--- /dev/null
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_lua.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_WITH_LUA
+# AX_PROG_LUA [(MIN-VERSION, [TOO-BIG-VERSION])]
+# AX_LUA_VERSION (MIN-VERSION, [TOO-BIG-VERSION])
+# AX_LUA_HEADERS
+# AX_LUA_HEADERS_VERSION (MIN-VERSION, [TOO-BIG-VERSION])
+# AX_LUA_LIBS
+# AX_LUA_READLINE
+#
+# DESCRIPTION
+#
+# Detect Lua interpreter, headers and libraries, optionally enforcing a
+# particular range of versions. If only one version is given, then exactly
+# this version is required.
+#
+# AX_WITH_LUA searches for a Lua interpreter and defines LUA if found.
+#
+# AX_PROG_LUA searches for a Lua interpreter in the given version range,
+# if any, and defines LUA if found, or stops with an error if not.
+#
+# AX_LUA_VERSION checks that the version of Lua is at least MIN-VERSION
+# and less than TOO-BIG-VERSION, if given.
+#
+# AX_LUA_HEADERS searches for Lua headers and defines HAVE_LUA_H and
+# HAVE_LUALIB_H if found, and defines LUA_INCLUDE to the preprocessor
+# flags needed, if any.
+#
+# AX_LUA_HEADERS_VERSION checks that the Lua headers' version is at least
+# MIN-VERSION, and less than TOO-BIG-VERSION, if given.
+#
+# AX_LUA_LIBS searches for Lua libraries and defines LUA_LIB if found.
+#
+# AX_LUA_READLINE configures Lua to be built with readline support, if
+# available. This macro requires AX_LIB_READLINE.
+#
+# Versions are specified as three-digit integers whose first digit is the
+# major version and last two are the minor version (the same format as
+# LUA_VERSION_NUM in lua.h); e.g. 501 for Lua 5.1. The revision (e.g. the
+# "3" in "5.1.3") is ignored.
+#
+# The following options are added by these macros:
+#
+# --with-lua-suffix=ARG Lua binaries and library files are
+# suffixed with ARG.
+#
+# LICENSE
+#
+# Copyright (c) 2011 Reuben Thomas <rrt@sc3d.org>
+# Copyright (c) 2009 Matthieu Moy <Matthieu.Moy@imag.fr>
+# Copyright (c) 2009 Tom Payne <twpayne@gmail.com>
+#
+# 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 3 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.
+
+#serial 14
+
+dnl Helper function from previous metaconf methods
+dnl
+ AC_DEFUN([AX_CHECK_LOCAL_LUA],
+ [
+ AC_MSG_CHECKING([Looking for lua in lua5.1 or lua-5.1.4])
+ lua_myincs="lua5.1 lua-5.1.4"
+ lua_otherincs=""
+ lua_thisincl=""
+ for lua_thisincl in $myincs; do
+ if test -r "`pwd`/$lua_thisincl/src/lua.h"; then
+ lua_h_path="`pwd`/$lua_thisincl/src"
+ elif test -r "`pwd`/$lua_thisincl/lua.h"; then
+ lua_h_path="`pwd`/$lua_thisincl"
+ else
+ lua_otherincs="$lua_otherincs $thisincl $thisincl/src"
+ fi
+ done
+ if test -r "$lua_h_path" ; then
+ AC_MSG_RESULT([found at $lua_h_path])
+ AC_MSG_CHECKING([Checking for local lua lib])
+ if test -f "$lua_h_path/liblua.a"; then
+ AC_MSG_RESULT([found])
+ lua_ldflags="-L$lua_h_path"
+ lua_libs="$libs"
+ else
+ AC_MSG_NOTICE([Could not locate local LUA library.])
+ AC_MSG_ERROR([Either install LUA development global libraries or compile your local LUA installation])
+ fi
+ fi
+ ])
+
+AC_DEFUN([AX_FIND_LUA],[
+dnl First check if its int he normal spot.. /usr/include.. If it is.. forget the rest
+ AC_MSG_CHECKING([for lua.h in /usr/include..])
+ if test -f "/usr/include/lua.h"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ AC_MSG_NOTICE([Cheking other possible global loations...])
+ lua_myincs="/opt/ports/include /usr/include/lua5.1"
+ for thisincl in $lua_myincs
+ do
+ AC_MSG_CHECKING([for lueader header in $thisincl])
+ if test -f "$thisincl/lua.h"
+ then
+ lua_h_path="$thisincl"
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+ done
+ fi
+ if test -z "$lua_h_path"; then
+ AC_MSG_NOTICE([Unable to find global lua.h.])
+ AX_CHECK_LOCAL_LUA()
+ fi
+ AC_SUBST([lua_h_path])
+ dnl Now Lets look for our library
+ LDFLAGS="$LDFLAGS $lua_ldflags"
+ CFLAGS="$CFLAGS -I$lua_h_path"
+ AC_CHECK_LIB([lua5.1], [lua_call], , AC_MSG_ERROR([CobraMUSH requires lua libraries.]))
