From d9f67edb7d0664f7527c9f08a847b5314c3b7e81 Mon Sep 17 00:00:00 2001
From: "Robert G. Jakabosky" <bobby@sharedrealm.com>
Date: Sun, 4 Sep 2011 07:03:35 -0700
Subject: [PATCH] Improve CMake build script.

---
 CMakeLists.txt           | 13 +++++++--
 cmake/CustomMacros.cmake | 61 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+), 3 deletions(-)
 create mode 100644 cmake/CustomMacros.cmake

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 502ab89..1d0ed89 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,8 @@ set(BUILD_SHARED_LIBS TRUE)
 
 set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
 
-set(INSTALL_CMOD share/lua/cmod CACHE PATH "Directory to install Lua binary modules (configure lua via LUA_CPATH)")
+set(INSTALL_CMOD ${CMAKE_INSTALL_PREFIX}/lib/lua/5.1 CACHE PATH
+				"Directory to install Lua binary modules (configure lua via LUA_CPATH)")
 set(LUA_NATIVE_OBJECTS_PATH ../LuaNativeObjects CACHE PATH
 				"Directory to LuaNativeObjects bindings generator.")
 set(USE_PRE_GENERATED_BINDINGS TRUE CACHE BOOL
@@ -24,12 +25,17 @@ include(FindLua51)
 if(NOT ${LUA51_FOUND})
     message(FATAL_ERROR "The FindLua51 module could not find lua :-(")
 endif()
-set(COMMON_LIBS "${COMMON_LIBS};${LUA_LIBRARIES}")
+## MAC OSX needs extra linker flags
+if(APPLE)
+	set(COMMON_LDFLAGS "${COMMON_LDFLAGS} -undefined dynamic_lookup")
+endif()
 
 ## find threads
 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
 include(FindThreads)
 
+include(CustomMacros)
+
 ## LuaNativeObjects
 include(LuaNativeObjects)
 
@@ -52,7 +58,8 @@ endif()
 add_library(lua-llthreads MODULE ${LUA_LLTHREADS_SRC})
 target_link_libraries(lua-llthreads ${COMMON_LIBS} ${CMAKE_THREAD_LIBS_INIT})
 set_target_properties(lua-llthreads PROPERTIES PREFIX "")
-set_target_properties(lua-llthreads PROPERTIES COMPILE_FLAGS "${COMMON_CFLAGS}")
+add_target_properties(lua-llthreads COMPILE_FLAGS "${COMMON_CFLAGS}")
+add_target_properties(lua-llthreads LINK_FLAGS "${LD_FLAGS} ${COMMON_LDFLAGS}")
 set_target_properties(lua-llthreads PROPERTIES OUTPUT_NAME llthreads)
 
 install(TARGETS lua-llthreads
diff --git a/cmake/CustomMacros.cmake b/cmake/CustomMacros.cmake
new file mode 100644
index 0000000..312eeff
--- /dev/null
+++ b/cmake/CustomMacros.cmake
@@ -0,0 +1,61 @@
+## Orignal Macros copied from lighttpd 2.0
+
+## modules are without the "lib" prefix
+
+macro(setup_static_modules TARGET)
+	file(WRITE ${TARGET}_builtins.h "/* auto-generated by CMake build do not edit */\n\n")
+endmacro(setup_static_modules)
+
+macro(add_module TARGET MODNAME)
+	set(_static_mod ${BUILD_STATIC})
+
+	## create list of module source files.
+	set(_srcfiles)
+	set(_def_module_src ${CMAKE_CURRENT_SOURCE_DIR}/modules/${MODNAME}.c)
+	if(EXISTS ${_def_module_src})
+		set(_srcfiles ${_def_module_src})
+	endif(EXISTS ${_def_module_src})
+	foreach(_srcfile ${ARGN})
+		if(_srcfile STREQUAL "STATIC")
+			set(_static_mod TRUE)
+		else(_srcfile STREQUAL "STATIC")
+			set(_srcfiles ${_srcfiles} ${_srcfile})
+		endif(_srcfile STREQUAL "STATIC")
+	endforeach(_srcfile)
+
+	if(_static_mod)
+		set(STATIC_MODULE_SRC ${STATIC_MODULE_SRC} ${_srcfiles})
+		file(APPEND ${TARGET}_builtins.h "STATIC_MOD(${MODNAME})\n")
+	else(_static_mod)
+		add_library(${MODNAME} MODULE ${_srcfiles})
+		set(MODULE_TARGETS ${MODULE_TARGETS} ${MODNAME})
+
+		add_target_properties(${MODNAME} LINK_FLAGS ${COMMON_LDFLAGS})
+		add_target_properties(${MODNAME} COMPILE_FLAGS ${COMMON_CFLAGS})
+		set_target_properties(${MODNAME} PROPERTIES CMAKE_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX})
+
+		## Windows likes to link it this way back to app!
+		if(WIN32)
+			set_target_properties(${MODNAME} PROPERTIES LINK_FLAGS ${TARGET}.lib)
+		endif(WIN32)
+
+		if(APPLE)
+			set_target_properties(${MODNAME} PROPERTIES LINK_FLAGS "-flat_namespace -undefined suppress")
+		endif(APPLE)
+	endif(_static_mod)
+endmacro(add_module)
+
+macro(add_target_properties _target _name)
+	set(_properties)
+	foreach(_prop ${ARGN})
+		set(_properties "${_properties} ${_prop}")
+	endforeach(_prop)
+	get_target_property(_old_properties ${_target} ${_name})
+	##message(STATUS "adding property to ${_target} ${_name}:" ${_properties})
+	if(NOT _old_properties)
+		# in case it's NOTFOUND
+		set(_old_properties)
+	endif(NOT _old_properties)
+	set_target_properties(${_target} PROPERTIES ${_name} "${_old_properties} ${_properties}")
+endmacro(add_target_properties)
+