From 430b62322355c0bfe6233586c9823013d60a3335 Mon Sep 17 00:00:00 2001
From: Mattes D <github@xoft.cz>
Date: Sun, 17 Jul 2016 16:23:29 +0200
Subject: Use system Lua, if available, to generate bindings.

Closes #1031.
---
 src/Bindings/CMakeLists.txt | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

(limited to 'src/Bindings/CMakeLists.txt')

diff --git a/src/Bindings/CMakeLists.txt b/src/Bindings/CMakeLists.txt
index 5c79225cc..05d4c7e4f 100644
--- a/src/Bindings/CMakeLists.txt
+++ b/src/Bindings/CMakeLists.txt
@@ -56,7 +56,6 @@ set (BINDING_OUTPUTS
 )
 
 set(BINDING_DEPENDENCIES
-	tolua
 	../Bindings/AllToLua.pkg
 	../Bindings/BindingsProcessor.lua
 	../Bindings/LuaFunctions.h
@@ -139,17 +138,21 @@ set(BINDING_DEPENDENCIES
 )
 
 if (NOT MSVC)
-	ADD_CUSTOM_COMMAND(
-		# add any new generated bindings here
-		OUTPUT ${BINDING_OUTPUTS}
-
-		# Regenerate bindings:
-		COMMAND tolua -L BindingsProcessor.lua -o Bindings.cpp -H Bindings.h AllToLua.pkg
-		WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
-
-		# add any new generation dependencies here
-		DEPENDS ${BINDING_DEPENDENCIES}
-	)
+	if (HAS_LUA_INTERPRETER)
+		ADD_CUSTOM_COMMAND(
+			OUTPUT ${BINDING_OUTPUTS}
+			COMMAND lua BindingsProcessor.lua
+			WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+			DEPENDS ${BINDING_DEPENDENCIES}
+		)
+	else()
+		ADD_CUSTOM_COMMAND(
+			OUTPUT ${BINDING_OUTPUTS}
+			COMMAND tolua -L BindingsProcessor.lua -o Bindings.cpp -H Bindings.h AllToLua.pkg
+			WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+			DEPENDS ${BINDING_DEPENDENCIES} tolua
+		)
+	endif()
 endif ()
 
 set_source_files_properties(${BINDING_OUTPUTS} PROPERTIES GENERATED TRUE)
-- 
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