thodg/libgit2/src/CMakeLists.txt
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Hash : 48e6b02b
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Date : 2021-07-19T15:41:44
alloc: add GIT_DEBUG_STRICT_ALLOC Add `GIT_DEBUG_STRICT_ALLOC` to help identify problematic callers of allocation code that pass a `0` size to the allocators and then expect a non-`NULL` return. When given a 0-size allocation, `malloc` _may_ return either a `NULL` _or_ a pointer that is not writeable. Most systems return a non-`NULL` pointer; AIX is an outlier. We should be able to cope with this AIXy behavior, so this adds an option to emulate it.
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src/CMakeLists.txt
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add_library(git2internal OBJECT) set_target_properties(git2internal PROPERTIES C_STANDARD 90) IF(DEBUG_POOL) SET(GIT_DEBUG_POOL 1) ENDIF() ADD_FEATURE_INFO(debugpool GIT_DEBUG_POOL "debug pool allocator") IF(DEBUG_STRICT_ALLOC) SET(GIT_DEBUG_STRICT_ALLOC 1) ENDIF() ADD_FEATURE_INFO(debugalloc GIT_DEBUG_STRICT_ALLOC "debug strict allocators") INCLUDE(PkgBuildConfig) INCLUDE(SanitizeBool) # This variable will contain the libraries we need to put into # libgit2.pc's Requires.private. That is, what we're linking to or # what someone who's statically linking us needs to link to. SET(LIBGIT2_PC_REQUIRES "") # This will be set later if we use the system's http-parser library or # use iconv (OSX) and will be written to the Libs.private field in the # pc file. SET(LIBGIT2_PC_LIBS "") SET(LIBGIT2_INCLUDES "${CMAKE_CURRENT_BINARY_DIR}" "${libgit2_SOURCE_DIR}/src" "${libgit2_SOURCE_DIR}/include") SET(LIBGIT2_SYSTEM_INCLUDES "") SET(LIBGIT2_LIBS "") enable_warnings(missing-declarations) # Enable tracing IF(ENABLE_TRACE) SET(GIT_TRACE 1) ENDIF() ADD_FEATURE_INFO(tracing GIT_TRACE "tracing support") CHECK_FUNCTION_EXISTS(futimens HAVE_FUTIMENS) IF (HAVE_FUTIMENS) SET(GIT_USE_FUTIMENS 1) ENDIF () CHECK_PROTOTYPE_DEFINITION(qsort_r "void qsort_r(void *base, size_t nmemb, size_t size, void *thunk, int (*compar)(void *, const void *, const void *))" "" "stdlib.h" HAVE_QSORT_R_BSD) IF (HAVE_QSORT_R_BSD) target_compile_definitions(git2internal PRIVATE HAVE_QSORT_R_BSD) ENDIF() CHECK_PROTOTYPE_DEFINITION(qsort_r "void qsort_r(void *base, size_t nmemb, size_t size, int (*compar)(const void *, const void *, void *), void *arg)" "" "stdlib.h" HAVE_QSORT_R_GNU) IF (HAVE_QSORT_R_GNU) target_compile_definitions(git2internal PRIVATE HAVE_QSORT_R_GNU) ENDIF() CHECK_FUNCTION_EXISTS(qsort_s HAVE_QSORT_S) IF (HAVE_QSORT_S) target_compile_definitions(git2internal PRIVATE HAVE_QSORT_S) ENDIF () # Find required dependencies IF(WIN32) LIST(APPEND LIBGIT2_LIBS ws2_32) ELSEIF(CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)") LIST(APPEND LIBGIT2_LIBS socket nsl) LIST(APPEND LIBGIT2_PC_LIBS "-lsocket" "-lnsl") ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Haiku") LIST(APPEND