+])
+
+dnl Helper function to declare extra options
+AC_DEFUN([_AX_LUA_OPTS],
+ [AC_ARG_WITH([lua-suffix],
+ [AS_HELP_STRING([--with-lua-suffix=ARG],
+ [Lua binary and library files are suffixed with ARG])])])dnl
+
+AC_DEFUN([AX_WITH_LUA],
+ [_AX_LUA_OPTS
+ if test "x$LUA" = x; then
+ AC_PATH_PROG(LUA, lua$with_lua_suffix)
+ fi])dnl
+
+AC_DEFUN([AX_PROG_LUA],
+ [lua_min_version=$1
+ lua_max_version=$2
+ AX_WITH_LUA
+ if test -z "$LUA"; then
+ AC_MSG_FAILURE([Lua not found])
+ fi
+ if test -n "$lua_min_version"; then
+ AX_LUA_VERSION($lua_min_version, $lua_max_version)
+ fi
+ AC_SUBST(LUA)])dnl
+
+dnl Helper function to parse minimum & maximum versions
+AC_DEFUN([_AX_LUA_VERSIONS],
+ [lua_min_version=$1
+ lua_max_version=$2
+ if test "x$lua_min_version" = x; then
+ lua_min_version=0
+ fi
+ if test "x$lua_max_version" = x; then
+ lua_max_version=$(($lua_min_version + 1))
+ fi])
+
+AC_DEFUN([AX_LUA_VERSION],
+ [_AX_LUA_OPTS
+ _AX_LUA_VERSIONS($1, $2)
+ AC_MSG_CHECKING([Lua version is in range $1 <= v < $2])
+ if test "x$LUA" != x; then
+ lua_text_version=$(LUA_INIT= $LUA -e 'print(_VERSION)' 2>&1 | cut -d' ' -f2)
+ case $lua_text_version in
+ 5.2*)
+ lua_version=502
+ ;;
+ 5.1*)
+ lua_version=501
+ ;;
+ 5.0*)
+ lua_version=500
+ ;;
+ 4.0*)
+ lua_version=400
+ ;;
+ *)
+ lua_version=-1
+ ;;
+ esac
+ if test $lua_version -ge "$lua_min_version" && test $lua_version -lt "$lua_max_version"; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ AC_MSG_FAILURE([Lua version not in desired range.])
+ fi
+ else
+ AC_MSG_RESULT([no])
+ AC_MSG_FAILURE([Lua version not in desired range.])
+ fi])dnl
+
+AC_DEFUN([AX_LUA_HEADERS],
+ [_AX_LUA_OPTS
+ LUA_OLD_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $LUA_INCLUDE"
+ AC_CHECK_HEADERS([lua.h lualib.h])
+ CPPFLAGS="$LUA_OLD_CPPFLAGS"]
+ )dnl
+
+dnl Finder header location and place it in LUA_HEADER_PATH
+
+AC_DEFUN([AX_LUA_LIBS],
+ [_AX_LUA_OPTS
+ AC_CHECK_LIB([m], [exp], [lua_extra_libs="$lua_extra_libs -lm"], [])
+ AC_CHECK_LIB([dl], [dlopen], [lua_extra_libs="$lua_extra_libs -ldl"], [])
+ AC_CHECK_LIB([lua$with_lua_suffix],
+ [lua_call],
+ [LUA_LIB="$LUA_LIB -llua$with_lua_suffix $lua_extra_libs"],
+ [],
+ [$LUA_LIB $lua_extra_libs])])dnl
+
+AC_DEFUN([AX_LUA_HEADERS_VERSION],
+ [_AX_LUA_OPTS
+ _AX_LUA_VERSIONS($1, $2)
+ AC_MSG_CHECKING([lua.h version is in range $1 <= v < $2])
+ LUA_OLD_LIBS="$LIBS"
+ LIBS="$LIBS $LUA_LIB"
+ LUA_OLD_CPPFLAGS="$CPPFLAGS"
+ CPPFLAGS="$CPPFLAGS $LUA_INCLUDE"
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#include <lua.h>
+#include <stdlib.h>
+#include <stdio.h>
+int main()
+{
+ printf("(found %s, %d)... ", LUA_VERSION, LUA_VERSION_NUM);
+ if (LUA_VERSION_NUM >= $lua_min_version && LUA_VERSION_NUM < $lua_max_version)
+ exit(EXIT_SUCCESS);
+ exit(EXIT_FAILURE);
+}
+]])],
+ [AC_MSG_RESULT([yes])],
+ [AC_MSG_RESULT([no])
+ AC_MSG_FAILURE([lua.h version not in desired range])])
+ LIBS="$LUA_OLD_LIBS"
+ CPPFLAGS="$LUA_OLD_CPPFLAGS"])dnl
+
+AC_DEFUN([AX_LUA_READLINE],
+ [AX_LIB_READLINE
+ if test -n "$ac_cv_header_readline_readline_h" && test -n "$ac_cv_header_readline_history_h"; then
+ LUA_LIBS_CFLAGS="-DLUA_USE_READLINE $LUA_LIBS_CFLAGS"
+ fi])dnl
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