From 488e1692cc16fdf4e15fd1a3e01f7dcd901e7b6f Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 4 Feb 2014 11:24:01 +0000
Subject: [PATCH] From Stephan Huber, added support for compile source code of
 lua with the lua plugin

---
 src/osgPlugins/CMakeLists.txt     |  2 +-
 src/osgPlugins/lua/CMakeLists.txt | 41 ++++++++++++++++++++++++++++++-
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/src/osgPlugins/CMakeLists.txt b/src/osgPlugins/CMakeLists.txt
index 5aab0108d..0010b24bd 100644
--- a/src/osgPlugins/CMakeLists.txt
+++ b/src/osgPlugins/CMakeLists.txt
@@ -263,7 +263,7 @@ ADD_SUBDIRECTORY(trk)
 #
 # ScriptEngines
 #
-IF (LUA_LIBRARIES AND LUA_INCLUDE_DIR)
+IF ((LUA_LIBRARIES AND LUA_INCLUDE_DIR) OR (LUA_SOURCE_DIR AND LUA_INCLUDE_DIR))
     ADD_SUBDIRECTORY(lua)
 ENDIF()
 
diff --git a/src/osgPlugins/lua/CMakeLists.txt b/src/osgPlugins/lua/CMakeLists.txt
index da94edf0a..b33d21d54 100644
--- a/src/osgPlugins/lua/CMakeLists.txt
+++ b/src/osgPlugins/lua/CMakeLists.txt
@@ -6,7 +6,46 @@ SET(TARGET_SRC
     ReaderWriterLua.cpp
 )
 
-SET(TARGET_EXTERNAL_LIBRARIES ${TARGET_EXTERNAL_LIBRARIES} ${LUA_LIBRARY})
+IF(LUA_LIBRARY)
+  SET(TARGET_EXTERNAL_LIBRARIES ${TARGET_EXTERNAL_LIBRARIES} ${LUA_LIBRARY})
+ENDIF()
+# Some platforms do not provide an easy way to compile lua, include the source-files directly
+IF(LUA_SOURCE_DIR)
+  SET(TARGET_SRC
+    ${TARGET_SRC}
+    ${LUA_SOURCE_DIR}/lauxlib.c
+    ${LUA_SOURCE_DIR}/lbaselib.c
+    ${LUA_SOURCE_DIR}/lbitlib.c
+    ${LUA_SOURCE_DIR}/lcode.c
+    ${LUA_SOURCE_DIR}/lcorolib.c
+    ${LUA_SOURCE_DIR}/lctype.c
+    ${LUA_SOURCE_DIR}/ldblib.c
+    ${LUA_SOURCE_DIR}/ldebug.c
+    ${LUA_SOURCE_DIR}/ldo.c
+    ${LUA_SOURCE_DIR}/ldump.c
+    ${LUA_SOURCE_DIR}/lfunc.c
+    ${LUA_SOURCE_DIR}/lgc.c
+    ${LUA_SOURCE_DIR}/linit.c
+    ${LUA_SOURCE_DIR}/liolib.c
+    ${LUA_SOURCE_DIR}/llex.c
+    ${LUA_SOURCE_DIR}/lmathlib.c
+    ${LUA_SOURCE_DIR}/lmem.c
+    ${LUA_SOURCE_DIR}/loadlib.c
+    ${LUA_SOURCE_DIR}/lobject.c
+    ${LUA_SOURCE_DIR}/lopcodes.c
+    ${LUA_SOURCE_DIR}/loslib.c
+    ${LUA_SOURCE_DIR}/lparser.c
+    ${LUA_SOURCE_DIR}/lstate.c
+    ${LUA_SOURCE_DIR}/lstring.c
+    ${LUA_SOURCE_DIR}/lstrlib.c
+    ${LUA_SOURCE_DIR}/ltable.c
+    ${LUA_SOURCE_DIR}/ltablib.c
+    ${LUA_SOURCE_DIR}/ltm.c
+    ${LUA_SOURCE_DIR}/lundump.c
+    ${LUA_SOURCE_DIR}/lvm.c
+    ${LUA_SOURCE_DIR}/lzio.c
+  )
+ENDIF()
 INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIR} )
 
 #### end var setup  ###