Imported Upstream version 1.5

[debian/gzip] / m4 / shell.m4

diff --git a/m4/shell.m4 b/m4/shell.m4
index 2b10bb07f6fdeb58bc2bfa6543214a366cb6be8d..a1cf55b9f7c00c20149497433ae883f4a52d15d7 100644 (file)
--- a/m4/shell.m4
+++ b/m4/shell.m4
@@ -1,6 +1,6 @@
 # Check for a working shell.
 
-# Copyright (C) 2000-2001, 2007, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 2000-2001, 2007, 2009-2012 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 3, or (at your option)
@@ -25,52 +25,52 @@ AC_DEFUN([AC_PROG_SHELL],
   [AC_MSG_CHECKING([for a POSIX-compliant shell])
    AC_CACHE_VAL(ac_cv_path_shell,
      [ac_command='
-       # Test the noclobber option, using the portable POSIX.2 syntax.
-       set -C
-       rm -f conftest.c
-       >conftest.c || exit
-       >|conftest.c || exit
-       !>conftest.c || exit
-       # Test that $(...) works.
-       test "$(expr 3 + 4)" -eq 7 || exit
+        # Test the noclobber option, using the portable POSIX.2 syntax.
+        set -C
+        rm -f conftest.c
+        >conftest.c || exit
+        >|conftest.c || exit
+        !>conftest.c || exit
+        # Test that $(...) works.
+        test "$(expr 3 + 4)" -eq 7 || exit
       '
       ac_cv_path_shell=no
 
       case $SHELL in
       (/*)
-       rm -f conftest.c
-       if ("$SHELL" -c "$ac_command") 2>/dev/null; then
-         ac_cv_path_shell=$SHELL
-       fi
+        rm -f conftest.c
+        if ("$SHELL" -c "$ac_command") 2>/dev/null; then
+          ac_cv_path_shell=$SHELL
+        fi
       esac
 
       case $ac_cv_path_shell in
       (no)
-       # Prefer shells that are more likely to be installed in the
-       # same place on all hosts of this platform.  Therefore, prefer
-       # shells in /bin and /usr/bin to shells in the installer's
-       # PATH.  Also, loop through PATH first and then through
-       # shells, since less-"nice" shells in /bin and /usr/bin are
-       # more likely to be installed than "nicer" shells elsewhere.
-       as_save_IFS=$IFS; IFS=:
-       for as_dir in /bin /usr/bin $PATH
-       do
-         IFS=$as_save_IFS
-         case $as_dir in
-         (/*)
-           for ac_base in sh bash ksh sh5; do
-             rm -f conftest.c
-             if ("$as_dir/$ac_base" -c "$ac_command") 2>/dev/null; then
-               ac_cv_path_shell=$as_dir/$ac_base
-               break
-             fi
-           done
-           case $ac_cv_path_shell in
-           (/*) break
-           esac
-         esac
-       done
-       rm -f conftest.c
+        # Prefer shells that are more likely to be installed in the
+        # same place on all hosts of this platform.  Therefore, prefer
+        # shells in /bin and /usr/bin to shells in the installer's
+        # PATH.  Also, loop through PATH first and then through
+        # shells, since less-"nice" shells in /bin and /usr/bin are
+        # more likely to be installed than "nicer" shells elsewhere.
+        as_save_IFS=$IFS; IFS=:
+        for as_dir in /bin /usr/bin $PATH
+        do
+          IFS=$as_save_IFS
+          case $as_dir in
+          (/*)
+            for ac_base in sh bash ksh sh5; do
+              rm -f conftest.c
+              if ("$as_dir/$ac_base" -c "$ac_command") 2>/dev/null; then
+                ac_cv_path_shell=$as_dir/$ac_base
+                break
+              fi
+            done
+            case $ac_cv_path_shell in
+            (/*) break
+            esac
+          esac
+        done
+        rm -f conftest.c
       esac])
    AC_MSG_RESULT($ac_cv_path_shell)
    SHELL=$ac_cv_path_shell