--- ./imageio/pngdec.c_orig	2019-06-07 01:21:52 +0000
+++ ./imageio/pngdec.c	2019-06-07 01:23:00 +0000
@@ -34,6 +34,15 @@
 #define LOCAL_PNG_PREREQ(maj, min) \
    (LOCAL_PNG_VERSION >= (((maj) << 8) | (min)))
 
+ #ifdef jmpbuf
+ #undef jmpbuf
+ #endif
+
+ #ifndef png_jmpbuf
+ #  define png_jmpbuf(png_ptr)   ((png_ptr)->jmpbuf)
+ #endif
+
+
 static void PNGAPI error_function(png_structp png, png_const_charp error) {
   if (error != NULL) fprintf(stderr, "libpng error: %s\n", error);
   longjmp(png_jmpbuf(png), 1);