CMakeLists.txt

   1 # CMake build script for the libgit2 project
   2 #
   3 # Building (out of source build):
   4 # > mkdir build && cd build
   5 # > cmake .. [-DSETTINGS=VALUE]
   6 # > cmake --build .
   7 #
   8 # Testing:
   9 # > ctest -V
  10 #
  11 # Install:
  12 # > cmake --build . --target install
  13
  14 PROJECT(libgit2 C)
  15 CMAKE_MINIMUM_REQUIRED(VERSION 2.8)
  16 CMAKE_POLICY(SET CMP0015 NEW)
  17
  18 # Add find modules to the path
  19 SET(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules/")
  20
  21 INCLUDE(CheckLibraryExists)
  22 INCLUDE(CheckFunctionExists)
  23 INCLUDE(CheckStructHasMember)
  24 INCLUDE(AddCFlagIfSupported)
  25 INCLUDE(FindPkgConfig)
  26
  27 # Build options
  28 #
  29 OPTION( SONAME                          "Set the (SO)VERSION of the target"             ON  )
  30 OPTION( BUILD_SHARED_LIBS       "Build Shared Library (OFF for Static)" ON  )
  31 OPTION( THREADSAFE                      "Build libgit2 as threadsafe"                   ON )
  32 OPTION( BUILD_CLAR                      "Build Tests using the Clar suite"              ON  )
  33 OPTION( BUILD_EXAMPLES          "Build library usage example apps"              OFF )
  34 OPTION( TAGS                            "Generate tags"                                                 OFF )
  35 OPTION( PROFILE                         "Generate profiling information"                OFF )
  36 OPTION( ENABLE_TRACE            "Enables tracing support"                               OFF )
  37 OPTION( LIBGIT2_FILENAME        "Name of the produced binary"                   OFF )
  38
  39 OPTION( USE_ICONV                       "Link with and use iconv library"               OFF )
  40 OPTION( USE_SSH                         "Link with libssh to enable SSH support" ON )
  41 OPTION( USE_GSSAPI                      "Link with libgssapi for SPNEGO auth"   OFF )
  42 OPTION( VALGRIND                        "Configure build for valgrind"                  OFF )
  43 OPTION( CURL                    "User curl for HTTP if available" ON)
  44 OPTION( DEBUG_POOL                      "Enable debug pool allocator"                   OFF )
  45
  46 IF(DEBUG_POOL)
  47         ADD_DEFINITIONS(-DGIT_DEBUG_POOL)
  48 ENDIF()
  49
  50 IF(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
  51         SET( USE_ICONV ON )
  52         FIND_PACKAGE(Security)
  53         FIND_PACKAGE(CoreFoundation REQUIRED)
  54 ENDIF()
  55
  56 IF(MSVC)
  57         # This option is only available when building with MSVC. By default, libgit2
  58         # is build using the cdecl calling convention, which is useful if you're
  59         # writing C. However, the CLR and Win32 API both expect stdcall.
  60         #
  61         # If you are writing a CLR program and want to link to libgit2, you'll want
  62         # to turn this on by invoking CMake with the "-DSTDCALL=ON" argument.
  63         OPTION( STDCALL                 "Build libgit2 with the __stdcall convention"   OFF  )
  64
  65         # This option must match the settings used in your program, in particular if you
  66         # are linking statically
  67         OPTION( STATIC_CRT              "Link the static CRT libraries" ON  )
  68
  69         # If you want to embed a copy of libssh2 into libgit2, pass a
  70         # path to libssh2
  71         OPTION( EMBED_SSH_PATH          "Path to libssh2 to embed (Windows)" OFF )
  72
  73         ADD_DEFINITIONS(-D_SCL_SECURE_NO_WARNINGS)
  74         ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE)
  75         ADD_DEFINITIONS(-D_CRT_NONSTDC_NO_DEPRECATE)
  76 ENDIF()
  77
  78
  79 IF(WIN32)
  80         # By default, libgit2 is built with WinHTTP.  To use the built-in
  81         # HTTP transport, invoke CMake with the "-DWINHTTP=OFF" argument.
  82         OPTION( WINHTTP                 "Use Win32 WinHTTP routines"    ON      )
  83 ENDIF()
  84
  85 IF(MSVC)
  86         # Enable MSVC CRTDBG memory leak reporting when in debug mode.
  87         OPTION(MSVC_CRTDBG "Enable CRTDBG memory leak reporting" OFF)
  88 ENDIF()
  89
  90 IF (NOT ${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
  91         OPTION( USE_OPENSSL                     "Link with and use openssl library"             ON )
  92 ENDIF()
  93
  94 CHECK_STRUCT_HAS_MEMBER ("struct stat" st_mtim "sys/types.h;sys/stat.h"
  95         HAVE_STRUCT_STAT_ST_MTIM LANGUAGE C)
  96 CHECK_STRUCT_HAS_MEMBER ("struct stat" st_mtimespec "sys/types.h;sys/stat.h"
  97         HAVE_STRUCT_STAT_ST_MTIMESPEC LANGUAGE C)
  98 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtime_nsec sys/stat.h
  99         HAVE_STRUCT_STAT_MTIME_NSEC LANGUAGE C)
 100
 101 IF (HAVE_STRUCT_STAT_ST_MTIM)
 102         CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec sys/stat.h
 103                 HAVE_STRUCT_STAT_NSEC LANGUAGE C)
 104 ELSEIF (HAVE_STRUCT_STAT_ST_MTIMESPEC)
 105         CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec sys/stat.h
 106                 HAVE_STRUCT_STAT_NSEC LANGUAGE C)
 107 ELSE ()
 108         SET( HAVE_STRUCT_STAT_NSEC ON )
 109 ENDIF()
 110
 111 IF (HAVE_STRUCT_STAT_NSEC OR WIN32)
 112         OPTION( USE_NSEC                "Care about sub-second file mtimes and ctimes"  OFF )
 113 ENDIF()
 114
 115 # This variable will contain the libraries we need to put into
 116 # libgit2.pc's Requires.private. That is, what we're linking to or
 117 # what someone who's statically linking us needs to link to.
