autotest: fix file descriptor leak

* lib/autotest/general.m4 (_AT_CHECK): Close AS_MESSAGE_LOG_FD
when running the test.	Problem reported by Luke Mewburn in
<http://lists.gnu.org/archive/html/autoconf/2010-11/msg00036.html>.

diff --git a/ChangeLog b/ChangeLog
index 62358eafd517714cd20c84283279751045b66243..c1ec95d8ccd903c6b764406b28ea514485283d38 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-11-26  Paul Eggert  <eggert@cs.ucla.edu>
+
+       autotest: fix file descriptor leak
+       * lib/autotest/general.m4 (_AT_CHECK): Close AS_MESSAGE_LOG_FD
+       when running the test.  Problem reported by Luke Mewburn in
+       <http://lists.gnu.org/archive/html/autoconf/2010-11/msg00036.html>.
+
 2010-11-20  Paul Eggert  <eggert@cs.ucla.edu>
 
        autoconf: don't assume sys/stat.h and sys/types.h when testing C89

diff --git a/lib/autotest/general.m4 b/lib/autotest/general.m4
index 78f1cc6166b7b1b540740b3202177ee17035a85b..fc8d8660580dd15d018b36b2bdf88f0076ae5caf 100644 (file)
--- a/lib/autotest/general.m4
+++ b/lib/autotest/general.m4
@@ -2190,7 +2190,7 @@ m4_define([_AT_CHECK],
 AS_ECHO(["$at_srcdir/AT_LINE: AS_ESCAPE([[$1]])"])
 _AT_DECIDE_TRACEABLE([$1]) _AT_LINE_ESCAPED
 ( $at_check_trace; [$1]
-) >>"$at_stdout" 2>>"$at_stderr"
+) >>"$at_stdout" 2>>"$at_stderr" AS_MESSAGE_LOG_FD>&-
 at_status=$? at_failed=false
 $at_check_filter
 m4_ifdef([AT_DIFF_STDERR($4)], [m4_indir([AT_DIFF_STDERR($4)])],