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# 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 2.6)
FILE(STRINGS "include/git2.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}")
# Find required dependencies
INCLUDE_DIRECTORIES(src include)
IF (NOT WIN32)
FIND_PACKAGE(ZLIB)
ENDIF()
IF (ZLIB_FOUND)
INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIRS})
LINK_LIBRARIES(${ZLIB_LIBRARIES})
ELSE (ZLIB_FOUND)
INCLUDE_DIRECTORIES(deps/zlib)
ADD_DEFINITIONS(-DNO_VIZ -DSTDC -DNO_GZIP)
FILE(GLOB SRC_ZLIB deps/zlib/*.c)
ENDIF()
# Installation paths
SET(INSTALL_BIN bin CACHE PATH "Where to install binaries to.")
SET(INSTALL_LIB lib CACHE PATH "Where to install libraries to.")
SET(INSTALL_INC include CACHE PATH "Where to install headers to.")
# Build options
OPTION (BUILD_SHARED_LIBS "Build Shared Library (OFF for Static)" ON)
OPTION (BUILD_TESTS "Build Tests" ON)
OPTION (THREADSAFE "Build libgit2 as threadsafe" OFF)
# Platform specific compilation flags
IF (MSVC)
SET(CMAKE_C_FLAGS "/W4 /WX /nologo /Zi")
# TODO: bring back /RTC1 /RTCc
SET(CMAKE_C_FLAGS_DEBUG "/Od /DEBUG /MTd")
SET(CMAKE_C_FLAGS_RELEASE "/MT /O2")
ELSE ()
SET(CMAKE_C_FLAGS "-Wall -Wextra")
IF (NOT MINGW) # MinGW always does PIC and complains if we tell it to
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
ENDIF ()
SET(CMAKE_C_FLAGS_DEBUG "-g -O0")
SET(CMAKE_C_FLAGS_RELEASE "-O2")
ENDIF()
# 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 ()
IF (THREADSAFE)
IF (NOT WIN32)
find_package(Threads REQUIRED)
ENDIF()
ADD_DEFINITIONS(-DGIT_THREADS)
ENDIF()
ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64)
# Collect sourcefiles
FILE(GLOB SRC_H include/git2/*.h)
# On Windows use specific platform sources
IF (WIN32 AND NOT CYGWIN)
ADD_DEFINITIONS(-DWIN32 -D_DEBUG -D_LIB)
FILE(GLOB SRC src/*.c src/win32/*.c)
ELSE()
FILE(GLOB SRC src/*.c src/unix/*.c)
ENDIF ()
# Compile and link libgit2
ADD_LIBRARY(git2 ${SRC} ${SRC_ZLIB})
IF (WIN32)
TARGET_LINK_LIBRARIES(git2 ws2_32)
ENDIF ()
TARGET_LINK_LIBRARIES(git2 ${CMAKE_THREAD_LIBS_INIT})
SET_TARGET_PROPERTIES(git2 PROPERTIES VERSION ${LIBGIT2_VERSION_STRING})
SET_TARGET_PROPERTIES(git2 PROPERTIES SOVERSION ${LIBGIT2_VERSION_MAJOR})
# Install
INSTALL(TARGETS git2
RUNTIME DESTINATION ${INSTALL_BIN}
LIBRARY DESTINATION ${INSTALL_LIB}
ARCHIVE DESTINATION ${INSTALL_LIB}
)
INSTALL(DIRECTORY include/git2 DESTINATION ${INSTALL_INC} )
INSTALL(FILES include/git2.h DESTINATION ${INSTALL_INC} )
# Tests
IF (BUILD_TESTS)
SET(TEST_RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/tests/resources" CACHE PATH "Path to test resources.")
ADD_DEFINITIONS(-DTEST_RESOURCES=\"${TEST_RESOURCES}\")
INCLUDE_DIRECTORIES(tests)
FILE(GLOB SRC_TEST tests/t??-*.c)
ADD_EXECUTABLE(libgit2_test tests/test_main.c tests/test_lib.c tests/test_helpers.c ${SRC} ${SRC_TEST} ${SRC_ZLIB})
TARGET_LINK_LIBRARIES(libgit2_test ${CMAKE_THREAD_LIBS_INIT})
ENABLE_TESTING()
ADD_TEST(libgit2_test libgit2_test)
ENDIF ()
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