 118 SET(LIBGIT2_PC_REQUIRES "")
 119 # This will be set later if we use the system's http-parser library or
 120 # use iconv (OSX) and will be written to the Libs.private field in the
 121 # pc file.
 122 SET(LIBGIT2_PC_LIBS "")
 123
 124 # Installation paths
 125 #
 126 SET(BIN_INSTALL_DIR bin CACHE PATH "Where to install binaries to.")
 127 SET(LIB_INSTALL_DIR lib CACHE PATH "Where to install libraries to.")
 128 SET(INCLUDE_INSTALL_DIR include CACHE PATH "Where to install headers to.")
 129
 130 # Set a couple variables to be substituted inside the .pc file.
 131 # We can't just use LIB_INSTALL_DIR in the .pc file, as passing them as absolue
 132 # or relative paths is both valid and supported by cmake.
 133 SET (PKGCONFIG_PREFIX ${CMAKE_INSTALL_PREFIX})
 134
 135 IF(IS_ABSOLUTE ${LIB_INSTALL_DIR})
 136   SET (PKGCONFIG_LIBDIR ${LIB_INSTALL_DIR})
 137 ELSE(IS_ABSOLUTE ${LIB_INSTALL_DIR})
 138   SET (PKGCONFIG_LIBDIR "\${prefix}/${LIB_INSTALL_DIR}")
 139 ENDIF (IS_ABSOLUTE ${LIB_INSTALL_DIR})
 140
 141 IF(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
 142   SET (PKGCONFIG_INCLUDEDIR ${INCLUDE_INSTALL_DIR})
 143 ELSE(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
 144   SET (PKGCONFIG_INCLUDEDIR "\${prefix}/${INCLUDE_INSTALL_DIR}")
 145 ENDIF(IS_ABSOLUTE ${INCLUDE_INSTALL_DIR})
 146
 147 FUNCTION(TARGET_OS_LIBRARIES target)
 148         IF(WIN32)
 149                 TARGET_LINK_LIBRARIES(${target} ws2_32)
 150         ELSEIF(CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
 151                 TARGET_LINK_LIBRARIES(${target} socket nsl)
 152                 LIST(APPEND LIBGIT2_PC_LIBS "-lsocket" "-lnsl")
 153                 SET(LIBGIT2_PC_LIBS ${LIBGIT2_PC_LIBS} PARENT_SCOPE)
 154         ENDIF()
 155         CHECK_LIBRARY_EXISTS(rt clock_gettime "time.h" NEED_LIBRT)
 156         IF(NEED_LIBRT)
 157                 TARGET_LINK_LIBRARIES(${target} rt)
 158                 LIST(APPEND LIBGIT2_PC_LIBS "-lrt")
 159                 SET(LIBGIT2_PC_LIBS ${LIBGIT2_PC_LIBS} PARENT_SCOPE)
 160         ENDIF()
 161
 162         IF(THREADSAFE)
 163                 TARGET_LINK_LIBRARIES(${target} ${CMAKE_THREAD_LIBS_INIT})
 164                 LIST(APPEND LIBGIT2_PC_LIBS ${CMAKE_THREAD_LIBS_INIT})
 165                 SET(LIBGIT2_PC_LIBS ${LIBGIT2_PC_LIBS} PARENT_SCOPE)
 166         ENDIF()
 167 ENDFUNCTION()
 168
 169 # This function splits the sources files up into their appropriate
 170 # subdirectories.  This is especially useful for IDEs like Xcode and
 171 # Visual Studio, so that you can navigate into the libgit2_clar project,
 172 # and see the folders within the tests folder (instead of just seeing all
 173 # source and tests in a single folder.)
