From 48787c839e394d3c543d847e0173b988ca319cba Mon Sep 17 00:00:00 2001
From: Nick Mathewson <nickm@torproject.org>
Date: Mon, 25 Jul 2005 18:10:08 +0000
Subject: Fix logic to set TIME_T_MAX; apparently, everybody had thought of the
 prospect of a signed time_t but me.

svn:r4675
---
 configure.in | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index fb6a02859..6c82d10c8 100644
--- a/configure.in
+++ b/configure.in
@@ -335,6 +335,17 @@ AC_CHECK_SIZEOF(long long)
 AC_CHECK_SIZEOF(__int64)
 AC_CHECK_SIZEOF(void *)
 AC_CHECK_SIZEOF(time_t)
+AC_CACHE_CHECK([whether time_t is signed], tor_cv_time_t_signed, [
+AC_TRY_RUN([
+int main(int c, char**v) { if (((time_t)-1)<0) return 1; else return 0; }],
+  tor_cv_time_t_signed=no, tor_cv_time_t_signed=yes)
+])
+
+if test $tor_cv_time_t_signed = yes; then
+  AC_DEFINE([TIME_T_IS_SIGNED], 1,
+            [Define to 1 iff time_t is signed])
+fi
+
 AC_CHECK_SIZEOF(socklen_t, , [AC_INCLUDES_DEFAULT()
 #ifdef HAVE_SYS_SOCKET_H
 #include <sys/socket.h>
-- 
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