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 SET(CMAKE_SYSTEM_NAME "Generic")
  15
  16 PROJECT(libgit2 C)
  17 CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
  18
  19 FILE(STRINGS "include/git2/version.h" GIT2_HEADER REGEX "^#define LIBGIT2_VERSION \"[^\"]*\"$")
  20
  21 STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"([0-9]+).*$" "\\1" LIBGIT2_VERSION_MAJOR "${GIT2_HEADER}")
  22 STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_MINOR  "${GIT2_HEADER}")
  23 STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1" LIBGIT2_VERSION_REV "${GIT2_HEADER}")
  24 SET(LIBGIT2_VERSION_STRING "${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}.${LIBGIT2_VERSION_REV}")
  25
  26 # Uncomment out the line below to use PowerPC SHA1
  27 #SET(SHA1_TYPE "ppc")
  28
  29 # Find required dependencies
  30 INCLUDE_DIRECTORIES(src include deps/http-parser)
  31
  32 FILE(GLOB SRC_HTTP deps/http-parser/*.c)
  33
  34 # Specify sha1 implementation
  35 IF (SHA1_TYPE STREQUAL "ppc")
  36     ADD_DEFINITIONS(-DPPC_SHA1)
  37     FILE(GLOB SRC_SHA1 src/ppc/*.c src/ppc/*.S)
  38 ELSE ()
  39         SET (SRC_SHA1)
  40 ENDIF()
  41
  42 IF (NOT WIN32)
  43         FIND_PACKAGE(ZLIB)
  44 ELSE()
  45         # Windows doesn't understand POSIX regex on its own
  46         INCLUDE_DIRECTORIES(deps/regex)
  47         SET(SRC_REGEX deps/regex/regex.c)
  48 ENDIF()
  49
  50 IF (ZLIB_FOUND)
  51         INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIRS})
  52         LINK_LIBRARIES(${ZLIB_LIBRARIES})
  53 ELSE (ZLIB_FOUND)
  54         INCLUDE_DIRECTORIES(deps/zlib)
  55         ADD_DEFINITIONS(-DNO_VIZ -DSTDC -DNO_GZIP)
  56         FILE(GLOB SRC_ZLIB deps/zlib/*.c)
  57 ENDIF()
  58
  59 # Installation paths
  60 SET(INSTALL_BIN bin CACHE PATH "Where to install binaries to.")
  61 SET(INSTALL_LIB lib CACHE PATH "Where to install libraries to.")
  62 SET(INSTALL_INC include CACHE PATH "Where to install headers to.")
  63
  64 # Build options
  65 OPTION (BUILD_SHARED_LIBS "Build Shared Library (OFF for Static)" ON)
  66 OPTION (THREADSAFE "Build libgit2 as threadsafe" OFF)
  67 OPTION (BUILD_CLAR "Build Tests using the Clar suite" ON)
  68 OPTION (BUILD_EXAMPLES "Build library usage example apps" OFF)
  69 OPTION (TAGS "Generate tags" OFF)
  70 OPTION (PROFILE "Generate profiling information" OFF)
  71
  72 # Platform specific compilation flags
  73 IF (MSVC)
  74         # Not using __stdcall with the CRT causes problems
  75         OPTION (STDCALL "Buildl libgit2 with the __stdcall convention" ON)
  76
  77         SET(CMAKE_C_FLAGS "/W4 /MP /nologo /Zi ${CMAKE_C_FLAGS}")
  78         IF (STDCALL)
  79           SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /Gz")
  80         ENDIF ()
  81         SET(CMAKE_C_FLAGS_DEBUG "/Od /DEBUG /MTd /RTC1 /RTCs /RTCu")
  82         SET(CMAKE_C_FLAGS_RELEASE "/MT /O2")
  83         SET(WIN_RC "src/win32/git2.rc")
  84
  85    # Precompiled headers
