Define PTRDIFF_MAX if it's not in stdint.h

Seems to be the case on HP-UX

diff --git a/src/yaml_private.h b/src/yaml_private.h
index faa28ead4418111828e0e9c77731fca7f1c8070a..ac1295b7d3331b8c95fe640d41cab9214d887784 100644 (file)
--- a/src/yaml_private.h
+++ b/src/yaml_private.h
@@ -10,6 +10,13 @@
 
 #ifndef _MSC_VER
 #include <stdint.h>
+#ifndef PTRDIFF_MAX /* gcc on HP-UX sucks */
+#ifdef _LP64
+#define PTRDIFF_MAX 0x7FFFFFFFFFFFFFFFLL
+#else
+#define PTRDIFF_MAX 0x7FFFFFFFL
+#endif
+#endif
 #else
 #ifdef _WIN64
 #define PTRDIFF_MAX _I64_MAX