From 6048f87e3c07d03df8a59da58c81608c5375f6dc Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Thu, 26 Sep 2013 00:41:14 +0200
Subject: Add initial Lua scripting support

This is preliminary. There are still tons of issues, and any aspect
of scripting may change in the future. I decided to merge this
(preliminary) work now because it makes it easier to develop it, not
because it's done. lua.rst is clear enough about it (plus some
sarcasm).

This requires linking to Lua. Lua has no official pkg-config file, but
there are distribution specific .pc files, all with different names.
Adding a non-pkg-config based configure test was considered, but we'd
rather not.

One major complication is that libquvi links against Lua too, and if
the Lua version is different from mpv's, you will get a crash as soon
as libquvi uses Lua. (libquvi by design always runs when a file is
opened.) I would consider this the problem of distros and whoever
builds mpv, but to make things easier for users, we add a terrible
runtime test to the configure script, which probes whether libquvi
will crash. This is disabled when cross-compiling, but in that case
we hope the user knows what he is doing.
---
 Makefile | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 5199c7d28b..52741b8c7f 100644
--- a/Makefile
+++ b/Makefile
@@ -123,6 +123,8 @@ SOURCES-$(WAYLAND)              += video/out/vo_wayland.c video/out/wayland_comm
 SOURCES-$(VF_LAVFI)             += video/filter/vf_lavfi.c
 SOURCES-$(AF_LAVFI)             += audio/filter/af_lavfi.c
 
+SOURCES-$(LUA)                  += mpvcore/mp_lua.c
+
 ifeq ($(HAVE_AVUTIL_REFCOUNTING),no)
     SOURCES-yes                 += video/decode/lavc_dr1.c
 endif
@@ -397,6 +399,14 @@ sub/osd_libass.c: sub/osd_font.h
 sub/osd_font.h: TOOLS/file2string.pl sub/osd_font.otf
 	./$^ >$@
 
+mpvcore/mp_lua.c: mpvcore/lua/defaults.inc
+mpvcore/lua/defaults.inc: TOOLS/file2string.pl mpvcore/lua/defaults.lua
+	./$^ >$@
+
+mpvcore/mp_lua.c: mpvcore/lua/assdraw.inc
+mpvcore/lua/assdraw.inc: TOOLS/file2string.pl mpvcore/lua/assdraw.lua
+	./$^ >$@
+
 # ./configure must be rerun if it changed
 config.mak: configure
 	@echo "############################################################"
@@ -495,6 +505,8 @@ clean:
 	-$(RM) video/out/gl_video_shaders.h
 	-$(RM) video/out/x11_icon.inc
 	-$(RM) sub/osd_font.h
+	-$(RM) mpvcore/lua/defaults.inc
+	-$(RM) mpvcore/lua/assdraw.inc
 
 distclean: clean
 	-$(RM) config.log config.mak config.h TAGS tags
-- 
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