LIBGIT2_LIBS network) LIST(APPEND LIBGIT2_PC_LIBS "-lnetwork") ENDIF() CHECK_LIBRARY_EXISTS(rt clock_gettime "time.h" NEED_LIBRT) IF(NEED_LIBRT) LIST(APPEND LIBGIT2_LIBS rt) LIST(APPEND LIBGIT2_PC_LIBS "-lrt") ENDIF() IF(THREADSAFE) LIST(APPEND LIBGIT2_LIBS ${CMAKE_THREAD_LIBS_INIT}) LIST(APPEND LIBGIT2_PC_LIBS ${CMAKE_THREAD_LIBS_INIT}) ENDIF() ADD_FEATURE_INFO(threadsafe THREADSAFE "threadsafe support") if(WIN32 AND EMBED_SSH_PATH) file(GLOB SRC_SSH "${EMBED_SSH_PATH}/src/*.c") list(SORT SRC_SSH) target_sources(git2internal PRIVATE ${SRC_SSH}) list(APPEND LIBGIT2_SYSTEM_INCLUDES "${EMBED_SSH_PATH}/include") file(WRITE "${EMBED_SSH_PATH}/src/libssh2_config.h" "#define HAVE_WINCNG\n#define LIBSSH2_WINCNG\n#include \"../win32/libssh2_config.h\"") set(GIT_SSH 1) endif() IF (WIN32 AND WINHTTP) SET(GIT_WINHTTP 1) # Since MinGW does not come with headers or an import library for winhttp, # we have to include a private header and generate our own import library IF (MINGW) ADD_SUBDIRECTORY("${libgit2_SOURCE_DIR}/deps/winhttp" "${libgit2_BINARY_DIR}/deps/winhttp") LIST(APPEND LIBGIT2_LIBS winhttp) LIST(APPEND LIBGIT2_INCLUDES "${libgit2_SOURCE_DIR}/deps/winhttp") ELSE() LIST(APPEND LIBGIT2_LIBS "winhttp") LIST(APPEND LIBGIT2_PC_LIBS "-lwinhttp") ENDIF () LIST(APPEND LIBGIT2_LIBS "rpcrt4" "crypt32" "ole32") LIST(APPEND LIBGIT2_PC_LIBS "-lrpcrt4" "-lcrypt32" "-lole32") ENDIF() include(SelectHTTPSBackend) include(SelectHashes) target_sources(git2internal PRIVATE ${SRC_SHA1}) # Specify regular expression implementation FIND_PACKAGE(PCRE) IF(REGEX_BACKEND STREQUAL "") CHECK_SYMBOL_EXISTS(regcomp_l "regex.h;xlocale.h" HAVE_REGCOMP_L) IF(HAVE_REGCOMP_L) SET(REGEX_BACKEND "regcomp_l") ELSEIF(PCRE_FOUND) SET(REGEX_BACKEND "pcre") ELSE() SET(REGEX_BACKEND "builtin") ENDIF() ENDIF() IF(REGEX_BACKEND STREQUAL "regcomp_l") ADD_FEATURE_INFO(regex ON "using system regcomp_l") SET(GIT_REGEX_REGCOMP_L 1) ELSEIF(REGEX_BACKEND STREQUAL "pcre2") FIND_PACKAGE(PCRE2) IF(NOT PCRE2_FOUND) MESSAGE(FATAL_ERROR "PCRE2 support was requested but not found") ENDIF() ADD_FEATURE_INFO(regex ON "using system PCRE2") SET(GIT_REGEX_PCRE2 1) LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${PCRE2_INCLUDE_DIRS}) LIST(APPEND LIBGIT2_LIBS ${PCRE2_LIBRARIES}) LIST(APPEND LIBGIT2_PC_REQUIRES "libpcre2-8") ELSEIF(REGEX_BACKEND STREQUAL "pcre") ADD_FEATURE_INFO(regex ON "using system PCRE") SET(GIT_REGEX_PCRE 1) LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${PCRE_INCLUDE_DIRS}) LIST(APPEND LIBGIT2_LIBS ${PCRE_LIBRARIES}) LIST(APPEND LIBGIT2_PC_REQUIRES "libpcre") ELSEIF(REGEX_BACKEND STREQUAL "regcomp") ADD_FEATURE_INFO(regex ON "using system regcomp") SET(GIT_REGEX_REGCOMP 1) ELSEIF(REGEX_BACKEND STREQUAL "builtin") ADD_FEATURE_INFO(regex ON "using bundled PCRE") SET(GIT_REGEX_BUILTIN 1) ADD_SUBDIRECTORY("${libgit2_SOURCE_DIR}/deps/pcre" "${libgit2_BINARY_DIR}/deps/pcre") LIST(APPEND