configure.in port to POSIX 1003.1-2001

[Eggert-users]

This is a patch to bug #527712.

2002-03-09 Paul Eggert <email address hidden>

 * configure.in (FQDN, URL): Don't use "head -1" or "tail
-1";
 they aren't portable to POSIX 1003.1-2001
implementations, like
 GNU textutils 2.0.21 with _POSIX2_VERSION=200112 in the
environment.

===================================================================
RCS file: configure.in,v
retrieving revision 2.0.8.0
retrieving revision 2.0.8.1
diff -pu -r2.0.8.0 -r2.0.8.1
--- configure.in 2000/09/22 16:56:44 2.0.8.0
+++ configure.in 2002/03/09 04:42:31 2.0.8.1
@@ -425,13 +425,13 @@ changequote([, ])
 AC_MSG_CHECKING(for default fully qualified host name)
 if test -z "$FQDN"
 then
- FQDN=`head -1 conftest.out`
+ FQDN=`sed q conftest.out`
 fi
 AC_MSG_RESULT($FQDN)
 AC_MSG_CHECKING(for default URL host component)
 if test -z "$URL"
 then
- URL=`tail -1 conftest.out`
+ URL=`sed -n '$p' conftest.out`
 fi
 AC_MSG_RESULT($URL)
 rm -f conftest.out conftest.py

[http://sourceforge.net/tracker/index.php?func=detail&aid=527715&group_id=103&atid=300103]

[Barry Warsaw (barry)]

Thanks, accepted.