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# Copyright (C) 2007-2009 LuaDist.
# Created by Peter Kapec
# Redistribution and use of this file is allowed according to the terms of the MIT license.
# For details see the COPYRIGHT file distributed with LuaDist.
# Please note that the package source code is licensed under its own license.

PROJECT(lanes C)
CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
INCLUDE(dist.cmake)

FIND_PACKAGE(Lua51 REQUIRED)
FIND_PROGRAM(LUA NAMES lua5.1 lua51 lua)
FIND_PROGRAM(LUAC NAMES luac5.1 luac51 luac)
INCLUDE_DIRECTORIES(${LUA_INCLUDE_DIR})

#2DO - patch threading.c to suppot cygwin.
# The following values are just a guess.
# WARNING: test segfault under Cygwin
IF(CYGWIN)
  ADD_DEFINITIONS(-D_PRIO_MODE=SCHED_FIFO)
  ADD_DEFINITIONS(-D_PRIO_HI=15) # maximum that doesn't crash
  ADD_DEFINITIONS(-D_PRIO_0=0)
  ADD_DEFINITIONS(-D_PRIO_LO=-15) # ???
  ADD_DEFINITIONS(-Dpthread_yield=sched_yield)
ENDIF(CYGWIN)

#2DO - use provided bin2c
# Embed keeper.lua in text form in C (embedding bytecode is not LuaJIT2-compatible)
ADD_CUSTOM_COMMAND(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/keeper.lch
  DEPENDS src/keeper.lua
    COMMAND "${LUA}" "${CMAKE_CURRENT_SOURCE_DIR}/tools/bin2c.lua"
            "${CMAKE_CURRENT_SOURCE_DIR}/src/keeper.lua"
            "-o" "${CMAKE_CURRENT_BINARY_DIR}/keeper.lch")
SET_SOURCE_FILES_PROPERTIES(src/lanes.c PROPERTIES OBJECT_DEPENDS
  ${CMAKE_CURRENT_BINARY_DIR}/keeper.lch)
INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR})


# Build
INCLUDE_DIRECTORIES(src)
ADD_LIBRARY(lua51-lanes MODULE src/lanes.c src/threading.c src/tools.c src/keeper.c)

IF(UNIX AND NOT CYGWIN)
  SET(LIBS pthread)
ENDIF(UNIX AND NOT CYGWIN)

IF(MINGW)
#~ 	FIND_FILE(MSVCR80 NAMES msvcr80.dll msvcr90.dll)
#~ 	SET(LIBS gcc ${MSVCR80})
#~ 	IF(MSVC90)

#~ 		from InstallRequiredSystemLibraries.cmake

		IF(CMAKE_CL_64)
			SET(CMAKE_MSVC_ARCH amd64)
		ELSE(CMAKE_CL_64)
			SET(CMAKE_MSVC_ARCH x86)
		ENDIF(CMAKE_CL_64)

		GET_FILENAME_COMPONENT(devenv_dir "${CMAKE_MAKE_PROGRAM}" PATH)
		GET_FILENAME_COMPONENT(base_dir "${devenv_dir}/../.." ABSOLUTE)

		# Find the runtime library redistribution directory.
		FIND_PATH(MSVC90_REDIST_DIR NAMES ${CMAKE_MSVC_ARCH}/Microsoft.VC90.CRT/Microsoft.VC90.CRT.manifest
		PATHS
		"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\9.0;InstallDir]/../../VC/redist"
		"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VCExpress\\9.0;InstallDir]/../../VC/redist"
		"${base_dir}/VC/redist"
		)
		SET(MSVC90_CRT_DIR "${MSVC90_REDIST_DIR}/${CMAKE_MSVC_ARCH}/Microsoft.VC90.CRT")
		SET(LIBS gcc msvcr90 "${MSVC90_CRT_DIR}/msvcr90.dll")

#~ 	ENDIF()

ENDIF()




TARGET_LINK_LIBRARIES(lua51-lanes ${LUA_LIBRARY} ${LIBS})
SET_TARGET_PROPERTIES(lua51-lanes PROPERTIES PREFIX "")

# Install all files and documentation
INSTALL (TARGETS lua51-lanes DESTINATION ${INSTALL_CMOD})
INSTALL (FILES src/lanes.lua DESTINATION ${INSTALL_LMOD})

INSTALL (FILES ABOUT BUGS COPYRIGHT CHANGES README TODO DESTINATION ${INSTALL_DATA})
INSTALL (DIRECTORY docs/ DESTINATION ${INSTALL_DOC})
INSTALL (DIRECTORY tests/ DESTINATION ${INSTALL_TEST})