(gl_GETDATE): Remove AC_FUNC_ALLOCA.

[gnulib.git] / m4 / getopt.m4

diff --git a/m4/getopt.m4 b/m4/getopt.m4
index 5ab3570..dcd333b 100644 (file)
--- a/m4/getopt.m4
+++ b/m4/getopt.m4
@@ -1,4 +1,4 @@
-# getopt.m4 serial 3
+# getopt.m4 serial 6
 dnl Copyright (C) 2002, 2003, 2004 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
@@ -15,18 +15,9 @@ AC_DEFUN([gl_GETOPT_SUBSTITUTE],
   GETOPT_H=getopt.h
   AC_LIBOBJ([getopt])
   AC_LIBOBJ([getopt1])
-  AC_DEFINE([optarg], [rpl_optarg],
-    [Define to rpl_optarg if the replacement variable should be used.])
-  AC_DEFINE([optind], [rpl_optind],
-    [Define to rpl_optind if the replacement variable should be used.])
-  AC_DEFINE([optopt], [rpl_optopt],
-    [Define to rpl_optopt if the replacement variable should be used.])
-  AC_DEFINE([getopt], [rpl_getopt],
-    [Define to rpl_getopt if the replacement function should be used.])
-  AC_DEFINE([getopt_long], [rpl_getopt_long],
-    [Define to rpl_getopt_long if the replacement function should be used.])
-  AC_DEFINE([getopt_long_only], [rpl_getopt_long_only],
-    [Define to rpl_getopt_long_only if the replacement function should be used.])
+  AC_DEFINE([__GETOPT_PREFIX], [[rpl_]],
+    [Define to rpl_ if the getopt replacement functions and variables
+     should be used.])
   AC_SUBST([GETOPT_H])
 ])
 
@@ -34,12 +25,18 @@ AC_DEFUN([gl_GETOPT],
 [
   gl_PREREQ_GETOPT
 
-  GETOPT_H=
-  AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
-  AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h])
+  if test -z "$GETOPT_H"; then
+    GETOPT_H=
+    AC_CHECK_HEADERS([getopt.h], [], [GETOPT_H=getopt.h])
+    AC_CHECK_FUNCS([getopt_long_only], [], [GETOPT_H=getopt.h])
 
-  if test -n "$GETOPT_H"; then
-     gl_GETOPT_SUBSTITUTE
+    dnl BSD getopt_long uses an incompatible method to reset option processing,
+    dnl and (as of 2004-10-15) mishandles optional option-arguments.
+    AC_CHECK_DECL([optreset], [GETOPT_H=getopt.h], [], [#include <getopt.h>])
+
+    if test -n "$GETOPT_H"; then
+      gl_GETOPT_SUBSTITUTE
+    fi
   fi
 ])