From b9b154d1cfc80d0992613713780a2bf8ee88da41 Mon Sep 17 00:00:00 2001
From: Roumen Petrov <openssl@roumenpetrov.info>
Date: Thu, 3 Dec 2015 23:43:24 +0200
Subject: [PATCH] __STDC_VERSION__ is not defined for c89 compilers

Signed-off-by: Kurt Roeckx <kurt@roeckx.be>
Reviewed-by: Rich Salz <rsalz@openssl.org>

MR: #1522
---
 include/openssl/e_os2.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/openssl/e_os2.h b/include/openssl/e_os2.h
index 07428e9439..bbfb48e4ba 100644
--- a/include/openssl/e_os2.h
+++ b/include/openssl/e_os2.h
@@ -321,8 +321,10 @@ typedef unsigned __int64 uint64_t;
  * some systems (e.g. Mac OS X).
  */
 # ifndef PRIu64
-#  if (__STDC_VERSION__ >= 199901L)
-#   include <inttypes.h>
+#  ifdef __STDC_VERSION__
+#   if (__STDC_VERSION__ >= 199901L)
+#    include <inttypes.h>
+#   endif
 #  endif
 #  ifndef PRIu64
 #   define PRIu64 "lu"
-- 
2.34.1