diff --git a/ext/gd/libgd/gd_compat.c b/ext/gd/libgd/gd_compat.c
new file mode 100644
index 00000000000..bba62341ca7
--- /dev/null
+++ b/ext/gd/libgd/gd_compat.c
@@ -0,0 +1,35 @@
+#include "php_config.h" 
+#ifdef HAVE_GD_PNG
+/* needs to be first */
+# include <png.h>
+#endif
+
+#ifdef HAVE_GD_JPG
+# include <jpeglib.h>
+#endif
+
+#ifdef HAVE_GD_JPG
+int gdJpegGetVersionInt()
+{
+	return JPEG_LIB_VERSION;
+}
+
+int gdJpegGetVersionString()
+{
+	switch(JPEG_LIB_VERSION) {
+		case 62:
+			return "6b";
+			break;
+		default:
+			return "unknown";
+	}
+}
+#endif
+
+#ifdef HAVE_GD_PNG
+const char * gdPngGetVersionString()
+{
+	return PNG_LIBPNG_VER_STRING;
+}
+#endif
+
diff --git a/ext/gd/libgd/gd_compat.h b/ext/gd/libgd/gd_compat.h
new file mode 100644
index 00000000000..086e6d2cd3c
--- /dev/null
+++ b/ext/gd/libgd/gd_compat.h
@@ -0,0 +1,5 @@
+const char * gdPngGetVersionString();
+int gdJpegGetVersionString();
+int gdJpegGetVersionInt();
+int overflow2(int a, int b);
+