[PATCH] build: avoid build warn/failure due to -Wstack-protector

[Jim Meyering]

I got this build failure on i686/ubuntu-9.04:

    cc1: warnings being treated as errors
    df.c: In function 'find_mount_point':
    df.c:524: error: not protecting local variables: variable length buffer 
[-Wstack-protector]
    make[3]: *** [df.o] Error 1

Fixed it with this:

>From a9461064b8d47089e9ae7f8bc1c5c84e9e2d1d64 Mon Sep 17 00:00:00 2001
From: Jim Meyering <address@hidden>
Date: Thu, 9 Jul 2009 15:20:15 +0200
Subject: [PATCH] build: avoid build warn/failure due to -Wstack-protector

* configure.ac: Do not enable -Wstack-protector.
Otherwise, at least df.c would provoke a warning.
---
 configure.ac |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/configure.ac b/configure.ac
index 32d2958..4cb9d29 100644
--- a/configure.ac
+++ b/configure.ac
@@ -82,6 +82,7 @@ if test "$gl_gcc_warnings" = yes; then
   nw="$nw -Wnested-externs"         # use of XARGMATCH/verify_function__
   nw="$nw -Wswitch-enum"            # Too many warnings for now
   nw="$nw -Wswitch-default"         # Too many warnings for now
+  nw="$nw -Wstack-protector"        # not worth working around
   # things I might fix soon:
   nw="$nw -Wfloat-equal"            # sort.c, seq.c
   nw="$nw -Wmissing-format-attribute" # copy.c
--
1.6.3.3.524.g8586b