thodg/libgit2/CMakeLists.txt

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• Hash : 097b0761
  Author :
  Date : 2016-04-29T10:18:04
  

  cmake: include threading libraries in pkg-config Include any required threading libraries in our `libgit2.pc`.

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• CMakeLists.txt

• # CMake build script for the libgit2 project
  #
  # Building (out of source build):
  # > mkdir build && cd build
  # > cmake .. [-DSETTINGS=VALUE]
  # > cmake --build .
  #
  # Testing:
  # > ctest -V
  #
  # Install:
  # > cmake --build . --target install
  
  PROJECT(libgit2 C)
  CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
  CMAKE_POLICY(SET CMP0015 NEW)
  
  # Add find modules to the path
  SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/")
  
  INCLUDE(CheckLibraryExists)
  INCLUDE(CheckFunctionExists)
  INCLUDE(CheckStructHasMember)
  INCLUDE(AddCFlagIfSupported)
  INCLUDE(FindPkgConfig)
  
  # Build options
  #
  OPTION( SONAME				"Set the (SO)VERSION of the target"		ON  )
  OPTION( BUILD_SHARED_LIBS	"Build Shared Library (OFF for Static)"	ON  )
  OPTION( THREADSAFE			"Build libgit2 as threadsafe"			ON )
  OPTION( BUILD_CLAR			"Build Tests using the Clar suite"		ON  )
  OPTION( BUILD_EXAMPLES		"Build library usage example apps"		OFF )
  OPTION( TAGS				"Generate tags"							OFF )
  OPTION( PROFILE				"Generate profiling information"		OFF )
  OPTION( ENABLE_TRACE		"Enables tracing support"				OFF )
  OPTION( LIBGIT2_FILENAME	"Name of the produced binary"			OFF )
  
  OPTION( USE_ICONV			"Link with and use iconv library" 		OFF )
  OPTION( USE_SSH				"Link with libssh to enable SSH support" ON )
  OPTION( USE_GSSAPI			"Link with libgssapi for SPNEGO auth"   OFF )
  OPTION( VALGRIND			"Configure build for valgrind"			OFF )
  OPTION( CURL			"User curl for HTTP if available" ON)
  OPTION( DEBUG_POOL			"Enable debug pool allocator"			OFF )
  
  IF(DEBUG_POOL)
  	ADD_DEFINITIONS(-DGIT_DEBUG_POOL)
  ENDIF()
  
  IF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
  	SET( USE_ICONV ON )
  	FIND_PACKAGE(Security)
  	FIND_PACKAGE(CoreFoundation REQUIRED)
  ENDIF()
  
  IF(MSVC)
  	# This option is only available when building with MSVC. By default, libgit2
  	# is build using the cdecl calling convention, which is useful if you're
  	# writing C. However, the CLR and Win32 API both expect stdcall.
  	#
  	# If you are writing a CLR program and want to link to libgit2, you'll want
  	# to turn this on by invoking CMake with the "-DSTDCALL=ON" argument.
  	OPTION( STDCALL			"Build libgit2 with the __stdcall convention"	OFF  )
  
  	# This option must match the settings used in your program, in particular if you
  	# are linking statically
  	OPTION( STATIC_CRT		"Link the static CRT libraries"	ON  )
  
  	# If you want to embed a copy of libssh2 into libgit2, pass a
  	# path to libssh2
  	OPTION( EMBED_SSH_PATH		"Path to libssh2 to embed (Windows)" OFF )
  
  	ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS)
  	ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE)
  	ADD_DEFINITIONS(-D_CRT_NONSTDC_NO_DEPRECATE)
  ENDIF()
  
  
  IF(WIN32)
  	# By default, libgit2 is built with WinHTTP.  To use the built-in
  	# HTTP transport, invoke CMake with the "-DWINHTTP=OFF" argument.
  	OPTION(	WINHTTP			"Use Win32 WinHTTP routines"	ON	)
  ENDIF()
  
  IF(MSVC)
  	# Enable MSVC CRTDBG memory leak reporting when in debug mode.
  	OPTION(MSVC_CRTDBG "Enable CRTDBG memory leak reporting" OFF)
  ENDIF()
  
  IF (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
  	OPTION( USE_OPENSSL                     "Link with and use openssl library"             ON )
  ENDIF()
  
  CHECK_STRUCT_HAS_MEMBER ("struct stat" st_mtim "sys/types.h;sys/stat.h"
  	HAVE_STRUCT_STAT_ST_MTIM LANGUAGE C)
  CHECK_STRUCT_HAS_MEMBER ("struct stat" st_mtimespec "sys/types.h;sys/stat.h"
  	HAVE_STRUCT_STAT_ST_MTIMESPEC LANGUAGE C)
  CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtime_nsec sys/stat.h
  	HAVE_STRUCT_STAT_MTIME_NSEC LANGUAGE C)
  