  86 ELSE ()
  87         SET(CMAKE_C_FLAGS "-O2 -g -D_GNU_SOURCE -Wall -Wextra -Wno-missing-field-initializers -Wstrict-aliasing=2 -Wstrict-prototypes -Wmissing-prototypes ${CMAKE_C_FLAGS}")
  88         SET(CMAKE_C_FLAGS_DEBUG "-O0 -g")
  89         IF (MINGW) # MinGW always does PIC and complains if we tell it to
  90                 STRING(REGEX REPLACE "-fPIC" "" CMAKE_SHARED_LIBRARY_C_FLAGS "${CMAKE_SHARED_LIBRARY_C_FLAGS}")
  91         ELSE ()
  92                 SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden -fPIC")
  93         ENDIF ()
  94         IF (PROFILE)
  95                 SET(CMAKE_C_FLAGS "-pg ${CMAKE_C_FLAGS}")
  96                 SET(CMAKE_EXE_LINKER_FLAGS "-pg ${CMAKE_EXE_LINKER_FLAGS}")
  97         ENDIF ()
  98 ENDIF()
  99
 100 # Build Debug by default
 101 IF (NOT CMAKE_BUILD_TYPE)
 102         SET(CMAKE_BUILD_TYPE "Debug" CACHE STRING "Choose the type of build, options are: Debug Release RelWithDebInfo MinSizeRel." FORCE)
 103 ENDIF ()
 104
 105 #FIND_PACKAGE(OpenSSL)
 106 #IF (OPENSSL_FOUND)
 107 #  ADD_DEFINITIONS(-DGIT_SSL)
 108 #  INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
 109 #  SET(SSL_LIBRARIES ${OPENSSL_LIBRARIES})
 110 #ENDIF()
 111
 112 IF (THREADSAFE)
 113         IF (NOT WIN32)
 114                 find_package(Threads REQUIRED)
 115         ENDIF()
 116
 117         ADD_DEFINITIONS(-DGIT_THREADS)
 118 ENDIF()
 119
 120 ADD_DEFINITIONS(-D_FILE_OFFSET_BITS=64)
 121
 122 # Collect sourcefiles
 123 FILE(GLOB SRC_H include/git2/*.h)
 124
 125 # On Windows use specific platform sources
 126 IF (WIN32 AND NOT CYGWIN)
 127         ADD_DEFINITIONS(-DWIN32 -D_DEBUG -D_WIN32_WINNT=0x0501)
 128         FILE(GLOB SRC src/*.c src/transports/*.c src/xdiff/*.c src/win32/*.c src/compat/*.c)
 129 ELSEIF (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS|Generic)")
 130         FILE(GLOB SRC src/*.c src/transports/*.c src/xdiff/*.c src/unix/*.c src/compat/*.c)
 131 ELSE()
 132         FILE(GLOB SRC src/*.c src/transports/*.c src/xdiff/*.c src/unix/*.c)
 133 ENDIF ()
 134
 135 # Compile and link libgit2
 136 ADD_LIBRARY(git2 ${SRC} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX} ${SRC_SHA1} ${WIN_RC})
 137
 138 IF (WIN32)
 139         TARGET_LINK_LIBRARIES(git2 ws2_32)
 140 ELSEIF (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
 141         TARGET_LINK_LIBRARIES(git2 socket nsl)
 142 ENDIF ()
 143
 144 TARGET_LINK_LIBRARIES(git2 ${CMAKE_THREAD_LIBS_INIT} ${SSL_LIBRARIES})
 145 SET_TARGET_PROPERTIES(git2 PROPERTIES VERSION ${LIBGIT2_VERSION_STRING})
 146 SET_TARGET_PROPERTIES(git2 PROPERTIES SOVERSION ${LIBGIT2_VERSION_MAJOR})
 147 CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/libgit2.pc.in ${CMAKE_CURRENT_BINARY_DIR}/libgit2.pc @ONLY)
 148
 149 # Install
 150 INSTALL(TARGETS git2
 151         RUNTIME DESTINATION ${INSTALL_BIN}
 152         LIBRARY DESTINATION ${INSTALL_LIB}
 153         ARCHIVE DESTINATION ${INSTALL_LIB}
 154 )