LIBGIT2_INCLUDES "${libgit2_SOURCE_DIR}/deps/pcre") LIST(APPEND LIBGIT2_OBJECTS $<TARGET_OBJECTS:pcre>) ELSE() MESSAGE(FATAL_ERROR "The REGEX_BACKEND option provided is not supported") ENDIF() # Optional external dependency: http-parser IF(USE_HTTP_PARSER STREQUAL "system") FIND_PACKAGE(HTTP_Parser) IF (HTTP_PARSER_FOUND AND HTTP_PARSER_VERSION_MAJOR EQUAL 2) LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${HTTP_PARSER_INCLUDE_DIRS}) LIST(APPEND LIBGIT2_LIBS ${HTTP_PARSER_LIBRARIES}) LIST(APPEND LIBGIT2_PC_LIBS "-lhttp_parser") ADD_FEATURE_INFO(http-parser ON "http-parser support (system)") ELSE() MESSAGE(FATAL_ERROR "http-parser support was requested but not found") ENDIF() ELSE() MESSAGE(STATUS "http-parser version 2 was not found or disabled; using bundled 3rd-party sources.") ADD_SUBDIRECTORY("${libgit2_SOURCE_DIR}/deps/http-parser" "${libgit2_BINARY_DIR}/deps/http-parser") LIST(APPEND LIBGIT2_INCLUDES "${libgit2_SOURCE_DIR}/deps/http-parser") LIST(APPEND LIBGIT2_OBJECTS "$<TARGET_OBJECTS:http-parser>") ADD_FEATURE_INFO(http-parser ON "http-parser support (bundled)") ENDIF() # Optional external dependency: zlib SanitizeBool(USE_BUNDLED_ZLIB) IF(USE_BUNDLED_ZLIB STREQUAL ON) SET(USE_BUNDLED_ZLIB "Bundled") ENDIF() IF(USE_BUNDLED_ZLIB STREQUAL "OFF") FIND_PACKAGE(ZLIB) IF(ZLIB_FOUND) LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${ZLIB_INCLUDE_DIRS}) LIST(APPEND LIBGIT2_LIBS ${ZLIB_LIBRARIES}) IF(APPLE OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD") LIST(APPEND LIBGIT2_PC_LIBS "-lz") ELSE() LIST(APPEND LIBGIT2_PC_REQUIRES "zlib") ENDIF() ADD_FEATURE_INFO(zlib ON "using system zlib") ELSE() MESSAGE(STATUS "zlib was not found; using bundled 3rd-party sources." ) ENDIF() ENDIF() IF(USE_BUNDLED_ZLIB STREQUAL "Chromium") ADD_SUBDIRECTORY("${libgit2_SOURCE_DIR}/deps/chromium-zlib" "${libgit2_BINARY_DIR}/deps/chromium-zlib") LIST(APPEND LIBGIT2_INCLUDES "${libgit2_SOURCE_DIR}/deps/chromium-zlib") LIST(APPEND LIBGIT2_OBJECTS $<TARGET_OBJECTS:chromium_zlib>) ADD_FEATURE_INFO(zlib ON "using (Chromium) bundled zlib") ELSEIF(USE_BUNDLED_ZLIB OR NOT ZLIB_FOUND) ADD_SUBDIRECTORY("${libgit2_SOURCE_DIR}/deps/zlib" "${libgit2_BINARY_DIR}/deps/zlib") LIST(APPEND LIBGIT2_INCLUDES "${libgit2_SOURCE_DIR}/deps/zlib") LIST(APPEND LIBGIT2_OBJECTS $<TARGET_OBJECTS:zlib>) ADD_FEATURE_INFO(zlib ON "using bundled zlib") ENDIF() # Optional external dependency: libssh2 IF (USE_SSH) FIND_PKGLIBRARIES(LIBSSH2 libssh2) ENDIF() IF (LIBSSH2_FOUND) SET(GIT_SSH 1) LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${LIBSSH2_INCLUDE_DIRS}) LIST(APPEND LIBGIT2_LIBS ${LIBSSH2_LIBRARIES}) LIST(APPEND LIBGIT2_PC_LIBS ${LIBSSH2_LDFLAGS}) CHECK_LIBRARY_EXISTS("${LIBSSH2_LIBRARIES}" libssh2_userauth_publickey_frommemory "${LIBSSH2_LIBRARY_DIRS}" HAVE_LIBSSH2_MEMORY_CREDENTIALS) IF (HAVE_LIBSSH2_MEMORY_CREDENTIALS) SET(GIT_SSH_MEMORY_CREDENTIALS 1) ENDIF() ELSE() MESSAGE(STATUS "LIBSSH2 