Fix a bug in how pr -m -s works.

* NEWS: Describe how the fix affects pr.
* src/pr.c (init_parameters): The --merge (-m) option does
not imply --expand-tabs (-e), so don't set "untabify_input".
Reported by Wis Macomson.
* tests/misc/pr: New file.  Test for the above fix.
* tests/misc/Makefile.am (TESTS): Add pr.
* THANKS: Update.

2 files changed, 62 insertions, 0 deletions

diff --git a/tests/misc/Makefile.am b/tests/misc/Makefile.am
index 1aa3516f8..4d6a754a8 100644
--- a/tests/misc/Makefile.am
+++ b/tests/misc/Makefile.am
@@ -40,6 +40,7 @@ TESTS_ENVIRONMENT = \
 # will execute the test script rather than the standard utility.
 
 TESTS = \
+  pr \
   df-P \
   pwd-unreadable-parent \
   cut \
diff --git a/tests/misc/pr b/tests/misc/pr
new file mode 100755
index 000000000..a40ea31c1
--- /dev/null
+++ b/tests/misc/pr
@@ -0,0 +1,61 @@
+#!/bin/sh
+# -*- perl -*-
+# Exercise a bug with pr -m -s
+
+# Copyright (C) 2007 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+: ${PERL=perl}
+: ${srcdir=.}
+
+. $srcdir/../envvar-check
+
+$PERL -e 1 > /dev/null 2>&1 || {
+  echo 1>&2 "$0: configure didn't find a usable version of Perl," \
+    "so can't run this test"
+  exit 77
+}
+
+exec $PERL -w -I$srcdir/.. -MCoreutils -- - <<\EOF
+#/
+require 5.003;
+use strict;
+
+(my $program_name = $0) =~ s|.*/||;
+
+$ENV{PROG} = 'pr';
+my $ME = $ENV{PROG};
+
+# Turn off localization of executable's ouput.
+@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
+
+my @Tests =
+  (
+   ['merge-w-tabs', '-m -s -t',
+    {IN=>{1=>"a\tb\tc\n"}},
+    {IN=>{2=>"m\tn\to\n"}},
+    {IN=>{3=>"x\ty\tz\n"}},
+     {OUT=>join("\t", qw(a b c m n o x y z)) . "\n"} ],
+  );
+
+my $save_temps = $ENV{DEBUG};
+my $verbose = $ENV{VERBOSE};
+
+my $prog = $ENV{PROG} || die "$0: \$PROG not specified in environment\n";
+my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
+exit $fail;
+EOF