Patch to Add Lua Support

[Ken Smith]

Hi All,

Please consider this patch a request for comments.  I have added Lua
5.1.1 support to GNU make 3.81.  Attached to this email are patches
for two files.  The patch for  function.c should work for any
platform.  The patches for the Makefile were generated under Darwin
and Linux.  Both are included to give a bigger picture to the nature
of the changes required to build this patch.  You may have to modify
your Makefile by hand to get this patch to build and/or link.  This is
just to get you up and running since, if this patch is accepted, the
autoconf processing would need to be modified to properly support
linking to Lua.

Readers of this list may know that you can apply these patches with
the following steps.

 tar xjvf make-3.81.tar.bz2
 cd make-3.81
 ./configure
 patch -p1 < make-3.81-lua-5.1.1-Makefile.patch
 patch -p1 < make-3.81-lua-5.1.1-function.c.patch

The attached GNUmakefile will produce something akin to the following
output when run with a patched GNU make 3.81.

 Detected Lua support.
 lua result = "5"
 Make is 3.81 or later.
 Hello from Lua (x = table: 0x305380)

 t.1 = 4
 t.2 = 5
 t.something_else = true
 t.x.1 = 1
 t.x.2 = 2
 t.x.3 = 3
 t.hi = value

 Terminado.

This patch requires Lua 5.1.1 to be installed but requires no
modifications to the Lua codebase.  The patch adds one function to
Lua's global namespace, "printmake", which prints a string back to
make rather than to stdout.  You can use $(lua printmake('text')) like
you would use $(shell echo 'text').

This patch was developed under Darwin 8.8.1 (Mac OS X 10.4.8 Intel).

 Ken

make-3.81-lua-5.1.1-Makefile.patch
Description: Binary data

make-3.81-lua-5.1.1-function.c.patch
Description: Binary data

GNUmakefile
Description: Binary data

make-3.81-lua-5.1.1-Makefile-Gentoo-Linux-2.6-ppc.patch
Description: Binary data