 174 FUNCTION(IDE_SPLIT_SOURCES target)
 175         IF(MSVC_IDE OR CMAKE_GENERATOR STREQUAL Xcode)
 176                 GET_TARGET_PROPERTY(sources ${target} SOURCES)
 177                 FOREACH(source ${sources})
 178                         IF(source MATCHES ".*/")
 179                                 STRING(REPLACE ${CMAKE_CURRENT_SOURCE_DIR}/ "" rel ${source})
 180                                 IF(rel)
 181                                         STRING(REGEX REPLACE "/([^/]*)$" "" rel ${rel})
 182                                         IF(rel)
 183                                                 STRING(REPLACE "/" "\\\\" rel ${rel})
 184                                                 SOURCE_GROUP(${rel} FILES ${source})
 185                                         ENDIF()
 186                                 ENDIF()
 187                         ENDIF()
 188                 ENDFOREACH()
 189         ENDIF()
 190 ENDFUNCTION()
 191
 192 FILE(STRINGS "include/git2/version.h" GIT2_HEADER REGEX "^#define LIBGIT2_VERSION \"[^\"]*\"$")
 193
 194 STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"([0-9]+).*$" "\\1" LIBGIT2_VERSION_MAJOR "${GIT2_HEADER}")
 195 STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_MINOR  "${GIT2_HEADER}")
 196 STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_REV "${GIT2_HEADER}")
 197 SET(LIBGIT2_VERSION_STRING "${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}.${LIBGIT2_VERSION_REV}")
 198
 199 FILE(STRINGS "include/git2/version.h" GIT2_HEADER_SOVERSION REGEX "^#define LIBGIT2_SOVERSION [0-9]+$")
 200 STRING(REGEX REPLACE "^.*LIBGIT2_SOVERSION ([0-9]+)$" "\\1" LIBGIT2_SOVERSION "${GIT2_HEADER_SOVERSION}")
 201
 202 # Find required dependencies
 203 INCLUDE_DIRECTORIES(src include)
 204
 205 IF (SECURITY_FOUND)
 206   # OS X 10.7 and older do not have some functions we use, fall back to OpenSSL there
 207   CHECK_LIBRARY_EXISTS("${SECURITY_DIRS}" SSLCreateContext "Security/SecureTransport.h" HAVE_NEWER_SECURITY)
 208   IF (HAVE_NEWER_SECURITY)
 209     MESSAGE("-- Found Security ${SECURITY_DIRS}")
 210     LIST(APPEND LIBGIT2_PC_LIBS "-framework Security")
 211   ELSE()
 212     MESSAGE("-- Security framework is too old, falling back to OpenSSL")
 213     SET(SECURITY_FOUND "NO")
 214     SET(SECURITY_DIRS "")
 215     SET(SECURITY_DIR "")
 216     SET(USE_OPENSSL "ON")
 217   ENDIF()
 218 ENDIF()
 219
 220 IF (COREFOUNDATION_FOUND)
 221   MESSAGE("-- Found CoreFoundation ${COREFOUNDATION_DIRS}")
 222   LIST(APPEND LIBGIT2_PC_LIBS "-framework CoreFoundation")
 223 ENDIF()
 224
 225
 226 IF (WIN32 AND EMBED_SSH_PATH)
 227         FILE(GLOB SRC_SSH "${EMBED_SSH_PATH}/src/*.c")
 228         INCLUDE_DIRECTORIES("${EMBED_SSH_PATH}/include")
 229         FILE(WRITE "${EMBED_SSH_PATH}/src/libssh2_config.h" "#define HAVE_WINCNG\n#define LIBSSH2_WINCNG\n#include \"../win32/libssh2_config.h\"")
 230         ADD_DEFINITIONS(-DGIT_SSH)
 231 ENDIF()
 232
 233 IF (WIN32 AND WINHTTP)
 234         ADD_DEFINITIONS(-DGIT_WINHTTP)
 235         INCLUDE_DIRECTORIES(deps/http-parser)
 236         FILE(GLOB SRC_HTTP deps/http-parser/*.c deps/http-parser/*.h)
 237
 238         # Since MinGW does not come with headers or an import library for winhttp,
 239         # we have to include a private header and generate our own import library
 240         IF (MINGW)
 241                 FIND_PROGRAM(DLLTOOL dlltool CMAKE_FIND_ROOT_PATH_BOTH)
 242                 IF (NOT DLLTOOL)
 243                         MESSAGE(FATAL_ERROR "Could not find dlltool command")
 244                 ENDIF ()
 245
 246                 SET(LIBWINHTTP_PATH "${CMAKE_CURRENT_BINARY_DIR}/deps/winhttp")
 247                 FILE(MAKE_DIRECTORY ${LIBWINHTTP_PATH})
 248
 249                 IF (CMAKE_SIZEOF_VOID_P EQUAL 8)
 250                         set(WINHTTP_DEF "${CMAKE_CURRENT_SOURCE_DIR}/deps/winhttp/winhttp64.def")
 251                 ELSE()
 252                         set(WINHTTP_DEF "${CMAKE_CURRENT_SOURCE_DIR}/deps/winhttp/winhttp.def")
 253                 ENDIF()
 254
 255                 ADD_CUSTOM_COMMAND(
 256                         OUTPUT ${LIBWINHTTP_PATH}/libwinhttp.a
 257                         COMMAND ${DLLTOOL} -d ${WINHTTP_DEF} -k -D winhttp.dll -l libwinhttp.a
 258                         DEPENDS ${WINHTTP_DEF}
 259                         WORKING_DIRECTORY ${LIBWINHTTP_PATH}
 260                 )
 261