  IF (HAVE_STRUCT_STAT_ST_MTIM)
  	CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec sys/stat.h
  		HAVE_STRUCT_STAT_NSEC LANGUAGE C)
  ELSEIF (HAVE_STRUCT_STAT_ST_MTIMESPEC)
  	CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec sys/stat.h
  		HAVE_STRUCT_STAT_NSEC LANGUAGE C)
  ELSE ()
  	SET( HAVE_STRUCT_STAT_NSEC ON )
  ENDIF()
  
  IF (HAVE_STRUCT_STAT_NSEC OR WIN32)
  	OPTION( USE_NSEC		"Care about sub-second file mtimes and ctimes"	ON  )
  ENDIF()
  
  # This variable will contain the libraries we need to put into
  # libgit2.pc's Requires.private. That is, what we're linking to or
  # what someone who's statically linking us needs to link to.
  SET(LIBGIT2_PC_REQUIRES "")
  # This will be set later if we use the system's http-parser library or
  # use iconv (OSX) and will be written to the Libs.private field in the
  # pc file.
  SET(LIBGIT2_PC_LIBS "")
  
  # Installation paths
  #
  SET(BIN_INSTALL_DIR bin CACHE PATH "Where to install binaries to.")
  SET(LIB_INSTALL_DIR lib CACHE PATH "Where to install libraries to.")
  SET(INCLUDE_INSTALL_DIR include CACHE PATH "Where to install headers to.")
  
  # Set a couple variables to be substituted inside the .pc file.
  # We can't just use LIB_INSTALL_DIR in the .pc file, as passing them as absolue
  # or relative paths is both valid and supported by cmake.
  SET (PKGCONFIG_PREFIX ${CMAKE_INSTALL_PREFIX})
  
  IF(IS_ABSOLUTE ${LIB_INSTALL_DIR})
    SET (PKGCONFIG_LIBDIR ${LIB_INSTALL_DIR})
  ELSE(IS_ABSOLUTE ${LIB_INSTALL_DIR})
    SET (PKGCONFIG_LIBDIR "\${prefix}/${LIB_INSTALL_DIR}")
  ENDIF (IS_ABSOLUTE ${LIB_INSTALL_DIR})
  
  IF(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
    SET (PKGCONFIG_INCLUDEDIR ${INCLUDE_INSTALL_DIR})
  ELSE(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
    SET (PKGCONFIG_INCLUDEDIR "\${prefix}/${INCLUDE_INSTALL_DIR}")
  ENDIF(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
  
  FUNCTION(TARGET_OS_LIBRARIES target)
  	IF(WIN32)
  		TARGET_LINK_LIBRARIES(${target} ws2_32)
  	ELSEIF(CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
  		TARGET_LINK_LIBRARIES(${target} socket nsl)
  		LIST(APPEND LIBGIT2_PC_LIBS "-lsocket" "-lnsl")
  		SET(LIBGIT2_PC_LIBS ${LIBGIT2_PC_LIBS} PARENT_SCOPE)
  	ENDIF()
  	CHECK_LIBRARY_EXISTS(rt clock_gettime "time.h" NEED_LIBRT)
  	IF(NEED_LIBRT)
  		TARGET_LINK_LIBRARIES(${target} rt)
  		LIST(APPEND LIBGIT2_PC_LIBS "-lrt")
  		SET(LIBGIT2_PC_LIBS ${LIBGIT2_PC_LIBS} PARENT_SCOPE)
  	ENDIF()
  
  	IF(THREADSAFE)
  		TARGET_LINK_LIBRARIES(${target} ${CMAKE_THREAD_LIBS_INIT})
  		LIST(APPEND LIBGIT2_PC_LIBS ${CMAKE_THREAD_LIBS_INIT})
  		SET(LIBGIT2_PC_LIBS ${LIBGIT2_PC_LIBS} PARENT_SCOPE)
  	ENDIF()
  ENDFUNCTION()
  
  # This function splits the sources files up into their appropriate
  # subdirectories.  This is especially useful for IDEs like Xcode and
  # Visual Studio, so that you can navigate into the libgit2_clar project,
  # and see the folders within the tests folder (instead of just seeing all
  # source and tests in a single folder.)
  FUNCTION(IDE_SPLIT_SOURCES target)
  	IF(MSVC_IDE OR CMAKE_GENERATOR STREQUAL Xcode)
  		GET_TARGET_PROPERTY(sources ${target} SOURCES)
  		FOREACH(source ${sources})
  			IF(source MATCHES ".*/")
  				STRING(REPLACE ${CMAKE_CURRENT_SOURCE_DIR}/ "" rel ${source})
  				IF(rel)
  					STRING(REGEX REPLACE "/([^/]*)$" "" rel ${rel})
  					IF(rel)
  						STRING(REPLACE "/" "\\\\" rel ${rel})
  						SOURCE_GROUP(${rel} FILES ${source})
  					ENDIF()
  				ENDIF()
  			ENDIF()
  		ENDFOREACH()
  	ENDIF()
  ENDFUNCTION()
  
