85,13 @@ set(SDLIMAGE_GIF OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_JPG ON CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_JPG_SHARED OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_JPG_SAVE OFF CACHE INTERNAL "" FORCE)
-set(SDLIMAGE_JPG_SAVE OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_JXL OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_LBM OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_PCX OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_SVG ON CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_PNG ON CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_PNG_SAVE OFF CACHE INTERNAL "" FORCE)
-set(SDLIMAGE_PNG_LIBPNG ON CACHE INTERNAL "" FORCE)
+set(SDLIMAGE_PNG_LIBPNG OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_PNG_SHARED OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_PNM OFF CACHE INTERNAL "" FORCE)
 set(SDLIMAGE_QOI OFF CACHE INTERNAL "" FORCE)