* Respect user CXXFLAGS
* Build out-of-source

--- a/src/bind/CMakeLists.txt
+++ b/src/bind/CMakeLists.txt
@@ -1,16 +1,25 @@
-ADD_CUSTOM_TARGET(
-     swig
-     ${SWIG_EXECUTABLE} -lua -c++ -o ${JVGS_BINARY_DIR}/src/bind/jvgslua.cpp ${JVGS_BINARY_DIR}/src/bind/jvgslua.i
+ADD_CUSTOM_COMMAND(
+    OUTPUT
+        ${CMAKE_CURRENT_BINARY_DIR}/jvgslua.cpp
+    COMMAND
+        ${SWIG_EXECUTABLE} -lua -c++ -o ${CMAKE_CURRENT_BINARY_DIR}/jvgslua.cpp ${CMAKE_CURRENT_SOURCE_DIR}/jvgslua.i
+    VERBATIM
 )
 
 ADD_LIBRARY(
     bind STATIC
-    jvgslua.cpp
+    ${CMAKE_CURRENT_BINARY_DIR}/jvgslua.cpp
     ScriptManager.cpp
 )
 
 ADD_DEPENDENCIES( bind swig )
 
+TARGET_INCLUDE_DIRECTORIES(
+    bind
+    PRIVATE
+    ${CMAKE_CURRENT_SOURCE_DIR}
+)
+
 TARGET_LINK_LIBRARIES(
     bind
     ${LUA_LIBRARIES}
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,4 +1,4 @@
-SET( CMAKE_CXX_FLAGS "-DTIXML_USE_STL -ggdb" )
+SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DTIXML_USE_STL" )
 
 INCLUDE_DIRECTORIES(
     ${SDL_INCLUDE_DIR}