 262                 SET_SOURCE_FILES_PROPERTIES(
 263                         ${CMAKE_CURRENT_SOURCE_DIR}/src/transports/winhttp.c
 264                         PROPERTIES OBJECT_DEPENDS ${LIBWINHTTP_PATH}/libwinhttp.a
 265                 )
 266
 267                 INCLUDE_DIRECTORIES(deps/winhttp)
 268                 LINK_DIRECTORIES(${LIBWINHTTP_PATH})
 269         ENDIF ()
 270
 271         LINK_LIBRARIES(winhttp rpcrt4 crypt32 ole32)
 272         LIST(APPEND LIBGIT2_PC_LIBS "-lwinhttp" "-lrpcrt4" "-lcrypt32" "-lole32")
 273 ELSE ()
 274         IF (CURL)
 275                 PKG_CHECK_MODULES(CURL libcurl)
 276         ENDIF ()
 277
 278         IF (NOT AMIGA AND USE_OPENSSL)
 279                 FIND_PACKAGE(OpenSSL)
 280         ENDIF ()
 281
 282         IF (CURL_FOUND)
 283                 ADD_DEFINITIONS(-DGIT_CURL)
 284                 INCLUDE_DIRECTORIES(${CURL_INCLUDE_DIRS})
 285                 LINK_LIBRARIES(${CURL_LIBRARIES})
 286                 LIST(APPEND LIBGIT2_PC_LIBS ${CURL_LDFLAGS})
 287         ENDIF()
 288
 289         FIND_PACKAGE(HTTP_Parser)
 290         IF (HTTP_PARSER_FOUND AND HTTP_PARSER_VERSION_MAJOR EQUAL 2)
 291                 INCLUDE_DIRECTORIES(${HTTP_PARSER_INCLUDE_DIRS})
 292                 LINK_LIBRARIES(${HTTP_PARSER_LIBRARIES})
 293                 LIST(APPEND LIBGIT2_PC_LIBS "-lhttp_parser")
 294         ELSE()
 295                 MESSAGE(STATUS "http-parser was not found or is too old; using bundled 3rd-party sources.")
 296                 INCLUDE_DIRECTORIES(deps/http-parser)
 297                 FILE(GLOB SRC_HTTP deps/http-parser/*.c deps/http-parser/*.h)
 298         ENDIF()
 299 ENDIF()
 300
 301 # Specify sha1 implementation
 302 IF (WIN32 AND NOT MINGW AND NOT SHA1_TYPE STREQUAL "builtin")
 303         ADD_DEFINITIONS(-DWIN32_SHA1)
 304         FILE(GLOB SRC_SHA1 src/hash/hash_win32.c)
 305 ELSEIF (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
 306         ADD_DEFINITIONS(-DGIT_COMMON_CRYPTO)
 307 ELSEIF (OPENSSL_FOUND AND NOT SHA1_TYPE STREQUAL "builtin")
 308         ADD_DEFINITIONS(-DOPENSSL_SHA1)
 309         IF (CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
 310                 LIST(APPEND LIBGIT2_PC_LIBS "-lssl")
 311         ELSE()
 312                 SET(LIBGIT2_PC_REQUIRES "${LIBGIT2_PC_REQUIRES} openssl")
 313         ENDIF ()
 314 ELSE()
 315         FILE(GLOB SRC_SHA1 src/hash/hash_generic.c)
 316 ENDIF()
 317
 318 # Enable tracing
 319 IF (ENABLE_TRACE STREQUAL "ON")
 320         ADD_DEFINITIONS(-DGIT_TRACE)
 321 ENDIF()
 322
 323 # Include POSIX regex when it is required
 324 IF(WIN32 OR AMIGA OR CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
 325         INCLUDE_DIRECTORIES(deps/regex)
 326         SET(SRC_REGEX deps/regex/regex.c)
 327 ENDIF()
 328
 329 # Optional external dependency: zlib
 330 FIND_PACKAGE(ZLIB)
 331 IF (ZLIB_FOUND)
 332         INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIRS})
 333         LINK_LIBRARIES(${ZLIB_LIBRARIES})
 334         IF(APPLE OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
 335                 LIST(APPEND LIBGIT2_PC_LIBS "-lz")
 336         ELSE()
 337                 SET(LIBGIT2_PC_REQUIRES "${LIBGIT2_PC_REQUIRES} zlib")
 338         ENDIF()
 339 ELSE()
 340         MESSAGE(STATUS "zlib was not found; using bundled 3rd-party sources." )
 341         INCLUDE_DIRECTORIES(deps/zlib)
 342         ADD_DEFINITIONS(-DNO_VIZ -DSTDC -DNO_GZIP)
 343         FILE(GLOB SRC_ZLIB deps/zlib/*.c deps/zlib/*.h)
 344 ENDIF()
 345
 346 # Optional external dependency: libssh2
 347 IF (USE_SSH)
 348         PKG_CHECK_MODULES(LIBSSH2 libssh2)
 349 ENDIF()
 350 IF (LIBSSH2_FOUND)
 351         ADD_DEFINITIONS(-DGIT_SSH)
 352         INCLUDE_DIRECTORIES(${LIBSSH2_INCLUDE_DIRS})
 353         LINK_DIRECTORIES(${LIBSSH2_LIBRARY_DIRS})
 354         LIST(APPEND LIBGIT2_PC_LIBS ${LIBSSH2_LDFLAGS})
 355         #SET(LIBGIT2_PC_LIBS "${LIBGIT2_PC_LIBS} ${LIBSSH2_LDFLAGS}")
 356         SET(SSH_LIBRARIES ${LIBSSH2_LIBRARIES})
 357
 358         CHECK_LIBRARY_EXISTS("${LIBSSH2_LIBRARIES}" libssh2_userauth_publickey_frommemory "${LIBSSH2_LIBRARY_DIRS}" HAVE_LIBSSH2_MEMORY_CREDENTIALS)
 359         IF (HAVE_LIBSSH2_MEMORY_CREDENTIALS)
 360                 ADD_DEFINITIONS(-DGIT_SSH_MEMORY_CREDENTIALS)
 361         ENDIF()
 362 ELSE()
 363         MESSAGE(STATUS "LIBSSH2 not found. Set CMAKE_PREFIX_PATH if it is installed outside of the default search path.")
