From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sun, 29 Apr 2007 05:24:26 +0000 (+0000)
Subject: * m4/shell.m4 (AC_PROG_SHELL): Check for old-fashioned shells that
X-Git-Tag: v1.3.13~45
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=79c3261c8b9d2ce4cddb488bdee4b087c2e22ee8;p=debian%2Fgzip

* m4/shell.m4 (AC_PROG_SHELL): Check for old-fashioned shells that
don't allow "(" in front of case labels.  Problem reported by midair
in <http://lists.gnu.org/archive/html/bug-gzip/2007-04/msg00004.html>.
Also, check for buggy shells that require ";;" before "esac".
---

diff --git a/ChangeLog b/ChangeLog
index c20f145..4f2ea42 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2007-04-28  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* m4/shell.m4 (AC_PROG_SHELL): Check for old-fashioned shells that
+	don't allow "(" in front of case labels.  Problem reported by midair
+	in <http://lists.gnu.org/archive/html/bug-gzip/2007-04/msg00004.html>.
+	Also, check for buggy shells that require ";;" before "esac".
+
 2007-04-13  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* NEWS: Version 1.3.12 released.
diff --git a/m4/shell.m4 b/m4/shell.m4
index abdd2ba..921ea0d 100644
--- a/m4/shell.m4
+++ b/m4/shell.m4
@@ -37,15 +37,15 @@ AC_DEFUN([AC_PROG_SHELL],
       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;;
+	fi
       esac
 
       case $ac_cv_path_shell in
-      no)
+      (no)
 	# Prefer shells that are more likely to be installed in the
 	# same place on all hosts of this platform.  Therefore, prefer
 	# shells in /bin and /usr/bin to shells in the installer's
@@ -57,7 +57,7 @@ AC_DEFUN([AC_PROG_SHELL],
 	do
 	  IFS=$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
@@ -66,11 +66,11 @@ AC_DEFUN([AC_PROG_SHELL],
 	      fi
 	    done
 	    case $ac_cv_path_shell in
-	    /*) break;;
-	    esac;;
+	    (/*) break
+	    esac
 	  esac
 	done
-	rm -f conftest.c;;
+	rm -f conftest.c
       esac])
    AC_MSG_RESULT($ac_cv_path_shell)
    SHELL=$ac_cv_path_shell