  FILE(STRINGS "include/git2/version.h" GIT2_HEADER REGEX "^#define LIBGIT2_VERSION \"[^\"]*\"$")
  
  STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"([0-9]+).*$" "\\1" LIBGIT2_VERSION_MAJOR "${GIT2_HEADER}")
  STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_MINOR  "${GIT2_HEADER}")
  STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_REV "${GIT2_HEADER}")
  SET(LIBGIT2_VERSION_STRING "${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}.${LIBGIT2_VERSION_REV}")
  
  FILE(STRINGS "include/git2/version.h" GIT2_HEADER_SOVERSION REGEX "^#define LIBGIT2_SOVERSION [0-9]+$")
  STRING(REGEX REPLACE "^.*LIBGIT2_SOVERSION ([0-9]+)$" "\\1" LIBGIT2_SOVERSION "${GIT2_HEADER_SOVERSION}")
  
  # Find required dependencies
  INCLUDE_DIRECTORIES(src include)
  
  IF (SECURITY_FOUND)
    # OS X 10.7 and older do not have some functions we use, fall back to OpenSSL there
    CHECK_LIBRARY_EXISTS("${SECURITY_DIRS}" SSLCreateContext "Security/SecureTransport.h" HAVE_NEWER_SECURITY)
    IF (HAVE_NEWER_SECURITY)
      MESSAGE("-- Found Security ${SECURITY_DIRS}")
      LIST(APPEND LIBGIT2_PC_LIBS "-framework Security")
    ELSE()
      MESSAGE("-- Security framework is too old, falling back to OpenSSL")
      SET(SECURITY_FOUND "NO")
      SET(SECURITY_DIRS "")
      SET(SECURITY_DIR "")
      SET(USE_OPENSSL "ON")
    ENDIF()
  ENDIF()
  
  IF (COREFOUNDATION_FOUND)
    MESSAGE("-- Found CoreFoundation ${COREFOUNDATION_DIRS}")
    LIST(APPEND LIBGIT2_PC_LIBS "-framework CoreFoundation")
  ENDIF()
  
  
  IF (WIN32 AND EMBED_SSH_PATH)
  	FILE(GLOB SRC_SSH "${EMBED_SSH_PATH}/src/*.c")
  	INCLUDE_DIRECTORIES("${EMBED_SSH_PATH}/include")
  	FILE(WRITE "${EMBED_SSH_PATH}/src/libssh2_config.h" "#define HAVE_WINCNG\n#define LIBSSH2_WINCNG\n#include \"../win32/libssh2_config.h\"")
  	ADD_DEFINITIONS(-DGIT_SSH)
  ENDIF()
  
  IF (WIN32 AND WINHTTP)
  	ADD_DEFINITIONS(-DGIT_WINHTTP)
  	INCLUDE_DIRECTORIES(deps/http-parser)
  	FILE(GLOB SRC_HTTP deps/http-parser/*.c deps/http-parser/*.h)
  
  	# Since MinGW does not come with headers or an import library for winhttp,
  	# we have to include a private header and generate our own import library
  	IF (MINGW)
  		FIND_PROGRAM(DLLTOOL dlltool CMAKE_FIND_ROOT_PATH_BOTH)
  		IF (NOT DLLTOOL)
  			MESSAGE(FATAL_ERROR "Could not find dlltool command")
  		ENDIF ()
  
  		SET(LIBWINHTTP_PATH "${CMAKE_CURRENT_BINARY_DIR}/deps/winhttp")
  		FILE(MAKE_DIRECTORY ${LIBWINHTTP_PATH})
  
  		IF (CMAKE_SIZEOF_VOID_P EQUAL 8)
  			set(WINHTTP_DEF "${CMAKE_CURRENT_SOURCE_DIR}/deps/winhttp/winhttp64.def")
  		ELSE()
  			set(WINHTTP_DEF "${CMAKE_CURRENT_SOURCE_DIR}/deps/winhttp/winhttp.def")
  		ENDIF()
  
  		ADD_CUSTOM_COMMAND(
  			OUTPUT ${LIBWINHTTP_PATH}/libwinhttp.a
  			COMMAND ${DLLTOOL} -d ${WINHTTP_DEF} -k -D winhttp.dll -l libwinhttp.a
  			DEPENDS ${WINHTTP_DEF}
  			WORKING_DIRECTORY ${LIBWINHTTP_PATH}
  		)
  
  		SET_SOURCE_FILES_PROPERTIES(
  			${CMAKE_CURRENT_SOURCE_DIR}/src/transports/winhttp.c
  			PROPERTIES OBJECT_DEPENDS ${LIBWINHTTP_PATH}/libwinhttp.a
  		)
  
  		INCLUDE_DIRECTORIES(deps/winhttp)
  		LINK_DIRECTORIES(${LIBWINHTTP_PATH})
  	ENDIF ()
  
  	LINK_LIBRARIES(winhttp rpcrt4 crypt32 ole32)
  	LIST(APPEND LIBGIT2_PC_LIBS "-lwinhttp" "-lrpcrt4" "-lcrypt32" "-lole32")
  ELSE ()
  	IF (CURL)
  		PKG_CHECK_MODULES(CURL libcurl)
  	ENDIF ()
  