 364 ENDIF()
 365
 366 # Optional external dependency: libgssapi
 367 IF (USE_GSSAPI)
 368         FIND_PACKAGE(GSSAPI)
 369 ENDIF()
 370 IF (GSSAPI_FOUND)
 371         ADD_DEFINITIONS(-DGIT_GSSAPI)
 372 ENDIF()
 373
 374 # Optional external dependency: iconv
 375 IF (USE_ICONV)
 376         FIND_PACKAGE(Iconv)
 377 ENDIF()
 378 IF (ICONV_FOUND)
 379         ADD_DEFINITIONS(-DGIT_USE_ICONV)
 380         INCLUDE_DIRECTORIES(${ICONV_INCLUDE_DIR})
 381         LIST(APPEND LIBGIT2_PC_LIBS ${ICONV_LIBRARIES})
 382 ENDIF()
 383
 384 # Platform specific compilation flags
 385 IF (MSVC)
 386
 387         STRING(REPLACE "/Zm1000" " " CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
 388
 389         # /GF - String pooling
 390         # /MP - Parallel build
 391         SET(CMAKE_C_FLAGS "/GF /MP /nologo ${CMAKE_C_FLAGS}")
 392
 393         IF (STDCALL)
 394                 # /Gz - stdcall calling convention
 395                 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Gz")
 396         ENDIF ()
 397
 398         IF (STATIC_CRT)
 399                 SET(CRT_FLAG_DEBUG "/MTd")
 400                 SET(CRT_FLAG_RELEASE "/MT")
 401         ELSE()
 402                 SET(CRT_FLAG_DEBUG "/MDd")
 403                 SET(CRT_FLAG_RELEASE "/MD")
 404         ENDIF()
 405
 406         IF (MSVC_CRTDBG)
 407                 SET(CRT_FLAG_DEBUG "${CRT_FLAG_DEBUG} /DGIT_MSVC_CRTDBG")
 408                 SET(CMAKE_C_STANDARD_LIBRARIES "${CMAKE_C_STANDARD_LIBRARIES}" "Dbghelp.lib")
 409         ENDIF()
 410
 411         # /Zi - Create debugging information
 412         # /Od - Disable optimization
 413         # /D_DEBUG - #define _DEBUG
 414         # /MTd - Statically link the multithreaded debug version of the CRT
 415         # /MDd - Dynamically link the multithreaded debug version of the CRT
 416         # /RTC1 - Run time checks
 417         SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Zi /Od /D_DEBUG /RTC1 ${CRT_FLAG_DEBUG}")
 418
 419         # /DNDEBUG - Disables asserts
 420         # /MT - Statically link the multithreaded release version of the CRT
 421         # /MD - Dynamically link the multithreaded release version of the CRT
 422         # /O2 - Optimize for speed
 423         # /Oy - Enable frame pointer omission (FPO) (otherwise CMake will automatically turn it off)
 424         # /GL - Link time code generation (whole program optimization)
 425         # /Gy - Function-level linking
 426         SET(CMAKE_C_FLAGS_RELEASE "/DNDEBUG /O2 /Oy /GL /Gy ${CRT_FLAG_RELEASE}")
 427
 428         # /Oy- - Disable frame pointer omission (FPO)
 429         SET(CMAKE_C_FLAGS_RELWITHDEBINFO "/DNDEBUG /Zi /O2 /Oy- /GL /Gy ${CRT_FLAG_RELEASE}")
 430
 431         # /O1 - Optimize for size
 432         SET(CMAKE_C_FLAGS_MINSIZEREL "/DNDEBUG /O1 /Oy /GL /Gy ${CRT_FLAG_RELEASE}")
 433
 434         # /DYNAMICBASE - Address space load randomization (ASLR)
 435         # /NXCOMPAT - Data execution prevention (DEP)
 436         # /LARGEADDRESSAWARE - >2GB user address space on x86
 437         # /VERSION - Embed version information in PE header
 438         SET(CMAKE_EXE_LINKER_FLAGS "/DYNAMICBASE /NXCOMPAT /LARGEADDRESSAWARE /VERSION:${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}")
 439
 440         # /DEBUG - Create a PDB
 441         # /LTCG - Link time code generation (whole program optimization)
 442         # /OPT:REF /OPT:ICF - Fold out duplicate code at link step
 443         # /INCREMENTAL:NO - Required to use /LTCG
 444         # /DEBUGTYPE:cv,fixup - Additional data embedded in the PDB (requires /INCREMENTAL:NO, so not on for Debug)
 445         SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "/DEBUG")
 446         SET(CMAKE_EXE_LINKER_FLAGS_RELEASE "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
 447         SET(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "/DEBUG /RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO /DEBUGTYPE:cv,fixup")
 448         SET(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
 449
 450         # Same linker settings for DLL as EXE
 451         SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS}")
