X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=src%2Fpngsize.c;h=42b849dc53edd4fb9c98122cf05fbd5dd810ec9f;hb=3a9760d1aea27a60cf558cf8998042acc455fd61;hp=1705fc8cc7d14cf7d1c72300bcf85eeb1a331f00;hpb=7383625ce0413ce5dbcc0ced4ee4873c6df37735;p=rrdtool.git

diff --git a/src/pngsize.c b/src/pngsize.c
index 1705fc8..42b849d 100644
--- a/src/pngsize.c
+++ b/src/pngsize.c
@@ -31,7 +31,11 @@ int PngSize(
 #undef jmpbuf
 #endif
 
-    if (setjmp(png_read_ptr->jmpbuf)) {
+#ifndef png_jmpbuf
+#  define png_jmpbuf(png_ptr)   ((png_ptr)->jmpbuf)
+#endif
+
+    if (setjmp(png_jmpbuf(png_read_ptr))) {
         png_destroy_read_struct(&png_read_ptr, &info_ptr, (png_infopp) NULL);
         return 0;
     }