  	IF (NOT AMIGA AND USE_OPENSSL)
  		FIND_PACKAGE(OpenSSL)
  	ENDIF ()
  
  	IF (CURL_FOUND)
  		ADD_DEFINITIONS(-DGIT_CURL)
  		INCLUDE_DIRECTORIES(${CURL_INCLUDE_DIRS})
  		LINK_LIBRARIES(${CURL_LIBRARIES})
  		LIST(APPEND LIBGIT2_PC_LIBS ${CURL_LDFLAGS})
  	ENDIF()
  
  	FIND_PACKAGE(HTTP_Parser)
  	IF (HTTP_PARSER_FOUND AND HTTP_PARSER_VERSION_MAJOR EQUAL 2)
  		INCLUDE_DIRECTORIES(${HTTP_PARSER_INCLUDE_DIRS})
  		LINK_LIBRARIES(${HTTP_PARSER_LIBRARIES})
  		LIST(APPEND LIBGIT2_PC_LIBS "-lhttp_parser")
  	ELSE()
  		MESSAGE(STATUS "http-parser was not found or is too old; using bundled 3rd-party sources.")
  		INCLUDE_DIRECTORIES(deps/http-parser)
  		FILE(GLOB SRC_HTTP deps/http-parser/*.c deps/http-parser/*.h)
  	ENDIF()
  ENDIF()
  
  # Specify sha1 implementation
  IF (WIN32 AND NOT MINGW AND NOT SHA1_TYPE STREQUAL "builtin")
  	ADD_DEFINITIONS(-DWIN32_SHA1)
  	FILE(GLOB SRC_SHA1 src/hash/hash_win32.c)
  ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
  	ADD_DEFINITIONS(-DGIT_COMMON_CRYPTO)
  ELSEIF (OPENSSL_FOUND AND NOT SHA1_TYPE STREQUAL "builtin")
  	ADD_DEFINITIONS(-DOPENSSL_SHA1)
  	IF (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
  		LIST(APPEND LIBGIT2_PC_LIBS "-lssl")
  	ELSE()
  		SET(LIBGIT2_PC_REQUIRES "${LIBGIT2_PC_REQUIRES} openssl")
  	ENDIF ()
  ELSE()
  	FILE(GLOB SRC_SHA1 src/hash/hash_generic.c)
  ENDIF()
  
  # Enable tracing
  IF (ENABLE_TRACE STREQUAL "ON")
  	ADD_DEFINITIONS(-DGIT_TRACE)
  ENDIF()
  
  # Include POSIX regex when it is required
  IF(WIN32 OR AMIGA OR CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
  	INCLUDE_DIRECTORIES(deps/regex)
  	SET(SRC_REGEX deps/regex/regex.c)
  ENDIF()
  
  # Optional external dependency: zlib
  FIND_PACKAGE(ZLIB)
  IF (ZLIB_FOUND)
  	INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIRS})
  	LINK_LIBRARIES(${ZLIB_LIBRARIES})
  	IF(APPLE OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
  		LIST(APPEND LIBGIT2_PC_LIBS "-lz")
  	ELSE()
  		SET(LIBGIT2_PC_REQUIRES "${LIBGIT2_PC_REQUIRES} zlib")
  	ENDIF()
  ELSE()
  	MESSAGE(STATUS "zlib was not found; using bundled 3rd-party sources." )
  	INCLUDE_DIRECTORIES(deps/zlib)
  	ADD_DEFINITIONS(-DNO_VIZ -DSTDC -DNO_GZIP)
  	FILE(GLOB SRC_ZLIB deps/zlib/*.c deps/zlib/*.h)
  ENDIF()
  
  # Optional external dependency: libssh2
  IF (USE_SSH)
  	PKG_CHECK_MODULES(LIBSSH2 libssh2)
  ENDIF()
  IF (LIBSSH2_FOUND)
  	ADD_DEFINITIONS(-DGIT_SSH)
  	INCLUDE_DIRECTORIES(${LIBSSH2_INCLUDE_DIRS})
  	LINK_DIRECTORIES(${LIBSSH2_LIBRARY_DIRS})
  	LIST(APPEND LIBGIT2_PC_LIBS ${LIBSSH2_LDFLAGS})
  	#SET(LIBGIT2_PC_LIBS "${LIBGIT2_PC_LIBS} ${LIBSSH2_LDFLAGS}")
  	SET(SSH_LIBRARIES ${LIBSSH2_LIBRARIES})
  
  	CHECK_LIBRARY_EXISTS("${LIBSSH2_LIBRARIES}" libssh2_userauth_publickey_frommemory "${LIBSSH2_LIBRARY_DIRS}" HAVE_LIBSSH2_MEMORY_CREDENTIALS)
  	IF (HAVE_LIBSSH2_MEMORY_CREDENTIALS)
  		ADD_DEFINITIONS(-DGIT_SSH_MEMORY_CREDENTIALS)
  	ENDIF()
  ELSE()
  	MESSAGE(STATUS "LIBSSH2 not found. Set CMAKE_PREFIX_PATH if it is installed outside of the default search path.")
  ENDIF()
  
