maint: update all copyright year number ranges

[gnulib.git] / m4 / progtest.m4

diff --git a/m4/progtest.m4 b/m4/progtest.m4
index 8fe527c..7b39123 100644 (file)
--- a/m4/progtest.m4
+++ b/m4/progtest.m4
@@ -1,10 +1,8 @@
-# progtest.m4 serial 3 (gettext-0.12)
-dnl Copyright (C) 1996-2003 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# progtest.m4 serial 7 (gettext-0.18.2)
+dnl Copyright (C) 1996-2003, 2005, 2008-2013 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
 dnl
 dnl This file can can be used in projects which are not available under
 dnl the GNU General Public License or the GNU Library General Public
@@ -18,6 +16,8 @@ dnl They are *not* in the public domain.
 dnl Authors:
 dnl   Ulrich Drepper <drepper@cygnus.com>, 1996.
 
+AC_PREREQ([2.50])
+
 # Search path for a program which passes the given test.
 
 dnl AM_PATH_PROG_WITH_TEST(VARIABLE, PROG-TO-CHECK-FOR,
@@ -27,15 +27,14 @@ AC_DEFUN([AM_PATH_PROG_WITH_TEST],
 # Prepare PATH_SEPARATOR.
 # The user is always right.
 if test "${PATH_SEPARATOR+set}" != set; then
-  echo "#! /bin/sh" >conf$$.sh
-  echo  "exit 0"   >>conf$$.sh
-  chmod +x conf$$.sh
-  if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
-    PATH_SEPARATOR=';'
-  else
-    PATH_SEPARATOR=:
-  fi
-  rm -f conf$$.sh
+  # Determine PATH_SEPARATOR by trying to find /bin/sh in a PATH which
+  # contains only /bin. Note that ksh looks also at the FPATH variable,
+  # so we have to set that as well for the test.
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+    && { (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 \
+           || PATH_SEPARATOR=';'
+       }
 fi
 
 # Find out how to test for executable files. Don't use a zero-byte file,
@@ -55,7 +54,7 @@ rm -f conf$$.file
 # Extract the first word of "$2", so it can be a program name with args.
 set dummy $2; ac_word=[$]2
 AC_MSG_CHECKING([for $ac_word])
-AC_CACHE_VAL(ac_cv_path_$1,
+AC_CACHE_VAL([ac_cv_path_$1],
 [case "[$]$1" in
   [[\\/]]* | ?:[[\\/]]*)
     ac_cv_path_$1="[$]$1" # Let the user override the test with a path.
@@ -67,6 +66,7 @@ AC_CACHE_VAL(ac_cv_path_$1,
       test -z "$ac_dir" && ac_dir=.
       for ac_exec_ext in '' $ac_executable_extensions; do
         if $ac_executable_p "$ac_dir/$ac_word$ac_exec_ext"; then
+          echo "$as_me: trying $ac_dir/$ac_word..." >&AS_MESSAGE_LOG_FD
           if [$3]; then
             ac_cv_path_$1="$ac_dir/$ac_word$ac_exec_ext"
             break 2
@@ -83,9 +83,9 @@ ifelse([$4], , , [  test -z "[$]ac_cv_path_$1" && ac_cv_path_$1="$4"
 esac])dnl
 $1="$ac_cv_path_$1"
 if test ifelse([$4], , [-n "[$]$1"], ["[$]$1" != "$4"]); then
-  AC_MSG_RESULT([$]$1)
+  AC_MSG_RESULT([$][$1])
 else
-  AC_MSG_RESULT(no)
+  AC_MSG_RESULT([no])
 fi
-AC_SUBST($1)dnl
+AC_SUBST([$1])dnl
 ])