# 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(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 - 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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 - 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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()