 452         SET(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")
 453         SET(CMAKE_SHARED_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
 454         SET(CMAKE_SHARED_LINKER_FLAGS_RELWITHDEBINFO "${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}")
 455         SET(CMAKE_SHARED_LINKER_FLAGS_MINSIZEREL "${CMAKE_EXE_LINKER_FLAGS_MINSIZEREL}")
 456
 457         SET(WIN_RC "src/win32/git2.rc")
 458
 459    # Precompiled headers
 460
 461 ELSE ()
 462         SET(CMAKE_C_FLAGS "-D_GNU_SOURCE -Wall -Wextra ${CMAKE_C_FLAGS}")
 463
 464         IF (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
 465                 SET(CMAKE_C_FLAGS "-std=c99 -D_POSIX_C_SOURCE=200112L -D__EXTENSIONS__ -D_POSIX_PTHREAD_SEMANTICS ${CMAKE_C_FLAGS}")
 466         ENDIF()
 467
 468         IF (WIN32 AND NOT CYGWIN)
 469                 SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")
 470         ENDIF ()
 471
 472         IF (MINGW) # MinGW always does PIC and complains if we tell it to
 473                 STRING(REGEX REPLACE "-fPIC" "" CMAKE_SHARED_LIBRARY_C_FLAGS "${CMAKE_SHARED_LIBRARY_C_FLAGS}")
 474                 # MinGW >= 3.14 uses the C99-style stdio functions
 475                 # automatically, but forks like mingw-w64 still want
 476                 # us to define this in order to use them
 477                 ADD_DEFINITIONS(-D__USE_MINGW_ANSI_STDIO=1)
 478
 479         ELSEIF (BUILD_SHARED_LIBS)
 480                 ADD_C_FLAG_IF_SUPPORTED(-fvisibility=hidden)
 481
 482                 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
 483         ENDIF ()
 484
 485         ADD_C_FLAG_IF_SUPPORTED(-Wdocumentation)
 486         ADD_C_FLAG_IF_SUPPORTED(-Wno-missing-field-initializers)
 487         ADD_C_FLAG_IF_SUPPORTED(-Wstrict-aliasing=2)
 488         ADD_C_FLAG_IF_SUPPORTED(-Wstrict-prototypes)
 489         ADD_C_FLAG_IF_SUPPORTED(-Wdeclaration-after-statement)
 490         ADD_C_FLAG_IF_SUPPORTED(-Wno-unused-const-variable)
 491         ADD_C_FLAG_IF_SUPPORTED(-Wno-unused-function)
 492
 493         IF (APPLE) # Apple deprecated OpenSSL
 494                 ADD_C_FLAG_IF_SUPPORTED(-Wno-deprecated-declarations)
 495         ENDIF()
 496
 497         IF (PROFILE)
 498                 SET(CMAKE_C_FLAGS "-pg ${CMAKE_C_FLAGS}")
 499                 SET(CMAKE_EXE_LINKER_FLAGS "-pg ${CMAKE_EXE_LINKER_FLAGS}")
 500         ENDIF ()
 501 ENDIF()
 502
 503 CHECK_FUNCTION_EXISTS(futimens HAVE_FUTIMENS)
 504 IF (HAVE_FUTIMENS)
 505         ADD_DEFINITIONS(-DHAVE_FUTIMENS)
 506 ENDIF ()
 507
 508 CHECK_FUNCTION_EXISTS(qsort_r HAVE_QSORT_R)
 509 IF (HAVE_QSORT_R)
 510         ADD_DEFINITIONS(-DHAVE_QSORT_R)
 511 ENDIF ()
 512
 513 CHECK_FUNCTION_EXISTS(qsort_s HAVE_QSORT_S)
 514 IF (HAVE_QSORT_S)
 515         ADD_DEFINITIONS(-DHAVE_QSORT_S)
 516 ENDIF ()
 517
 518 IF( NOT CMAKE_CONFIGURATION_TYPES )
 519         # Build Debug by default
 520         IF (NOT CMAKE_BUILD_TYPE)
 521                 SET(CMAKE_BUILD_TYPE "Debug" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel." FORCE)
 522         ENDIF ()
 523 ELSE()
 524         # Using a multi-configuration generator eg MSVC or Xcode
 525         # that uses CMAKE_CONFIGURATION_TYPES and not CMAKE_BUILD_TYPE
 526 ENDIF()
 527
 528 IF (SECURITY_FOUND)
 529   ADD_DEFINITIONS(-DGIT_SECURE_TRANSPORT)
 530   INCLUDE_DIRECTORIES(${SECURITY_INCLUDE_DIR})
 531 ENDIF ()
 532
 533 IF (OPENSSL_FOUND)
 534   ADD_DEFINITIONS(-DGIT_OPENSSL)
 535   INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
 536   SET(SSL_LIBRARIES ${OPENSSL_LIBRARIES})
 537 ENDIF()
 538
 539
 540
 541 IF (THREADSAFE)
 542         IF (NOT WIN32)
 543                 FIND_PACKAGE(Threads REQUIRED)
 544         ENDIF()
 545
 546         ADD_DEFINITIONS(-DGIT_THREADS)
 547 ENDIF()
 548
 549 IF (USE_NSEC)
 550         ADD_DEFINITIONS(-DGIT_USE_NSEC)
 551 ENDIF()
 552
 553 IF (HAVE_STRUCT_STAT_ST_MTIM)
 554         ADD_DEFINITIONS(-DGIT_USE_STAT_MTIM)
 555 ELSEIF (HAVE_STRUCT_STAT_ST_MTIMESPEC)
 556         ADD_DEFINITIONS(-DGIT_USE_STAT_MTIMESPEC)
 557 ELSEIF (HAVE_STRUCT_STAT_ST_MTIME_NSEC)
