From f3d0642d35faf43ce027607bb117142b347ee1a4 Mon Sep 17 00:00:00 2001
From: Michael Niedermayer <michaelni@gmx.at>
Date: Sat, 26 Oct 2013 22:08:06 +0200
Subject: [PATCH] avutil/utils: check that size_t is unsigned
ANSI/ISO C guarantee this, yet there is evidence that there exist
platforms where its not so.
See: http://www.cs.utah.edu/dept/old/texinfo/glibc-manual-0.02/library_30.html
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
---
libavutil/utils.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavutil/utils.c b/libavutil/utils.c
index eb87c906c89..dc841621d0b 100644
--- a/libavutil/utils.c
+++ b/libavutil/utils.c
@@ -40,6 +40,8 @@ unsigned avutil_version(void)
av_assert0(LIBAVUTIL_VERSION_MICRO >= 100);
av_assert0(HAVE_MMX2 == HAVE_MMXEXT);
+ av_assert0(((size_t)-1) > 0); // C gurantees this but if false on a platform we care about revert at least b284e1ffe343d6697fb950d1ee517bafda8a9844
+
if (av_sat_dadd32(1, 2) != 5) {
av_log(NULL, AV_LOG_FATAL, "Libavutil has been build with a broken binutils, please upgrade binutils and rebuild\n");
abort();
--
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