X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fonceonly.m4;h=b86700f912acfc2873e655ca53d050056e57519d;hb=4bb97a4bd289fd0c917764399570b0d68fd9a612;hp=af56aa94484661e3adc151f26b52c77eb1a07606;hpb=4b7d3c8dd9977670c2b612608578fe1edb713f93;p=gnulib.git

diff --git a/m4/onceonly.m4 b/m4/onceonly.m4
index af56aa944..b86700f91 100644
--- a/m4/onceonly.m4
+++ b/m4/onceonly.m4
@@ -1,16 +1,14 @@
-# onceonly.m4 serial 2
-dnl Copyright (C) 2002, 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.
+# onceonly.m4 serial 5 (gettext-0.15)
+dnl Copyright (C) 2002-2003, 2006 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 This file defines some "once only" variants of standard autoconf macros.
-dnl   AC_CHECK_HEADERS_ONCE         like  AC_CHECK_HEADERS
-dnl   AC_CHECK_FUNCS_ONCE           like  AC_CHECK_FUNCS
-dnl   AC_CHECK_DECLS_ONCE           like  AC_CHECK_DECLS
-dnl   AC_REQUIRE([AC_HEADER_STDC])  like  AC_HEADER_STDC
+dnl   AC_CHECK_HEADERS_ONCE          like  AC_CHECK_HEADERS
+dnl   AC_CHECK_FUNCS_ONCE            like  AC_CHECK_FUNCS
+dnl   AC_CHECK_DECLS_ONCE            like  AC_CHECK_DECLS
+dnl   AC_REQUIRE([AC_FUNC_STRCOLL])  like  AC_FUNC_STRCOLL
 dnl The advantage is that the check for each of the headers/functions/decls
 dnl will be put only once into the 'configure' file. It keeps the size of
 dnl the 'configure' file down, and avoids redundant output when 'configure'
@@ -21,20 +19,25 @@ dnl inside an AC_DEFUNed function, the gl_CHECK_HEADERS macro call expands to
 dnl empty, and the check will be inserted before the body of the AC_DEFUNed
 dnl function.
 
-dnl Taken from Autoconf 2.50; can be removed once we assume 2.50 or later.
-define([m4_quote], [[$*]])
+dnl This file is only needed in autoconf <= 2.59.  Newer versions of autoconf
+dnl have this macro built-in.  But about AC_CHECK_DECLS_ONCE: note that in
+dnl autoconf >= 2.60 the symbol separator is a comma, whereas here it is
+dnl whitespace.
+
+dnl Autoconf version 2.57 or newer is recommended.
+AC_PREREQ(2.54)
 
 # AC_CHECK_HEADERS_ONCE(HEADER1 HEADER2 ...) is a once-only variant of
 # AC_CHECK_HEADERS(HEADER1 HEADER2 ...).
 AC_DEFUN([AC_CHECK_HEADERS_ONCE], [
   :
   AC_FOREACH([gl_HEADER_NAME], [$1], [
-    AC_DEFUN([gl_CHECK_HEADER_]m4_quote(translit(defn([gl_HEADER_NAME]),
-						 [-./], [___])), [
+    AC_DEFUN([gl_CHECK_HEADER_]m4_quote(translit(m4_defn([gl_HEADER_NAME]),
+                                                 [-./], [___])), [
       AC_CHECK_HEADERS(gl_HEADER_NAME)
     ])
     AC_REQUIRE([gl_CHECK_HEADER_]m4_quote(translit(gl_HEADER_NAME,
-						   [-./], [___])))
+                                                   [-./], [___])))
   ])
 ])
 
@@ -43,10 +46,10 @@ AC_DEFUN([AC_CHECK_HEADERS_ONCE], [
 AC_DEFUN([AC_CHECK_FUNCS_ONCE], [
   :
   AC_FOREACH([gl_FUNC_NAME], [$1], [
-    AC_DEFUN([gl_CHECK_FUNC_]defn([gl_FUNC_NAME]), [
-      AC_CHECK_FUNCS(defn([gl_FUNC_NAME]))
+    AC_DEFUN([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]), [
+      AC_CHECK_FUNCS(m4_defn([gl_FUNC_NAME]))
     ])
-    AC_REQUIRE([gl_CHECK_FUNC_]defn([gl_FUNC_NAME]))
+    AC_REQUIRE([gl_CHECK_FUNC_]m4_defn([gl_FUNC_NAME]))
   ])
 ])
 
@@ -55,9 +58,9 @@ AC_DEFUN([AC_CHECK_FUNCS_ONCE], [
 AC_DEFUN([AC_CHECK_DECLS_ONCE], [
   :
   AC_FOREACH([gl_DECL_NAME], [$1], [
-    AC_DEFUN([gl_CHECK_DECL_]defn([gl_DECL_NAME]), [
-      AC_CHECK_DECLS(defn([gl_DECL_NAME]))
+    AC_DEFUN([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]), [
+      AC_CHECK_DECLS(m4_defn([gl_DECL_NAME]))
     ])
-    AC_REQUIRE([gl_CHECK_DECL_]defn([gl_DECL_NAME]))
+    AC_REQUIRE([gl_CHECK_DECL_]m4_defn([gl_DECL_NAME]))
   ])
 ])