| # 00gnulib.m4 serial 2 |
| dnl Copyright (C) 2009-2011 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 must be named something that sorts before all other |
| dnl gnulib-provided .m4 files. It is needed until such time as we can |
| dnl assume Autoconf 2.64, with its improved AC_DEFUN_ONCE semantics. |
| |
| # AC_DEFUN_ONCE([NAME], VALUE) |
| # ---------------------------- |
| # Define NAME to expand to VALUE on the first use (whether by direct |
| # expansion, or by AC_REQUIRE), and to nothing on all subsequent uses. |
| # Avoid bugs in AC_REQUIRE in Autoconf 2.63 and earlier. This |
| # definition is slower than the version in Autoconf 2.64, because it |
| # can only use interfaces that existed since 2.59; but it achieves the |
| # same effect. Quoting is necessary to avoid confusing Automake. |
| m4_version_prereq([2.63.263], [], |
| [m4_define([AC][_DEFUN_ONCE], |
| [AC][_DEFUN([$1], |
| [AC_REQUIRE([_gl_DEFUN_ONCE([$1])], |
| [m4_indir([_gl_DEFUN_ONCE([$1])])])])]dnl |
| [AC][_DEFUN([_gl_DEFUN_ONCE([$1])], [$2])])]) |
| |
| # gl_00GNULIB |
| # ----------- |
| # Witness macro that this file has been included. Needed to force |
| # Automake to include this file prior to all other gnulib .m4 files. |
| AC_DEFUN([gl_00GNULIB]) |
