-# libunistring.m4 serial 7
+# libunistring.m4 serial 9
dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl Define gl_LIBUNISTRING using AC_DEFUN_ONCE for Autoconf >= 2.64, in order
dnl to avoid warnings like
dnl "warning: AC_REQUIRE: `gl_LIBUNISTRING' was expanded before it was required".
-m4_version_prereq([2.64],[AC_DEFUN_ONCE],[AC_DEFUN])([gl_LIBUNISTRING],
+dnl This is tricky because of the way 'aclocal' is implemented:
+dnl - It requires defining an auxiliary macro whose name ends in AC_DEFUN.
+dnl Otherwise aclocal's initial scan pass would miss the macro definition.
+dnl - It requires a line break inside the AC_DEFUN_ONCE and AC_DEFUN expansions.
+dnl Otherwise aclocal would emit many "Use of uninitialized value $1"
+dnl warnings.
+m4_define([gl_libunistring_AC_DEFUN],
+ m4_version_prereq([2.64],
+ [[AC_DEFUN_ONCE(
+ [$1], [$2])]],
+ [[AC_DEFUN(
+ [$1], [$2])]]))
+gl_libunistring_AC_DEFUN([gl_LIBUNISTRING],
[
- AC_BEFORE([$0], [gl_LIBUNISTRING_LIBSOURCE])
+ AC_BEFORE([$0], [gl_LIBUNISTRING_MODULE])
AC_BEFORE([$0], [gl_LIBUNISTRING_LIBHEADER])
AC_BEFORE([$0], [gl_LIBUNISTRING_LIB_PREPARE])