  # Optional external dependency: libgssapi
  IF (USE_GSSAPI)
  	FIND_PACKAGE(GSSAPI)
  ENDIF()
  IF (GSSAPI_FOUND)
  	ADD_DEFINITIONS(-DGIT_GSSAPI)
  ENDIF()
  
  # Optional external dependency: iconv
  IF (USE_ICONV)
  	FIND_PACKAGE(Iconv)
  ENDIF()
  IF (ICONV_FOUND)
  	ADD_DEFINITIONS(-DGIT_USE_ICONV)
  	INCLUDE_DIRECTORIES(${ICONV_INCLUDE_DIR})
  	LIST(APPEND LIBGIT2_PC_LIBS ${ICONV_LIBRARIES})
  ENDIF()
  
  # Platform specific compilation flags
  IF (MSVC)
  
  	STRING(REPLACE "/Zm1000" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
  
  	# /GF - String pooling
  	# /MP - Parallel build
  	SET(CMAKE_C_FLAGS "/GF /MP /nologo ${CMAKE_C_FLAGS}")
  
  	IF (STDCALL)
  		# /Gz - stdcall calling convention
  		SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Gz")
  	ENDIF ()
  
  	IF (STATIC_CRT)
  		SET(CRT_FLAG_DEBUG "/MTd")
  		SET(CRT_FLAG_RELEASE "/MT")
  	ELSE()
  		SET(CRT_FLAG_DEBUG "/MDd")
  		SET(CRT_FLAG_RELEASE "/MD")
  	ENDIF()
  
  	IF (MSVC_CRTDBG)
  		SET(CRT_FLAG_DEBUG "${CRT_FLAG_DEBUG} /DGIT_MSVC_CRTDBG")
  		SET(CMAKE_C_STANDARD_LIBRARIES "${CMAKE_C_STANDARD_LIBRARIES}" "Dbghelp.lib")
  	ENDIF()
  
  	# /Zi - Create debugging information
  	# /Od - Disable optimization
  	# /D_DEBUG - #define _DEBUG
  	# /MTd - Statically link the multithreaded debug version of the CRT
  	# /MDd - Dynamically link the multithreaded debug version of the CRT
  	# /RTC1 - Run time checks
  	SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Zi /Od /D_DEBUG /RTC1 ${CRT_FLAG_DEBUG}")
  
  	# /DNDEBUG - Disables asserts
  	# /MT - Statically link the multithreaded release version of the CRT
  	# /MD - Dynamically link the multithreaded release version of the CRT
  	# /O2 - Optimize for speed
  	# /Oy - Enable frame pointer omission (FPO) (otherwise CMake will automatically turn it off)
  	# /GL - Link time code generation (whole program optimization)
  	# /Gy - Function-level linking
  	SET(CMAKE_C_FLAGS_RELEASE "/DNDEBUG /O2 /Oy /GL /Gy ${CRT_FLAG_RELEASE}")
  
  	# /Oy- - Disable frame pointer omission (FPO)
  	SET(CMAKE_C_FLAGS_RELWITHDEBINFO "/DNDEBUG /Zi /O2 /Oy- /GL /Gy ${CRT_FLAG_RELEASE}")
  
  	# /O1 - Optimize for size
  	SET(CMAKE_C_FLAGS_MINSIZEREL "/DNDEBUG /O1 /Oy /GL /Gy ${CRT_FLAG_RELEASE}")
  
  	# /DYNAMICBASE - Address space load randomization (ASLR)
  	# /NXCOMPAT - Data execution prevention (DEP)
  	# /LARGEADDRESSAWARE - >2GB user address space on x86
  	# /VERSION - Embed version information in PE header
  	SET(CMAKE_EXE_LINKER_FLAGS "/DYNAMICBASE /NXCOMPAT /LARGEADDRESSAWARE /VERSION:${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}")
  
  	# /DEBUG - Create a PDB
  	# /LTCG - Link time code generation (whole program optimization)
  	# /OPT:REF /OPT:ICF - Fold out duplicate code at link step
  	# /INCREMENTAL:NO - Required to use /LTCG
  	# /DEBUGTYPE:cv,fixup - Additional data embedded in the PDB (requires /INCREMENTAL:NO, so not on for Debug)
  	SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "/DEBUG")
  	SET(CMAKE_EXE_LINKER_FLAGS_RELEASE "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
  	SET(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "/DEBUG /RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO /DEBUGTYPE:cv,fixup")
  	SET(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
  
  	# Same linker settings for DLL as EXE
  	SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
  	SET(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
  	SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
  	SET(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}")
  	SET(CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL}")
  
  	SET(WIN_RC "src/win32/git2.rc")
  
     # Precompiled headers
  
  ELSE ()
  	SET(CMAKE_C_FLAGS "-D_GNU_SOURCE -Wall -Wextra ${CMAKE_C_FLAGS}")
  
  	IF (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
  		SET(CMAKE_C_FLAGS "-std=c99 -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS ${CMAKE_C_FLAGS}")
  	ENDIF()
  
  	IF (WIN32 AND NOT CYGWIN)
  		SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")
  	ENDIF ()
  
  	IF (MINGW) # MinGW always does PIC and complains if we tell it to
  		STRING(REGEX REPLACE "-fPIC" "" CMAKE_SHARED_LIBRARY_C_FLAGS "${CMAKE_SHARED_LIBRARY_C_FLAGS}")
  		# MinGW >= 3.14 uses the C99-style stdio functions
  		# automatically, but forks like mingw-w64 still want
  		# us to define this in order to use them
  		ADD_DEFINITIONS(-D__USE_MINGW_ANSI_STDIO=1)
  
  	ELSEIF (BUILD_SHARED_LIBS)
  		ADD_C_FLAG_IF_SUPPORTED(-fvisibility=hidden)
  
  		SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
  	ENDIF ()
  
  	ADD_C_FLAG_IF_SUPPORTED(-Wdocumentation)
  	ADD_C_FLAG_IF_SUPPORTED(-Wno-missing-field-initializers)
  	ADD_C_FLAG_IF_SUPPORTED(-Wstrict-aliasing=2)
  	ADD_C_FLAG_IF_SUPPORTED(-Wstrict-prototypes)
  	ADD_C_FLAG_IF_SUPPORTED(-Wdeclaration-after-statement)
  	ADD_C_FLAG_IF_SUPPORTED(-Wno-unused-const-variable)
  	ADD_C_FLAG_IF_SUPPORTED(-Wno-unused-function)
  
  	IF (APPLE) # Apple deprecated OpenSSL
  		ADD_C_FLAG_IF_SUPPORTED(-Wno-deprecated-declarations)
  	ENDIF()
  
  	IF (PROFILE)
  		SET(CMAKE_C_FLAGS "-pg ${CMAKE_C_FLAGS}")
  		SET(CMAKE_EXE_LINKER_FLAGS "-pg ${CMAKE_EXE_LINKER_FLAGS}")
  	ENDIF ()
  ENDIF()
  
  CHECK_FUNCTION_EXISTS(futimens HAVE_FUTIMENS)
  IF (HAVE_FUTIMENS)
  	ADD_DEFINITIONS(-DHAVE_FUTIMENS)
  ENDIF ()
  
  CHECK_FUNCTION_EXISTS(qsort_r HAVE_QSORT_R)
  IF (HAVE_QSORT_R)
  	ADD_DEFINITIONS(-DHAVE_QSORT_R)
  ENDIF ()
  
  CHECK_FUNCTION_EXISTS(qsort_s HAVE_QSORT_S)
  IF (HAVE_QSORT_S)
  	ADD_DEFINITIONS(-DHAVE_QSORT_S)
  ENDIF ()
  
  IF( NOT CMAKE_CONFIGURATION_TYPES )
  	# Build Debug by default
  	IF (NOT CMAKE_BUILD_TYPE)
  		SET(CMAKE_BUILD_TYPE "Debug" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel." FORCE)
  	ENDIF ()
  ELSE()
  	# Using a multi-configuration generator eg MSVC or Xcode
  	# that uses CMAKE_CONFIGURATION_TYPES and not CMAKE_BUILD_TYPE
  ENDIF()
  
  IF (SECURITY_FOUND)
    ADD_DEFINITIONS(-DGIT_SECURE_TRANSPORT)
    INCLUDE_DIRECTORIES(${SECURITY_INCLUDE_DIR})
  ENDIF ()
  
  IF (OPENSSL_FOUND)
    ADD_DEFINITIONS(-DGIT_OPENSSL)
    INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
    SET(SSL_LIBRARIES ${OPENSSL_LIBRARIES})
  ENDIF()
  
  
  
  IF (THREADSAFE)
  	IF (NOT WIN32)
  		FIND_PACKAGE(Threads REQUIRED)
  	ENDIF()
  
  	ADD_DEFINITIONS(-DGIT_THREADS)
  ENDIF()
  
  IF (USE_NSEC)
  	ADD_DEFINITIONS(-DGIT_USE_NSEC)
  ENDIF()
  
  IF (HAVE_STRUCT_STAT_ST_MTIM)
  	ADD_DEFINITIONS(-DGIT_USE_STAT_MTIM)
  ELSEIF (HAVE_STRUCT_STAT_ST_MTIMESPEC)
  	ADD_DEFINITIONS(-DGIT_USE_STAT_MTIMESPEC)
  ELSEIF (HAVE_STRUCT_STAT_ST_MTIME_NSEC)
  	ADD_DEFINITIONS(-DGIT_USE_STAT_MTIME_NSEC)
  ENDIF()
  
  ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64)
  