 558         ADD_DEFINITIONS(-DGIT_USE_STAT_MTIME_NSEC)
 559 ENDIF()
 560
 561 ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64)
 562
 563 # Collect sourcefiles
 564 FILE(GLOB SRC_H include/git2.h include/git2/*.h include/git2/sys/*.h)
 565
 566 # On Windows use specific platform sources
 567 IF (WIN32 AND NOT CYGWIN)
 568         ADD_DEFINITIONS(-DWIN32 -D_WIN32_WINNT=0x0501)
 569         FILE(GLOB SRC_OS src/win32/*.c src/win32/*.h)
 570 ELSEIF (AMIGA)
 571         ADD_DEFINITIONS(-DNO_ADDRINFO -DNO_READDIR_R -DNO_MMAP)
 572 ELSE()
 573         IF (VALGRIND)
 574                 ADD_DEFINITIONS(-DNO_MMAP)
 575         ENDIF()
 576         FILE(GLOB SRC_OS src/unix/*.c src/unix/*.h)
 577 ENDIF()
 578 FILE(GLOB SRC_GIT2 src/*.c src/*.h src/transports/*.c src/transports/*.h src/xdiff/*.c src/xdiff/*.h)
 579
 580 # Determine architecture of the machine
 581 IF (CMAKE_SIZEOF_VOID_P EQUAL 8)
 582         ADD_DEFINITIONS(-DGIT_ARCH_64)
 583 ELSEIF (CMAKE_SIZEOF_VOID_P EQUAL 4)
 584         ADD_DEFINITIONS(-DGIT_ARCH_32)
 585 ELSE()
 586         MESSAGE(FATAL_ERROR "Unsupported architecture")
 587 ENDIF()
 588
 589 # Compile and link libgit2
 590 ADD_LIBRARY(git2 ${SRC_H} ${SRC_GIT2} ${SRC_OS} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX} ${SRC_SSH} ${SRC_SHA1} ${WIN_RC})
 591 TARGET_LINK_LIBRARIES(git2 ${SECURITY_DIRS})
 592 TARGET_LINK_LIBRARIES(git2 ${COREFOUNDATION_DIRS})
 593 TARGET_LINK_LIBRARIES(git2 ${SSL_LIBRARIES})
 594 TARGET_LINK_LIBRARIES(git2 ${SSH_LIBRARIES})
 595 TARGET_LINK_LIBRARIES(git2 ${GSSAPI_LIBRARIES})
 596 TARGET_LINK_LIBRARIES(git2 ${ICONV_LIBRARIES})
 597 TARGET_OS_LIBRARIES(git2)
 598
 599 # Workaround for Cmake bug #0011240 (see http://public.kitware.com/Bug/view.php?id=11240)
 600 # Win64+MSVC+static libs = linker error
 601 IF(MSVC AND GIT_ARCH_64 AND NOT BUILD_SHARED_LIBS)
 602   SET_TARGET_PROPERTIES(git2 PROPERTIES STATIC_LIBRARY_FLAGS "/MACHINE:x64")
 603 ENDIF()
 604
 605 IDE_SPLIT_SOURCES(git2)
 606
 607 IF (SONAME)
 608         SET_TARGET_PROPERTIES(git2 PROPERTIES VERSION ${LIBGIT2_VERSION_STRING})
 609         SET_TARGET_PROPERTIES(git2 PROPERTIES SOVERSION ${LIBGIT2_SOVERSION})
 610         IF (LIBGIT2_FILENAME)
 611                 ADD_DEFINITIONS(-DLIBGIT2_FILENAME=\"${LIBGIT2_FILENAME}\")
 612                 SET_TARGET_PROPERTIES(git2 PROPERTIES OUTPUT_NAME ${LIBGIT2_FILENAME})
 613         ELSEIF (DEFINED LIBGIT2_PREFIX)
 614                 SET_TARGET_PROPERTIES(git2 PROPERTIES PREFIX "${LIBGIT2_PREFIX}")
 615         ENDIF()
 616 ENDIF()
 617 STRING(REPLACE ";" " " LIBGIT2_PC_LIBS "${LIBGIT2_PC_LIBS}")
 618 CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/libgit2.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libgit2.pc @ONLY)
 619
 620 IF (MSVC_IDE)
 621    # Precompiled headers
 622    SET_TARGET_PROPERTIES(git2 PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h")
 623    SET_SOURCE_FILES_PROPERTIES(src/win32/precompiled.c COMPILE_FLAGS "/Ycprecompiled.h")
 624 ENDIF ()
 625
 626 # Install
 627 INSTALL(TARGETS git2
 628         RUNTIME DESTINATION ${BIN_INSTALL_DIR}
 629         LIBRARY DESTINATION ${LIB_INSTALL_DIR}
 630         ARCHIVE DESTINATION ${LIB_INSTALL_DIR}
 631 )
 632 INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libgit2.pc DESTINATION ${LIB_INSTALL_DIR}/pkgconfig )
 633 INSTALL(DIRECTORY include/git2 DESTINATION ${INCLUDE_INSTALL_DIR} )
 634 INSTALL(FILES include/git2.h DESTINATION ${INCLUDE_INSTALL_DIR} )
 635
 636 # Tests
 637 IF (BUILD_CLAR)
 638         FIND_PACKAGE(PythonInterp)
 639
 640         IF(NOT PYTHONINTERP_FOUND)
 641           MESSAGE(FATAL_ERROR "Could not find a python interpeter, which is needed to build the tests. "
 642             "Make sure python is available, or pass -DBUILD_CLAR=OFF to skip building the tests")
 643         ENDIF()
 644
 645         SET(CLAR_FIXTURES "${CMAKE_CURRENT_SOURCE_DIR}/tests/resources/")
 646         SET(CLAR_PATH "${CMAKE_CURRENT_SOURCE_DIR}/tests")
 647         SET(CLAR_RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/tests/resources" CACHE PATH "Path to test resources.")
