From d81eae88894154f2383c060583ded07a56016948 Mon Sep 17 00:00:00 2001
From: Bart van Strien <bart.bes+projects@gmail.com>
Date: Sat, 14 Dec 2013 13:57:52 +0100
Subject: [PATCH] Scripts now automatically recompile on change on linux,
 auto.lua normalizes input names a bit more

---
 platform/unix/configure.ac | 5 +++++
 platform/unix/genmodules   | 9 ++++-----
 src/scripts/auto.lua       | 3 ++-
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/platform/unix/configure.ac b/platform/unix/configure.ac
index a54b3f592..4347329f0 100644
--- a/platform/unix/configure.ac
+++ b/platform/unix/configure.ac
@@ -121,6 +121,11 @@ AM_CONDITIONAL([LOVE_BUILD_EXE], [test "x$enable_exe" != xno])
 AM_CONDITIONAL([LOVE_NOMPG123], [test "x$enable_mpg123" == xno])
 AM_CONDITIONAL([LOVE_TARGET_OSX], [test "x$enable_osx" != xno])
 
+# Automatic script file rebuilding
+AC_CHECK_PROGS([LUA_EXECUTABLE], ["${with_lua}${with_luaversion}" "${with_lua}" "lua"], [:])
+AS_VAR_IF([LUA_EXECUTABLE], [:],
+		  [AC_MSG_WARN([Did not find a lua executable, you may need to update the scripts manually if you change them])], [])
+
 # Set our includes as automake variable
 AC_SUBST([LOVE_INCLUDES], ["$includes"])
 
diff --git a/platform/unix/genmodules b/platform/unix/genmodules
index f734c77cc..5be29fae5 100644
--- a/platform/unix/genmodules
+++ b/platform/unix/genmodules
@@ -115,6 +115,7 @@ AM_CPPFLAGS = -I$inc_current -I$inc_modules -I$inc_libraries -I$inc_libraries/en
 	\$(vorbisfile_CFLAGS)
 AUTOMAKE_OPTIONS = subdir-objects
 SUBDIRS =
+SUFFIXES = .lua .lua.h
 
 if LOVE_BUILD_EXE
 # LÖVE executable
@@ -134,11 +135,9 @@ endif
 endif
 
 # Compile scripts
-#scripts/%.lua.h: scripts/%.lua
-#	cd scripts; \
-#	lua auto.lua \$*
-#TODO: Figure out how to only do this on gnu make, and detect which lua
-#      executable to run
+.lua.lua.h:
+	cd scripts; \
+	\$(LUA_EXECUTABLE) auto.lua \$<
 
 # libLÖVE
 lib_LTLIBRARIES = liblove${love_suffix}.la
diff --git a/src/scripts/auto.lua b/src/scripts/auto.lua
index fdaa90212..c3cefd1ab 100644
--- a/src/scripts/auto.lua
+++ b/src/scripts/auto.lua
@@ -107,7 +107,8 @@ end
 for i, v in ipairs(arg) do
 	--run the auto function for every argument
 	--but do it with pcall, to catch errors
-	local ok, err = pcall(auto, v:gsub("%.lua$",""))
+	v = v:gsub("%.lua$", ""):gsub("^(.+)/", "") -- normalize input
+	local ok, err = pcall(auto, v)
 	if not ok then
 		--inform people we've failed
 		print(v .. ": " .. err)