# If Lua is installed in a non-standard location, please set the LUA_DIR

# environment variable to point to prefix for the install. Eg:

# Unix: export LUA_DIR=/home/user/pkg

# Windows: set LUA_DIR=c:\lua51

project(lua-cjson C)

cmake_minimum_required(VERSION 2.6)

option(USE_INTERNAL_FPCONV "Use internal strtod() / g_fmt() code for performance")

option(MULTIPLE_THREADS "Support multi-threaded apps with internal fpconv - recommended" ON)

if(NOT CMAKE_BUILD_TYPE)

set(CMAKE_BUILD_TYPE Release CACHE STRING

"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."

FORCE)

endif()

find_package(Lua51 REQUIRED)

include_directories(${LUA_INCLUDE_DIR})

if(NOT USE_INTERNAL_FPCONV)

# Use libc number conversion routines (strtod(), sprintf())

set(FPCONV_SOURCES fpconv.c)

else()

# Use internal number conversion routines

add_definitions(-DUSE_INTERNAL_FPCONV)

set(FPCONV_SOURCES g_fmt.c dtoa.c)

include(TestBigEndian)

TEST_BIG_ENDIAN(IEEE_BIG_ENDIAN)

if(IEEE_BIG_ENDIAN)

add_definitions(-DIEEE_BIG_ENDIAN)

endif()

if(MULTIPLE_THREADS)

set(CMAKE_THREAD_PREFER_PTHREAD TRUE)

find_package(Threads REQUIRED)

if(NOT CMAKE_USE_PTHREADS_INIT)

message(FATAL_ERROR

"Pthreads not found - required by MULTIPLE_THREADS option")

endif()

add_definitions(-DMULTIPLE_THREADS)

endif()

endif()

# Handle platforms missing isinf() macro (Eg, some Solaris systems).

include(CheckSymbolExists)

CHECK_SYMBOL_EXISTS(isinf math.h HAVE_ISINF)

if(NOT HAVE_ISINF)

add_definitions(-DUSE_INTERNAL_ISINF)

endif()

set(_MODULE_LINK "${CMAKE_THREAD_LIBS_INIT}")

get_filename_component(_lua_lib_dir ${LUA_LIBRARY} PATH)

if(APPLE)

set(CMAKE_SHARED_MODULE_CREATE_C_FLAGS

"${CMAKE_SHARED_MODULE_CREATE_C_FLAGS} -undefined dynamic_lookup")

endif()

if(WIN32)

# Win32 modules need to be linked to the Lua library.

set(_MODULE_LINK ${LUA_LIBRARY} ${_MODULE_LINK})

set(_lua_module_dir "${_lua_lib_dir}")

# Windows sprintf()/strtod() handle NaN/inf differently. Not supported.

add_definitions(-DDISABLE_INVALID_NUMBERS)

else()

set(_lua_module_dir "${_lua_lib_dir}/lua/5.1")

endif()

if(MSVC)

add_definitions(-D_CRT_SECURE_NO_WARNINGS)

add_definitions(-Dinline=__inline)

add_definitions(-Dsnprintf=_snprintf)

add_definitions(-Dstrncasecmp=_strnicmp)

endif()

add_library(cjson MODULE lua_cjson.c strbuf.c ${FPCONV_SOURCES})

set_target_properties(cjson PROPERTIES PREFIX "")

target_link_libraries(cjson ${_MODULE_LINK})

install(TARGETS cjson DESTINATION "${_lua_module_dir}")

# vi:ai et sw=4 ts=4: