[libgit2.git] / 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 2.8.11)
CMAKE_POLICY(SET CMP0015 NEW)
IF (POLICY CMP0051)
	CMAKE_POLICY(SET CMP0051 NEW)
ENDIF()
IF (POLICY CMP0042)
	CMAKE_POLICY(SET CMP0042 NEW)
ENDIF()

# Add find modules to the path
SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${libgit2_SOURCE_DIR}/cmake/Modules/")

INCLUDE(CheckLibraryExists)
INCLUDE(CheckFunctionExists)
INCLUDE(CheckSymbolExists)
INCLUDE(CheckStructHasMember)
INCLUDE(CheckPrototypeDefinition) # Added in CMake 3.0
INCLUDE(AddCFlagIfSupported)
INCLUDE(FindPkgLibraries)
INCLUDE(FindThreads)
INCLUDE(FindStatNsec)
INCLUDE(IdeSplitSources)
INCLUDE(FeatureSummary)
INCLUDE(EnableWarnings)

# 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 )

SET(SHA1_BACKEND "CollisionDetection" CACHE STRING "Backend to use for SHA1. One of Generic, OpenSSL, Win32, CommonCrypto, CollisionDetection. ")
OPTION( USE_SSH				"Link with libssh to enable SSH support" ON )
OPTION( USE_HTTPS			"Enable HTTPS support. Can be set to a specific backend"	ON )
OPTION( USE_GSSAPI			"Link with libgssapi for SPNEGO auth"   OFF )
OPTION( VALGRIND			"Configure build for valgrind"			OFF )
OPTION( CURL			"Use curl for HTTP if available" ON)
OPTION( USE_EXT_HTTP_PARSER		"Use system HTTP_Parser if available" ON)
OPTION( DEBUG_POOL			"Enable debug pool allocator"			OFF )
OPTION( ENABLE_WERROR			"Enable compilation with -Werror"		OFF )
OPTION( USE_BUNDLED_ZLIB    "Use the bundled version of zlib"       OFF )

IF (UNIX AND NOT APPLE)
	OPTION( ENABLE_REPRODUCIBLE_BUILDS	"Enable reproducible builds" 			OFF )
ENDIF()

IF (APPLE)
	OPTION( USE_ICONV			"Link with and use iconv library"		 ON )
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 )
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()

FILE(STRINGS "${libgit2_SOURCE_DIR}/include/git2/version.h" GIT2_HEADER REGEX "^#define LIBGIT2_VERSION \"[^\"]*\"$")

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 "${libgit2_SOURCE_DIR}/include/git2/version.h" GIT2_HEADER_SOVERSION REGEX "^#define LIBGIT2_SOVERSION [0-9]+$")
STRING(REGEX REPLACE "^.*LIBGIT2_SOVERSION ([0-9]+)$" "\\1" LIBGIT2_SOVERSION "${GIT2_HEADER_SOVERSION}")

# Platform specific compilation flags
IF (MSVC)
	ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS)
	ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE)
	ADD_DEFINITIONS(-D_CRT_NONSTDC_NO_DEPRECATE)

	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(GIT_MSVC_CRTDBG 1)
		SET(CRT_FLAG_DEBUG "${CRT_FLAG_DEBUG}")
		SET(CMAKE_C_STANDARD_LIBRARIES "${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}")
ELSE ()
	IF (ENABLE_REPRODUCIBLE_BUILDS)
		SET(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> Dqc <TARGET> <LINK_FLAGS> <OBJECTS>")
		SET(CMAKE_C_ARCHIVE_APPEND "<CMAKE_AR> Dq  <TARGET> <LINK_FLAGS> <OBJECTS>")
		SET(CMAKE_C_ARCHIVE_FINISH "<CMAKE_RANLIB> -D <TARGET>")
	ENDIF()

	SET(CMAKE_C_FLAGS "-D_GNU_SOURCE ${CMAKE_C_FLAGS}")

	ENABLE_WARNINGS(all)
	ENABLE_WARNINGS(extra)

	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()

	SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG -O0")

	IF (MINGW OR MSYS) # MinGW and MSYS always do PIC and complain if we tell them to
		STRING(REGEX REPLACE "-fPIC" "" CMAKE_SHARED_LIBRARY_C_FLAGS "${CMAKE_SHARED_LIBRARY_C_FLAGS}")
	ELSEIF (BUILD_SHARED_LIBS)
		ADD_C_FLAG_IF_SUPPORTED(-fvisibility=hidden)

		SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
	ENDIF ()

	IF (MINGW)
		# 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)
	ENDIF ()

	ENABLE_WARNINGS(documentation)
	DISABLE_WARNINGS(missing-field-initializers)
	ENABLE_WARNINGS(strict-aliasing)
	ENABLE_WARNINGS(strict-prototypes)
	ENABLE_WARNINGS(declaration-after-statement)
	ENABLE_WARNINGS(shift-count-overflow)
	DISABLE_WARNINGS(unused-const-variable)
	DISABLE_WARNINGS(unused-function)
	ENABLE_WARNINGS(format)
	ENABLE_WARNINGS(format-security)
	ENABLE_WARNINGS(int-conversion)

	IF (APPLE) # Apple deprecated OpenSSL
	    DISABLE_WARNINGS(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()

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()

ADD_SUBDIRECTORY(src)

# Tests
IF (NOT MSVC)
   IF (NOT BUILD_SHARED_LIBS)
       SET(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
   ENDIF()
ENDIF ()

IF (BUILD_CLAR)
	ENABLE_TESTING()
	ADD_SUBDIRECTORY(tests)
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 ()

IF(CMAKE_VERSION VERSION_GREATER 3)
	FEATURE_SUMMARY(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
	FEATURE_SUMMARY(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
ELSE()
	PRINT_ENABLED_FEATURES()
	PRINT_DISABLED_FEATURES()
ENDIF()
Commit	Line	Data
583cf169	1	# CMake build script for the libgit2 project
73c46d53	2	#
bfe0658e	3	# Building (out of source build):
73c46d53	4	# > mkdir build && cd build
bfe0658e PD	5	# > cmake .. [-DSETTINGS=VALUE]
bfe0658e PD	6	# > cmake --build .
932d1baf	7	#
73c46d53 PD	8	# Testing:
	9	# > ctest -V
	10	#
	11	# Install:
bfe0658e	12	# > cmake --build . --target install
73c46d53	13
583cf169	14	PROJECT(libgit2 C)
eae0bfdc	15	CMAKE_MINIMUM_REQUIRED(VERSION 2.8.11)
8f426d7d	16	CMAKE_POLICY(SET CMP0015 NEW)
eae0bfdc PP	17	IF (POLICY CMP0051)
	18	CMAKE_POLICY(SET CMP0051 NEW)
	19	ENDIF()
	20	IF (POLICY CMP0042)
	21	CMAKE_POLICY(SET CMP0042 NEW)
	22	ENDIF()
583cf169	23
7a6e0281	24	# Add find modules to the path
eae0bfdc	25	SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${libgit2_SOURCE_DIR}/cmake/Modules/")
7369b3c3	26
5bda607c	27	INCLUDE(CheckLibraryExists)
8649dfd8	28	INCLUDE(CheckFunctionExists)
ab96ca55	29	INCLUDE(CheckSymbolExists)
e9e6df2c	30	INCLUDE(CheckStructHasMember)
6c7cee42	31	INCLUDE(CheckPrototypeDefinition) # Added in CMake 3.0
5c8d5eac	32	INCLUDE(AddCFlagIfSupported)
4b3ec53c	33	INCLUDE(FindPkgLibraries)
eae0bfdc PP	34	INCLUDE(FindThreads)
	35	INCLUDE(FindStatNsec)
	36	INCLUDE(IdeSplitSources)
	37	INCLUDE(FeatureSummary)
	38	INCLUDE(EnableWarnings)
5bda607c	39
19a766a2 SC	40	# Build options
19a766a2 SC	41	#
058956ce	42	OPTION( SONAME "Set the (SO)VERSION of the target" ON )
19a766a2	43	OPTION( BUILD_SHARED_LIBS "Build Shared Library (OFF for Static)" ON )
79b0ae4e	44	OPTION( THREADSAFE "Build libgit2 as threadsafe" ON )
19a766a2 SC	45	OPTION( BUILD_CLAR "Build Tests using the Clar suite" ON )
	46	OPTION( BUILD_EXAMPLES "Build library usage example apps" OFF )
	47	OPTION( TAGS "Generate tags" OFF )
	48	OPTION( PROFILE "Generate profiling information" OFF )
b5ec5430	49	OPTION( ENABLE_TRACE "Enables tracing support" OFF )
92dac975	50	OPTION( LIBGIT2_FILENAME "Name of the produced binary" OFF )
c1cf1af4	51
eae0bfdc	52	SET(SHA1_BACKEND "CollisionDetection" CACHE STRING "Backend to use for SHA1. One of Generic, OpenSSL, Win32, CommonCrypto, CollisionDetection. ")
73291aff	53	OPTION( USE_SSH "Link with libssh to enable SSH support" ON )
eae0bfdc	54	OPTION( USE_HTTPS "Enable HTTPS support. Can be set to a specific backend" ON )
23135afa	55	OPTION( USE_GSSAPI "Link with libgssapi for SPNEGO auth" OFF )
7697e541	56	OPTION( VALGRIND "Configure build for valgrind" OFF )
13b0b7d5	57	OPTION( CURL "Use curl for HTTP if available" ON)
eae0bfdc	58	OPTION( USE_EXT_HTTP_PARSER "Use system HTTP_Parser if available" ON)
ed0571f8	59	OPTION( DEBUG_POOL "Enable debug pool allocator" OFF )
eae0bfdc PP	60	OPTION( ENABLE_WERROR "Enable compilation with -Werror" OFF )
eae0bfdc PP	61	OPTION( USE_BUNDLED_ZLIB "Use the bundled version of zlib" OFF )
ed0571f8	62
eae0bfdc PP	63	IF (UNIX AND NOT APPLE)
eae0bfdc PP	64	OPTION( ENABLE_REPRODUCIBLE_BUILDS "Enable reproducible builds" OFF )
ed0571f8	65	ENDIF()
73291aff	66
eae0bfdc PP	67	IF (APPLE)
eae0bfdc PP	68	OPTION( USE_ICONV "Link with and use iconv library" ON )
92dac975	69	ENDIF()
82b2fc2c	70
19a766a2	71	IF(MSVC)
275d8d55	72	# This option is only available when building with MSVC. By default, libgit2
e49dc687 BS	73	# is build using the cdecl calling convention, which is useful if you're
e49dc687 BS	74	# writing C. However, the CLR and Win32 API both expect stdcall.
19a766a2	75	#
e49dc687 BS	76	# If you are writing a CLR program and want to link to libgit2, you'll want
	77	# to turn this on by invoking CMake with the "-DSTDCALL=ON" argument.
	78	OPTION( STDCALL "Build libgit2 with the __stdcall convention" OFF )
08f32085 Q	79
	80	# This option must match the settings used in your program, in particular if you
	81	# are linking statically
	82	OPTION( STATIC_CRT "Link the static CRT libraries" ON )
1bfe7133	83
01fe8374 CMN	84	# If you want to embed a copy of libssh2 into libgit2, pass a
	85	# path to libssh2
	86	OPTION( EMBED_SSH_PATH "Path to libssh2 to embed (Windows)" OFF )
19a766a2 SC	87	ENDIF()
19a766a2 SC	88
6bb54cbf	89
8f426d7d PK	90	IF(WIN32)
	91	# By default, libgit2 is built with WinHTTP. To use the built-in
	92	# HTTP transport, invoke CMake with the "-DWINHTTP=OFF" argument.
	93	OPTION( WINHTTP "Use Win32 WinHTTP routines" ON )
	94	ENDIF()
	95
d06c589f JH	96	IF(MSVC)
	97	# Enable MSVC CRTDBG memory leak reporting when in debug mode.
	98	OPTION(MSVC_CRTDBG "Enable CRTDBG memory leak reporting" OFF)
	99	ENDIF()
	100
eae0bfdc	101	FILE(STRINGS "${libgit2_SOURCE_DIR}/include/git2/version.h" GIT2_HEADER REGEX "^#define LIBGIT2_VERSION \"[^\"]*\"$")
9d1dcca2 VM	102
	103	STRING(REGEX REPLACE "^.LIBGIT2_VERSION \"([0-9]+).$" "\\1" LIBGIT2_VERSION_MAJOR "${GIT2_HEADER}")
	104	STRING(REGEX REPLACE "^.LIBGIT2_VERSION \"[0-9]+\\.([0-9]+).$" "\\1" LIBGIT2_VERSION_MINOR "${GIT2_HEADER}")
	105	STRING(REGEX REPLACE "^.LIBGIT2_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).$" "\\1" LIBGIT2_VERSION_REV "${GIT2_HEADER}")
	106	SET(LIBGIT2_VERSION_STRING "${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}.${LIBGIT2_VERSION_REV}")
	107
eae0bfdc	108	FILE(STRINGS "${libgit2_SOURCE_DIR}/include/git2/version.h" GIT2_HEADER_SOVERSION REGEX "^#define LIBGIT2_SOVERSION [0-9]+$")
99807672 CMN	109	STRING(REGEX REPLACE "^.*LIBGIT2_SOVERSION ([0-9]+)$" "\\1" LIBGIT2_SOVERSION "${GIT2_HEADER_SOVERSION}")
99807672 CMN	110
502dd2da	111	# Platform specific compilation flags
dcd62cb2	112	IF (MSVC)
eae0bfdc PP	113	ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS)
	114	ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE)
	115	ADD_DEFINITIONS(-D_CRT_NONSTDC_NO_DEPRECATE)
dcd62cb2	116
ccf1a2ba	117	STRING(REPLACE "/Zm1000" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
94155e2f	118
19be3f9e PK	119	# /GF - String pooling
	120	# /MP - Parallel build
	121	SET(CMAKE_C_FLAGS "/GF /MP /nologo ${CMAKE_C_FLAGS}")
	122
1b5078f6	123	IF (STDCALL)
19be3f9e PK	124	# /Gz - stdcall calling convention
19be3f9e PK	125	SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Gz")
1b5078f6	126	ENDIF ()
19be3f9e	127
08f32085 Q	128	IF (STATIC_CRT)
	129	SET(CRT_FLAG_DEBUG "/MTd")
	130	SET(CRT_FLAG_RELEASE "/MT")
	131	ELSE()
ccf1a2ba	132	SET(CRT_FLAG_DEBUG "/MDd")
08f32085 Q	133	SET(CRT_FLAG_RELEASE "/MD")
	134	ENDIF()
	135
d06c589f	136	IF (MSVC_CRTDBG)
eae0bfdc PP	137	SET(GIT_MSVC_CRTDBG 1)
	138	SET(CRT_FLAG_DEBUG "${CRT_FLAG_DEBUG}")
	139	SET(CMAKE_C_STANDARD_LIBRARIES "${CMAKE_C_STANDARD_LIBRARIES} Dbghelp.lib")
d06c589f JH	140	ENDIF()
d06c589f JH	141
19be3f9e PK	142	# /Zi - Create debugging information
	143	# /Od - Disable optimization
	144	# /D_DEBUG - #define _DEBUG
	145	# /MTd - Statically link the multithreaded debug version of the CRT
08f32085	146	# /MDd - Dynamically link the multithreaded debug version of the CRT
19be3f9e	147	# /RTC1 - Run time checks
08f030ce	148	SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Zi /Od /D_DEBUG /RTC1 ${CRT_FLAG_DEBUG}")
19be3f9e	149
69c28b75	150	# /DNDEBUG - Disables asserts
19be3f9e	151	# /MT - Statically link the multithreaded release version of the CRT
08f32085	152	# /MD - Dynamically link the multithreaded release version of the CRT
19be3f9e PK	153	# /O2 - Optimize for speed
	154	# /Oy - Enable frame pointer omission (FPO) (otherwise CMake will automatically turn it off)
	155	# /GL - Link time code generation (whole program optimization)
	156	# /Gy - Function-level linking
08f32085	157	SET(CMAKE_C_FLAGS_RELEASE "/DNDEBUG /O2 /Oy /GL /Gy ${CRT_FLAG_RELEASE}")
19be3f9e PK	158
19be3f9e PK	159	# /Oy- - Disable frame pointer omission (FPO)
08f32085	160	SET(CMAKE_C_FLAGS_RELWITHDEBINFO "/DNDEBUG /Zi /O2 /Oy- /GL /Gy ${CRT_FLAG_RELEASE}")
19be3f9e PK	161
19be3f9e PK	162	# /O1 - Optimize for size
08f32085	163	SET(CMAKE_C_FLAGS_MINSIZEREL "/DNDEBUG /O1 /Oy /GL /Gy ${CRT_FLAG_RELEASE}")
19be3f9e PK	164
	165	# /DYNAMICBASE - Address space load randomization (ASLR)
	166	# /NXCOMPAT - Data execution prevention (DEP)
	167	# /LARGEADDRESSAWARE - >2GB user address space on x86
	168	# /VERSION - Embed version information in PE header
	169	SET(CMAKE_EXE_LINKER_FLAGS "/DYNAMICBASE /NXCOMPAT /LARGEADDRESSAWARE /VERSION:${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}")
	170
	171	# /DEBUG - Create a PDB
	172	# /LTCG - Link time code generation (whole program optimization)
	173	# /OPT:REF /OPT:ICF - Fold out duplicate code at link step
	174	# /INCREMENTAL:NO - Required to use /LTCG
	175	# /DEBUGTYPE:cv,fixup - Additional data embedded in the PDB (requires /INCREMENTAL:NO, so not on for Debug)
	176	SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "/DEBUG")
	177	SET(CMAKE_EXE_LINKER_FLAGS_RELEASE "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
	178	SET(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "/DEBUG /RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO /DEBUGTYPE:cv,fixup")
	179	SET(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
	180
	181	# Same linker settings for DLL as EXE
	182	SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
	183	SET(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
	184	SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
	185	SET(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}")
	186	SET(CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL}")
e233fa6f	187	ELSE ()
eae0bfdc PP	188	IF (ENABLE_REPRODUCIBLE_BUILDS)
	189	SET(CMAKE_C_ARCHIVE_CREATE "<CMAKE_AR> Dqc <TARGET> <LINK_FLAGS> <OBJECTS>")
	190	SET(CMAKE_C_ARCHIVE_APPEND "<CMAKE_AR> Dq <TARGET> <LINK_FLAGS> <OBJECTS>")
	191	SET(CMAKE_C_ARCHIVE_FINISH "<CMAKE_RANLIB> -D <TARGET>")
	192	ENDIF()
	193
a02e8a38 PS	194	SET(CMAKE_C_FLAGS "-D_GNU_SOURCE ${CMAKE_C_FLAGS}")
a02e8a38 PS	195
eae0bfdc PP	196	ENABLE_WARNINGS(all)
eae0bfdc PP	197	ENABLE_WARNINGS(extra)
19be3f9e	198