  # Collect sourcefiles
  FILE(GLOB SRC_H include/git2.h include/git2/*.h include/git2/sys/*.h)
  
  # On Windows use specific platform sources
  IF (WIN32 AND NOT CYGWIN)
  	ADD_DEFINITIONS(-DWIN32 -D_WIN32_WINNT=0x0501)
  	FILE(GLOB SRC_OS src/win32/*.c src/win32/*.h)
  ELSEIF (AMIGA)
  	ADD_DEFINITIONS(-DNO_ADDRINFO -DNO_READDIR_R -DNO_MMAP)
  ELSE()
  	IF (VALGRIND)
  		ADD_DEFINITIONS(-DNO_MMAP)
  	ENDIF()
  	FILE(GLOB SRC_OS src/unix/*.c src/unix/*.h)
  ENDIF()
  FILE(GLOB SRC_GIT2 src/*.c src/*.h src/transports/*.c src/transports/*.h src/xdiff/*.c src/xdiff/*.h)
  
  # Determine architecture of the machine
  IF (CMAKE_SIZEOF_VOID_P EQUAL 8)
  	ADD_DEFINITIONS(-DGIT_ARCH_64)
  ELSEIF (CMAKE_SIZEOF_VOID_P EQUAL 4)
  	ADD_DEFINITIONS(-DGIT_ARCH_32)
  ELSEIF (CMAKE_SIZEOF_VOID_P)
  	MESSAGE(FATAL_ERROR "Unsupported architecture (pointer size is ${CMAKE_SIZEOF_VOID_P} bytes)")
  ELSE()
  	MESSAGE(FATAL_ERROR "Unsupported architecture (CMAKE_SIZEOF_VOID_P is unset)")
  ENDIF()
  
  # Compile and link libgit2
  ADD_LIBRARY(git2 ${SRC_H} ${SRC_GIT2} ${SRC_OS} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX} ${SRC_SSH} ${SRC_SHA1} ${WIN_RC})
  TARGET_LINK_LIBRARIES(git2 ${SECURITY_DIRS})
  TARGET_LINK_LIBRARIES(git2 ${COREFOUNDATION_DIRS})
  TARGET_LINK_LIBRARIES(git2 ${SSL_LIBRARIES})
  TARGET_LINK_LIBRARIES(git2 ${SSH_LIBRARIES})
  TARGET_LINK_LIBRARIES(git2 ${GSSAPI_LIBRARIES})
  TARGET_LINK_LIBRARIES(git2 ${ICONV_LIBRARIES})
  TARGET_OS_LIBRARIES(git2)
  
  # Workaround for Cmake bug #0011240 (see http://public.kitware.com/Bug/view.php?id=11240)
  # Win64+MSVC+static libs = linker error
  IF(MSVC AND GIT_ARCH_64 AND NOT BUILD_SHARED_LIBS)
    SET_TARGET_PROPERTIES(git2 PROPERTIES STATIC_LIBRARY_FLAGS "/MACHINE:x64")
  ENDIF()
  
  IDE_SPLIT_SOURCES(git2)
  
  IF (SONAME)
  	SET_TARGET_PROPERTIES(git2 PROPERTIES VERSION ${LIBGIT2_VERSION_STRING})
  	SET_TARGET_PROPERTIES(git2 PROPERTIES SOVERSION ${LIBGIT2_SOVERSION})
  	IF (LIBGIT2_FILENAME)
  		ADD_DEFINITIONS(-DLIBGIT2_FILENAME=\"${LIBGIT2_FILENAME}\")
  		SET_TARGET_PROPERTIES(git2 PROPERTIES OUTPUT_NAME ${LIBGIT2_FILENAME})
  	ELSEIF (DEFINED LIBGIT2_PREFIX)
  		SET_TARGET_PROPERTIES(git2 PROPERTIES PREFIX "${LIBGIT2_PREFIX}")
  	ENDIF()
  ENDIF()
  STRING(REPLACE ";" " " LIBGIT2_PC_LIBS "${LIBGIT2_PC_LIBS}")
  CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/libgit2.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libgit2.pc @ONLY)
  
  IF (MSVC_IDE)
     # Precompiled headers
     SET_TARGET_PROPERTIES(git2 PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h")
     SET_SOURCE_FILES_PROPERTIES(src/win32/precompiled.c COMPILE_FLAGS "/Ycprecompiled.h")
  ENDIF ()
  
  # Install
  INSTALL(TARGETS git2
  	RUNTIME DESTINATION ${BIN_INSTALL_DIR}
  	LIBRARY DESTINATION ${LIB_INSTALL_DIR}
  	ARCHIVE DESTINATION ${LIB_INSTALL_DIR}
  )
  INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libgit2.pc DESTINATION ${LIB_INSTALL_DIR}/pkgconfig )
  INSTALL(DIRECTORY include/git2 DESTINATION ${INCLUDE_INSTALL_DIR} )
  INSTALL(FILES include/git2.h DESTINATION ${INCLUDE_INSTALL_DIR} )
  