 648         ADD_DEFINITIONS(-DCLAR_FIXTURE_PATH=\"${CLAR_FIXTURES}\")
 649         ADD_DEFINITIONS(-DCLAR_RESOURCES=\"${TEST_RESOURCES}\")
 650         ADD_DEFINITIONS(-DCLAR_TMPDIR=\"libgit2_tests\")
 651
 652         INCLUDE_DIRECTORIES(${CLAR_PATH})
 653         FILE(GLOB_RECURSE SRC_TEST ${CLAR_PATH}/*/*.c ${CLAR_PATH}/*/*.h)
 654         SET(SRC_CLAR "${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")
 655
 656         ADD_CUSTOM_COMMAND(
 657                 OUTPUT ${CLAR_PATH}/clar.suite
 658                 COMMAND ${PYTHON_EXECUTABLE} generate.py -f -xonline -xstress .
 659                 DEPENDS ${SRC_TEST}
 660                 WORKING_DIRECTORY ${CLAR_PATH}
 661         )
 662
 663         SET_SOURCE_FILES_PROPERTIES(
 664                 ${CLAR_PATH}/clar.c
 665                 PROPERTIES OBJECT_DEPENDS ${CLAR_PATH}/clar.suite)
 666
 667         ADD_EXECUTABLE(libgit2_clar ${SRC_H} ${SRC_GIT2} ${SRC_OS} ${SRC_CLAR} ${SRC_TEST} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX} ${SRC_SSH} ${SRC_SHA1})
 668
 669         TARGET_LINK_LIBRARIES(libgit2_clar ${COREFOUNDATION_DIRS})
 670         TARGET_LINK_LIBRARIES(libgit2_clar ${SECURITY_DIRS})
 671         TARGET_LINK_LIBRARIES(libgit2_clar ${SSL_LIBRARIES})
 672         TARGET_LINK_LIBRARIES(libgit2_clar ${SSH_LIBRARIES})
 673         TARGET_LINK_LIBRARIES(libgit2_clar ${GSSAPI_LIBRARIES})
 674         TARGET_LINK_LIBRARIES(libgit2_clar ${ICONV_LIBRARIES})
 675         TARGET_OS_LIBRARIES(libgit2_clar)
 676         IDE_SPLIT_SOURCES(libgit2_clar)
 677
 678         IF (MSVC_IDE)
 679                 # Precompiled headers
 680                 SET_TARGET_PROPERTIES(libgit2_clar PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h")
 681         ENDIF ()
 682
 683         ENABLE_TESTING()
 684         IF (WINHTTP OR OPENSSL_FOUND OR SECURITY_FOUND)
 685                 ADD_TEST(libgit2_clar libgit2_clar -ionline)
 686         ELSE ()
 687                 ADD_TEST(libgit2_clar libgit2_clar -v)
 688         ENDIF ()
 689
 690         # Add a test target which runs the cred callback tests, to be
 691         # called after setting the url and user
 692         ADD_TEST(libgit2_clar-cred_callback libgit2_clar -v -sonline::clone::cred_callback)
 693 ENDIF ()
 694
 695 IF (TAGS)
 696         FIND_PROGRAM(CTAGS ctags)
 697         IF (NOT CTAGS)
 698                 MESSAGE(FATAL_ERROR "Could not find ctags command")
 699         ENDIF ()
 700
 701         FILE(GLOB_RECURSE SRC_ALL *.[ch])
 702
 703         ADD_CUSTOM_COMMAND(
 704                 OUTPUT tags
 705                 COMMAND ${CTAGS} -a ${SRC_ALL}
 706                 DEPENDS ${SRC_ALL}
 707         )
 708         ADD_CUSTOM_TARGET(
 709                 do_tags ALL
 710                 DEPENDS tags
 711         )
 712 ENDIF ()
 713
 714 IF (BUILD_EXAMPLES)
 715         ADD_SUBDIRECTORY(examples)
 716 ENDIF ()