98b8fcff JG	199	IF (CMAKE_SYSTEM_NAME MATCHES "(Solaris\|SunOS)")
	200	SET(CMAKE_C_FLAGS "-std=c99 -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS ${CMAKE_C_FLAGS}")
	201	ENDIF()
	202
a64532e1	203	SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG -O0")
19be3f9e	204
b6a2fd0e	205	IF (MINGW OR MSYS) # MinGW and MSYS always do PIC and complain if we tell them to
2eb18449	206	STRING(REGEX REPLACE "-fPIC" "" CMAKE_SHARED_LIBRARY_C_FLAGS "${CMAKE_SHARED_LIBRARY_C_FLAGS}")
b41e24a6	207	ELSEIF (BUILD_SHARED_LIBS)
5c8d5eac	208	ADD_C_FLAG_IF_SUPPORTED(-fvisibility=hidden)
c6cd3f8b JG	209
c6cd3f8b JG	210	SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
39cdf272	211	ENDIF ()
c6cd3f8b	212
b6a2fd0e PS	213	IF (MINGW)
	214	# MinGW >= 3.14 uses the C99-style stdio functions
	215	# automatically, but forks like mingw-w64 still want
	216	# us to define this in order to use them
	217	ADD_DEFINITIONS(-D__USE_MINGW_ANSI_STDIO=1)
	218	ENDIF ()
	219
eae0bfdc PP	220	ENABLE_WARNINGS(documentation)
	221	DISABLE_WARNINGS(missing-field-initializers)
	222	ENABLE_WARNINGS(strict-aliasing)
	223	ENABLE_WARNINGS(strict-prototypes)
	224	ENABLE_WARNINGS(declaration-after-statement)
	225	ENABLE_WARNINGS(shift-count-overflow)
	226	DISABLE_WARNINGS(unused-const-variable)
	227	DISABLE_WARNINGS(unused-function)
6c7cee42 RD	228	ENABLE_WARNINGS(format)
	229	ENABLE_WARNINGS(format-security)
	230	ENABLE_WARNINGS(int-conversion)
c6cd3f8b	231
364ef528	232	IF (APPLE) # Apple deprecated OpenSSL
eae0bfdc	233	DISABLE_WARNINGS(deprecated-declarations)
c6cd3f8b	234	ENDIF()
823c0e9c	235
706a9974 RB	236	IF (PROFILE)
	237	SET(CMAKE_C_FLAGS "-pg ${CMAKE_C_FLAGS}")
	238	SET(CMAKE_EXE_LINKER_FLAGS "-pg ${CMAKE_EXE_LINKER_FLAGS}")
	239	ENDIF ()
90412507	240	ENDIF()
5b8bb8e7	241
88149fae PT	242	IF( NOT CMAKE_CONFIGURATION_TYPES )
	243	# Build Debug by default
	244	IF (NOT CMAKE_BUILD_TYPE)
	245	SET(CMAKE_BUILD_TYPE "Debug" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel." FORCE)
	246	ENDIF ()
	247	ELSE()
	248	# Using a multi-configuration generator eg MSVC or Xcode
	249	# that uses CMAKE_CONFIGURATION_TYPES and not CMAKE_BUILD_TYPE
	250	ENDIF()
583cf169	251
eae0bfdc	252	ADD_SUBDIRECTORY(src)
678e9e04	253
eae0bfdc PP	254	# Tests
	255	IF (NOT MSVC)
	256	IF (NOT BUILD_SHARED_LIBS)
	257	SET(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
	258	ENDIF()
73aaf674 BS	259	ENDIF ()
73aaf674 BS	260
3fd1520c	261	IF (BUILD_CLAR)
f1558d9b	262	ENABLE_TESTING()
eae0bfdc	263	ADD_SUBDIRECTORY(tests)
f1558d9b	264	ENDIF ()
e632f687 CB	265
	266	IF (TAGS)
	267	FIND_PROGRAM(CTAGS ctags)
	268	IF (NOT CTAGS)
48ce93e0	269	MESSAGE(FATAL_ERROR "Could not find ctags command")
e632f687 CB	270	ENDIF ()
	271
	272	FILE(GLOB_RECURSE SRC_ALL *.[ch])
	273
	274	ADD_CUSTOM_COMMAND(
	275	OUTPUT tags
	276	COMMAND ${CTAGS} -a ${SRC_ALL}
	277	DEPENDS ${SRC_ALL}
	278	)
	279	ADD_CUSTOM_TARGET(
	280	do_tags ALL
	281	DEPENDS tags
	282	)
	283	ENDIF ()
62986ff6 SG	284
62986ff6 SG	285	IF (BUILD_EXAMPLES)
60ee53df	286	ADD_SUBDIRECTORY(examples)
583cf169	287	ENDIF ()
eae0bfdc PP	288
	289	IF(CMAKE_VERSION VERSION_GREATER 3)
	290	FEATURE_SUMMARY(WHAT ENABLED_FEATURES DESCRIPTION "Enabled features:")
	291	FEATURE_SUMMARY(WHAT DISABLED_FEATURES DESCRIPTION "Disabled features:")
	292	ELSE()
	293	PRINT_ENABLED_FEATURES()
	294	PRINT_DISABLED_FEATURES()
	295	ENDIF()