Rename ADL_* prefixes to AX_ prefixes.

1 files changed, 61 insertions, 0 deletions

diff --git a/m4/ax_func_getopt_long.m4 b/m4/ax_func_getopt_long.m4
new file mode 100644
index 0000000..cb25dce
--- /dev/null
+++ b/m4/ax_func_getopt_long.m4
@@ -0,0 +1,61 @@
+# ===========================================================================
+#      http://www.nongnu.org/autoconf-archive/ax_func_getopt_long.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_FUNC_GETOPT_LONG
+#
+# DESCRIPTION
+#
+#   Check for getopt_long support.
+#
+#   This assume that the standard getopt.h file (from GNU libc) is available
+#   as lib/gnugetopt.h. If needed, this file will be linked as getopt.h, but
+#   we want to default to the system's getopt.h file. (See
+#   http://sources.redhat.com/ml/automake/2000-09/msg00041.html for an
+#   explanation about why using the system's getopt.h file is important.)
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Alexandre Duret-Lutz <adl@gnu.org>
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.
+
+AC_DEFUN([AX_FUNC_GETOPT_LONG],
+ [AC_PREREQ(2.49)dnl
+  # clean out junk possibly left behind by a previous configuration
+  rm -f lib/getopt.h
+  # Check for getopt_long support
+  AC_CHECK_HEADERS([getopt.h])
+  AC_CHECK_FUNCS([getopt_long],,
+   [# FreeBSD has a gnugetopt library for this
+    AC_CHECK_LIB([gnugetopt],[getopt_long],[AC_DEFINE([HAVE_GETOPT_LONG])],
+     [# use the GNU replacement
+      AC_LIBOBJ(getopt)
+      AC_LIBOBJ(getopt1)
+      AC_CONFIG_LINKS([lib/getopt.h:lib/gnugetopt.h])])])])