X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fpngsize.c;fp=src%2Fpngsize.c;h=59e2003f00c404722a5e13b519c28be0a72c948f;hb=61db3bacdfadeec7ed9b9160ff10316099668721;hp=1705fc8cc7d14cf7d1c72300bcf85eeb1a331f00;hpb=bbe14939aca831605f56753b1b0023ff46cad7b7;p=rrdtool.git

diff --git a/src/pngsize.c b/src/pngsize.c
index 1705fc8..59e2003 100644
--- a/src/pngsize.c
+++ b/src/pngsize.c
@@ -31,10 +31,14 @@ int PngSize(
 #undef jmpbuf
 #endif
 
-    if (setjmp(png_read_ptr->jmpbuf)) {
-        png_destroy_read_struct(&png_read_ptr, &info_ptr, (png_infopp) NULL);
-        return 0;
-    }
+#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;
+  }
 
     png_init_io(png_read_ptr, fd);
     png_read_info(png_read_ptr, info_ptr);