var/spack/repos/builtin/packages/pgplot/pndriv.c.patch


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--- a/drivers/pndriv.c	1999-03-27 11:06:23.000000000 +0900
+++ b/drivers/pndriv.c	2021-10-15 13:02:16.531645384 +0900
@@ -222,7 +222,7 @@
 	return;
   }
 
-  if (setjmp(png_ptr->jmpbuf)) { /* not really sure what I'm doing here... */
+  if (setjmp(png_jmpbuf(png_ptr))) {
 	fprintf(stderr,"%s: error in libpng while writing file %s, plotting disabled\n", png_ident, filename);
 	png_destroy_write_struct(&png_ptr,&info_ptr);
 	dev->error = true;