PROJECT(libucl C)

SET(LIBUCL_VERSION_MAJOR 0)
SET(LIBUCL_VERSION_MINOR 2)
SET(LIBUCL_VERSION_PATCH 9)

SET(LIBUCL_VERSION         "${LIBUCL_VERSION_MAJOR}.${LIBUCL_VERSION_MINOR}.${LIBUCL_VERSION_PATCH}")

INCLUDE(CheckCCompilerFlag)
INCLUDE(FindOpenSSL)
CMAKE_MINIMUM_REQUIRED(VERSION 2.6.0 FATAL_ERROR)

OPTION(ENABLE_URL_INCLUDE  "Enable urls in ucl includes (requires libcurl or libfetch) [default: OFF]" OFF)
OPTION(ENABLE_URL_SIGN  "Enable signatures check in ucl includes (requires openssl) [default: OFF]" OFF)
OPTION(BUILD_SHARED_LIBS "Build Shared Libraries [default: OFF]" OFF)

IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
	LIST(APPEND CMAKE_REQUIRED_LIBRARIES rt)
ENDIF(CMAKE_SYSTEM_NAME STREQUAL "Linux")

IF(ENABLE_URL_INCLUDE MATCHES "ON")
    FIND_LIBRARY(LIBFETCH_LIBRARY NAMES fetch PATHS	PATH_SUFFIXES lib64 lib
                      PATHS
                          ~/Library/Frameworks
                          /Library/Frameworks
                          /usr/local
                          /usr
                          /sw
                          /opt/local
                          /opt/csw
                          /opt
                     DOC "Path where the libfetch library can be found")
    IF(LIBFETCH_LIBRARY)
    	FIND_FILE(HAVE_FETCH_H NAMES fetch.h PATHS /usr/include
    											   /opt/include
    											   /usr/local/include
    				DOC "Path to libfetch header")
    ELSE(LIBFETCH_LIBRARY)
    	# Try to find libcurl
    	ProcessPackage(CURL libcurl)
    	IF(NOT CURL_FOUND)
    		MESSAGE(WARNING "Neither libcurl nor libfetch were found, no support of URL includes in configuration")
    	ENDIF(NOT CURL_FOUND)
    ENDIF(LIBFETCH_LIBRARY)
ENDIF(ENABLE_URL_INCLUDE MATCHES "ON")

SET(CMAKE_C_WARN_FLAGS "")
CHECK_C_COMPILER_FLAG(-Wall SUPPORT_WALL)
CHECK_C_COMPILER_FLAG(-W SUPPORT_W)
CHECK_C_COMPILER_FLAG(-Wno-unused-parameter SUPPORT_WPARAM)
CHECK_C_COMPILER_FLAG(-Wno-pointer-sign SUPPORT_WPOINTER_SIGN)
CHECK_C_COMPILER_FLAG(-Wstrict-prototypes SUPPORT_WSTRICT_PROTOTYPES)
IF(NOT "${CMAKE_C_COMPILER_ID}" MATCHES SunPro)
	CHECK_C_COMPILER_FLAG("-std=c99" SUPPORT_STD_FLAG)
ENDIF(NOT "${CMAKE_C_COMPILER_ID}" MATCHES SunPro)
IF(SUPPORT_W)
	SET(CMAKE_C_WARN_FLAGS "${CMAKE_C_WARN_FLAGS} -W")
ENDIF(SUPPORT_W)
IF(SUPPORT_WALL)
	SET(CMAKE_C_WARN_FLAGS "${CMAKE_C_WARN_FLAGS} -Wall")
ENDIF(SUPPORT_WALL)
IF(SUPPORT_WPARAM)
	SET(CMAKE_C_WARN_FLAGS "${CMAKE_C_WARN_FLAGS} -Wno-unused-parameter")
ENDIF(SUPPORT_WPARAM)
IF(SUPPORT_WPOINTER_SIGN)
	SET(CMAKE_C_WARN_FLAGS "${CMAKE_C_WARN_FLAGS} -Wno-pointer-sign")
ENDIF(SUPPORT_WPOINTER_SIGN)
IF(SUPPORT_WSTRICT_PROTOTYPES)
	SET(CMAKE_C_WARN_FLAGS "${CMAKE_C_WARN_FLAGS} -Wstrict-prototypes")
ENDIF(SUPPORT_WSTRICT_PROTOTYPES)
IF(SUPPORT_STD_FLAG)
	SET(CMAKE_C_WARN_FLAGS "${CMAKE_C_WARN_FLAGS} -std=c99")
ENDIF(SUPPORT_STD_FLAG)

IF(ENABLE_URL_SIGN MATCHES "ON")
	IF(OPENSSL_FOUND)
		SET(HAVE_OPENSSL 1)
		INCLUDE_DIRECTORIES("${OPENSSL_INCLUDE_DIR}")
	ENDIF(OPENSSL_FOUND)
ENDIF(ENABLE_URL_SIGN MATCHES "ON")

INCLUDE_DIRECTORIES("${CMAKE_CURRENT_SOURCE_DIR}/../src")
INCLUDE_DIRECTORIES("${CMAKE_CURRENT_SOURCE_DIR}/../include")
INCLUDE_DIRECTORIES("${CMAKE_CURRENT_SOURCE_DIR}/../uthash")

SET(UCLSRC            ../src/ucl_util.c
                      ../src/ucl_parser.c
                      ../src/ucl_emitter.c
                      ../src/ucl_hash.c
                      ../src/ucl_schema.c
                      ../src/xxhash.c)


SET (LIB_TYPE STATIC)
IF (BUILD_SHARED_LIBS)
  SET (LIB_TYPE SHARED)
ENDIF (BUILD_SHARED_LIBS)
ADD_LIBRARY(ucl ${LIB_TYPE} ${UCLSRC})
SET_TARGET_PROPERTIES(ucl PROPERTIES VERSION ${LIBUCL_VERSION} SOVERSION ${LIBUCL_VERSION_MAJOR})

IF(HAVE_FETCH_H)
    TARGET_LINK_LIBRARIES(ucl fetch)
ELSE(HAVE_FETCH_H)
    IF(CURL_FOUND)
        TARGET_LINK_LIBRARIES(ucl ${CURL_LIBRARIES})
    ENDIF(CURL_FOUND)
ENDIF(HAVE_FETCH_H)
IF(ENABLE_URL_SIGN MATCHES "ON")
	IF(OPENSSL_FOUND)
		TARGET_LINK_LIBRARIES(ucl ${OPENSSL_LIBRARIES})
	ENDIF(OPENSSL_FOUND)
ENDIF(ENABLE_URL_SIGN MATCHES "ON")