autoconf-1.0: avoiding core dump message on SunOS 4.1.1

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1 total messages Started by Ian Lance Taylor Tue, 11 Aug 1992 05:22

#260

Author: Ian Lance Taylor
Date: Tue, 11 Aug 1992 05:22

21 lines
1199 bytes

If a program tested by AC_TEST_PROGRAM dumps core on SunOS 4.1.1, a
message reporting the core dump is written to stderr.  This seems to
happen because the exit status is passed back through the subshell and
the && and is caught and handled by the topmost shell.  I've worked
out a way to avoid the message, and have tested it on a number of
different machines.  Here is the patch.

--- acgeneral.m4.~1~	Mon Jul 20 01:09:47 1992
+++ acgeneral.m4	Tue Aug 11 01:16:14 1992
@@ -321,7 +321,7 @@
 [$1]
 EOF
 eval $compile
-if test -s conftest && (./conftest 2>/dev/null) 2>/dev/null; then
+if test -s conftest && (./conftest 2>/dev/null; exit) 2>/dev/null; then
   ifelse([$2], , :, [$2])
 ifelse([$3], , , [else
   $3

Ian Taylor
ian@airs.com

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