  # Tests
  IF (BUILD_CLAR)
  	FIND_PACKAGE(PythonInterp)
  
  	IF(NOT PYTHONINTERP_FOUND)
  	  MESSAGE(FATAL_ERROR "Could not find a python interpeter, which is needed to build the tests. "
  	    "Make sure python is available, or pass -DBUILD_CLAR=OFF to skip building the tests")
  	ENDIF()
  
  	SET(CLAR_FIXTURES "${CMAKE_CURRENT_SOURCE_DIR}/tests/resources/")
  	SET(CLAR_PATH "${CMAKE_CURRENT_SOURCE_DIR}/tests")
  	SET(CLAR_RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/tests/resources" CACHE PATH "Path to test resources.")
  	ADD_DEFINITIONS(-DCLAR_FIXTURE_PATH=\"${CLAR_FIXTURES}\")
  	ADD_DEFINITIONS(-DCLAR_RESOURCES=\"${TEST_RESOURCES}\")
  	ADD_DEFINITIONS(-DCLAR_TMPDIR=\"libgit2_tests\")
  
  	INCLUDE_DIRECTORIES(${CLAR_PATH})
  	FILE(GLOB_RECURSE SRC_TEST ${CLAR_PATH}/*/*.c ${CLAR_PATH}/*/*.h)
  	SET(SRC_CLAR "${CLAR_PATH}/main.c" "${CLAR_PATH}/clar_libgit2.c" "${CLAR_PATH}/clar_libgit2_trace.c" "${CLAR_PATH}/clar_libgit2_timer.c" "${CLAR_PATH}/clar.c")
  
  	ADD_CUSTOM_COMMAND(
  		OUTPUT ${CLAR_PATH}/clar.suite
  		COMMAND ${PYTHON_EXECUTABLE} generate.py -f -xonline -xstress .
  		DEPENDS ${SRC_TEST}
  		WORKING_DIRECTORY ${CLAR_PATH}
  	)
  
  	SET_SOURCE_FILES_PROPERTIES(
  		${CLAR_PATH}/clar.c
  		PROPERTIES OBJECT_DEPENDS ${CLAR_PATH}/clar.suite)
  
  	ADD_EXECUTABLE(libgit2_clar ${SRC_H} ${SRC_GIT2} ${SRC_OS} ${SRC_CLAR} ${SRC_TEST} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX} ${SRC_SSH} ${SRC_SHA1})
  
  	TARGET_LINK_LIBRARIES(libgit2_clar ${COREFOUNDATION_DIRS})
  	TARGET_LINK_LIBRARIES(libgit2_clar ${SECURITY_DIRS})
  	TARGET_LINK_LIBRARIES(libgit2_clar ${SSL_LIBRARIES})
  	TARGET_LINK_LIBRARIES(libgit2_clar ${SSH_LIBRARIES})
  	TARGET_LINK_LIBRARIES(libgit2_clar ${GSSAPI_LIBRARIES})
  	TARGET_LINK_LIBRARIES(libgit2_clar ${ICONV_LIBRARIES})
  	TARGET_OS_LIBRARIES(libgit2_clar)
  	IDE_SPLIT_SOURCES(libgit2_clar)
  
  	IF (MSVC_IDE)
  		# Precompiled headers
  		SET_TARGET_PROPERTIES(libgit2_clar PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h")
  	ENDIF ()
  
  	ENABLE_TESTING()
  	IF (WINHTTP OR OPENSSL_FOUND OR SECURITY_FOUND)
  		ADD_TEST(libgit2_clar libgit2_clar -ionline)
  	ELSE ()
  		ADD_TEST(libgit2_clar libgit2_clar -v)
  	ENDIF ()
  
  	# Add a test target which runs the cred callback tests, to be
  	# called after setting the url and user
  	ADD_TEST(libgit2_clar-cred_callback libgit2_clar -v -sonline::clone::cred_callback)
  	ADD_TEST(libgit2_clar-proxy_credentials_in_url libgit2_clar -v -sonline::clone::proxy_credentials_in_url)
  	ADD_TEST(libgit2_clar-proxy_credentials_request libgit2_clar -v	-sonline::clone::proxy_credentials_request)
  ENDIF ()
  
  IF (TAGS)
  	FIND_PROGRAM(CTAGS ctags)
  	IF (NOT CTAGS)
  		MESSAGE(FATAL_ERROR "Could not find ctags command")
  	ENDIF ()
  
  	FILE(GLOB_RECURSE SRC_ALL *.[ch])
  
  	ADD_CUSTOM_COMMAND(
  		OUTPUT tags
  		COMMAND ${CTAGS} -a ${SRC_ALL}
  		DEPENDS ${SRC_ALL}
  	)
  	ADD_CUSTOM_TARGET(
  		do_tags ALL
  		DEPENDS tags
  	)
  ENDIF ()
  
  IF (BUILD_EXAMPLES)
  	ADD_SUBDIRECTORY(examples)
  ENDIF ()
  

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