Somehow I got this autoconf warning:
configure.ac:127: warning: AC_REQUIRE: `AM_ICONV' was expanded before it was
required
AM_ICONV is AC_REQUIREd in many places, but documented as an invokable macro in
the gettext documentation. Therefore it makes sense to use AC_DEFUN_ONCE. I'm
applying this:
2010-05-16 Bruno Haible <br...@clisp.org>
Avoid autoconf warnings about AM_ICONV.
* m4/iconv.m4 (AM_ICONV): Define using AM_DEFUN_ONCE for autoconf >=
2.64.
--- m4/iconv.m4.orig Sun May 16 23:46:09 2010
+++ m4/iconv.m4 Sun May 16 23:45:56 2010
@@ -1,4 +1,4 @@
-# iconv.m4 serial 9 (gettext-0.18)
+# iconv.m4 serial 10 (gettext-0.18.1)
dnl Copyright (C) 2000-2002, 2007-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -170,7 +170,10 @@
AC_SUBST([LTLIBICONV])
])
-AC_DEFUN([AM_ICONV],
+dnl Define AM_ICONV using AC_DEFUN_ONCE for Autoconf >= 2.64, in order to
+dnl avoid warnings like
+dnl "warning: AC_REQUIRE: `AM_ICONV' was expanded before it was required".
+m4_version_prereq([2.64],[AC_DEFUN_ONCE],[AC_DEFUN])([AM_ICONV],
[
AM_ICONV_LINK
if test "$am_cv_func_iconv" = yes; then