 155 INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/libgit2.pc DESTINATION ${INSTALL_LIB}/pkgconfig )
 156 INSTALL(DIRECTORY include/git2 DESTINATION ${INSTALL_INC} )
 157 INSTALL(FILES include/git2.h DESTINATION ${INSTALL_INC} )
 158
 159 # Tests
 160 IF (BUILD_CLAR)
 161
 162         FIND_PACKAGE(PythonInterp REQUIRED)
 163
 164         SET(CLAR_FIXTURES "${CMAKE_CURRENT_SOURCE_DIR}/tests-clar/resources/")
 165         SET(CLAR_PATH "${CMAKE_CURRENT_SOURCE_DIR}/tests-clar")
 166         SET(CLAR_RESOURCES "${CMAKE_CURRENT_SOURCE_DIR}/tests-clar/resources" CACHE PATH "Path to test resources.")
 167         ADD_DEFINITIONS(-DCLAR_FIXTURE_PATH=\"${CLAR_FIXTURES}\")
 168         ADD_DEFINITIONS(-DCLAR_RESOURCES=\"${TEST_RESOURCES}\")
 169
 170         INCLUDE_DIRECTORIES(${CLAR_PATH})
 171         FILE(GLOB_RECURSE SRC_TEST ${CLAR_PATH}/*/*.c ${CLAR_PATH}/clar_helpers.c ${CLAR_PATH}/testlib.c)
 172
 173         ADD_CUSTOM_COMMAND(
 174                 OUTPUT ${CLAR_PATH}/clar_main.c ${CLAR_PATH}/clar.h
 175                 COMMAND ${PYTHON_EXECUTABLE} clar -vtap .
 176                 DEPENDS ${CLAR_PATH}/clar ${SRC_TEST}
 177                 WORKING_DIRECTORY ${CLAR_PATH}
 178         )
 179         ADD_EXECUTABLE(libgit2_clar ${SRC} ${CLAR_PATH}/clar_main.c ${SRC_TEST} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX})
 180         TARGET_LINK_LIBRARIES(libgit2_clar ${CMAKE_THREAD_LIBS_INIT} ${SSL_LIBRARIES})
 181         IF (WIN32)
 182                 TARGET_LINK_LIBRARIES(libgit2_clar ws2_32)
 183         ELSEIF (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
 184                 TARGET_LINK_LIBRARIES(libgit2_clar socket nsl)
 185         ENDIF ()
 186
 187         ENABLE_TESTING()
 188         ADD_TEST(libgit2_clar libgit2_clar)
 189 ENDIF ()
 190
 191 IF (TAGS)
 192         FIND_PROGRAM(CTAGS ctags)
 193         IF (NOT CTAGS)
 194                 message(FATAL_ERROR "Could not find ctags command")
 195         ENDIF ()
 196
 197         FILE(GLOB_RECURSE SRC_ALL *.[ch])
 198
 199         ADD_CUSTOM_COMMAND(
 200                 OUTPUT tags
 201                 COMMAND ${CTAGS} -a ${SRC_ALL}
 202                 DEPENDS ${SRC_ALL}
 203         )
 204         ADD_CUSTOM_TARGET(
 205                 do_tags ALL
 206                 DEPENDS tags
 207         )
 208 ENDIF ()
 209
 210 IF (BUILD_EXAMPLES)
 211         FILE(GLOB_RECURSE EXAMPLE_SRC examples/network/*.c)
 212         ADD_EXECUTABLE(cgit2 ${EXAMPLE_SRC})
 213         TARGET_LINK_LIBRARIES(cgit2 git2 pthread)
 214
 215         ADD_EXECUTABLE(git-diff examples/diff.c)
 216         TARGET_LINK_LIBRARIES(git-diff git2)
 217
 218         ADD_EXECUTABLE(git-general examples/general.c)
 219         TARGET_LINK_LIBRARIES(git-general git2)
 220
 221         ADD_EXECUTABLE(git-showindex examples/showindex.c)
 222         TARGET_LINK_LIBRARIES(git-showindex git2)
 223 ENDIF ()