Eric Blake <ebl...@redhat.com> writes:
> We need to document this issue if we decide this is important enough to
> fix in autoconf. But a patch for this issue seems like a reasonable
> improvement to me. Would you like to help write one?
How about this?
Andreas.
>From e45f558825d68ae898153c33c710ac377016fc8d Mon Sep 17 00:00:00 2001
From: Andreas Schwab <sch...@linux-m68k.org>
Date: Tue, 22 Nov 2011 00:36:46 +0100
Subject: [PATCH] general: Sanitize IFS in EXIT trap
IFS may be modified temporarily when the configure script receives a
signal. Make sure the EXIT trap uses the standard value.
* lib/autoconf/general.m4: Sanitize IFS in trap.
---
lib/autoconf/general.m4 | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/autoconf/general.m4 b/lib/autoconf/general.m4
index adfae1d..d06fdf5 100644
--- a/lib/autoconf/general.m4
+++ b/lib/autoconf/general.m4
@@ -1266,6 +1266,8 @@ AS_UNSET(ac_configure_args1)
# WARNING: Use '\'' to represent an apostrophe within the trap.
# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
trap 'exit_status=$?
+ # Sanitize IFS.
+ IFS=" "" $as_nl"
# Save into config.log some information that might help in debugging.
{
echo
--
1.7.11.2
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