not found. Set CMAKE_PREFIX_PATH if it is installed outside of the default search path.") ENDIF() ADD_FEATURE_INFO(SSH GIT_SSH "SSH transport support") # Optional external dependency: ntlmclient IF (USE_NTLMCLIENT) SET(GIT_NTLM 1) ADD_SUBDIRECTORY("${libgit2_SOURCE_DIR}/deps/ntlmclient" "${libgit2_BINARY_DIR}/deps/ntlmclient") LIST(APPEND LIBGIT2_INCLUDES "${libgit2_SOURCE_DIR}/deps/ntlmclient") LIST(APPEND LIBGIT2_OBJECTS "$<TARGET_OBJECTS:ntlmclient>") ENDIF() ADD_FEATURE_INFO(ntlmclient GIT_NTLM "NTLM authentication support for Unix") # Optional external dependency: GSSAPI INCLUDE(SelectGSSAPI) # Optional external dependency: iconv IF (USE_ICONV) FIND_PACKAGE(Iconv) ENDIF() IF (ICONV_FOUND) SET(GIT_USE_ICONV 1) LIST(APPEND LIBGIT2_SYSTEM_INCLUDES ${ICONV_INCLUDE_DIR}) LIST(APPEND LIBGIT2_LIBS ${ICONV_LIBRARIES}) LIST(APPEND LIBGIT2_PC_LIBS ${ICONV_LIBRARIES}) ENDIF() ADD_FEATURE_INFO(iconv GIT_USE_ICONV "iconv encoding conversion support") IF (THREADSAFE) IF (NOT WIN32) FIND_PACKAGE(Threads REQUIRED) ENDIF() SET(GIT_THREADS 1) ENDIF() IF (USE_NSEC) SET(GIT_USE_NSEC 1) ENDIF() IF (HAVE_STRUCT_STAT_ST_MTIM) SET(GIT_USE_STAT_MTIM 1) ELSEIF (HAVE_STRUCT_STAT_ST_MTIMESPEC) SET(GIT_USE_STAT_MTIMESPEC 1) ELSEIF (HAVE_STRUCT_STAT_ST_MTIME_NSEC) SET(GIT_USE_STAT_MTIME_NSEC 1) ENDIF() target_compile_definitions(git2internal PRIVATE _FILE_OFFSET_BITS=64) # Collect sourcefiles file(GLOB SRC_H "${libgit2_SOURCE_DIR}/include/git2.h" "${libgit2_SOURCE_DIR}/include/git2/*.h" "${libgit2_SOURCE_DIR}/include/git2/sys/*.h") list(SORT SRC_H) target_sources(git2internal PRIVATE ${SRC_H}) # On Windows use specific platform sources if(WIN32 AND NOT CYGWIN) SET(WIN_RC "win32/git2.rc") file(GLOB SRC_OS win32/*.c win32/*.h) list(SORT SRC_OS) target_sources(git2internal PRIVATE ${SRC_OS}) elseif(AMIGA) target_compile_definitions(git2internal PRIVATE NO_ADDRINFO NO_READDIR_R NO_MMAP) else() file(GLOB SRC_OS unix/*.c unix/*.h) list(SORT SRC_OS) target_sources(git2internal PRIVATE ${SRC_OS}) endif() IF (USE_LEAK_CHECKER STREQUAL "valgrind") target_compile_definitions(git2internal PRIVATE VALGRIND) ENDIF() file(GLOB SRC_GIT2 *.c *.h allocators/*.c allocators/*.h streams/*.c streams/*.h transports/*.c transports/*.h xdiff/*.c xdiff/*.h) list(SORT SRC_GIT2) target_sources(git2internal PRIVATE ${SRC_GIT2}) IF(APPLE) # The old Secure Transport API has been deprecated in macOS 10.15. SET_SOURCE_FILES_PROPERTIES(streams/stransport.c PROPERTIES COMPILE_FLAGS -Wno-deprecated) ENDIF() # the xdiff dependency is not (yet) warning-free, disable warnings as # errors for the xdiff sources until we've sorted them out IF(MSVC) SET_SOURCE_FILES_PROPERTIES(xdiff/xdiffi.c PROPERTIES COMPILE_FLAGS -WX-) SET_SOURCE_FILES_PROPERTIES(xdiff/xutils.c PROPERTIES COMPILE_FLAGS -WX-) ENDIF() # Determine architecture of the machine IF (CMAKE_SIZEOF_VOID_P EQUAL 8) SET(GIT_ARCH_64 1) ELSEIF (CMAKE_SIZEOF_VOID_P EQUAL 4) SET(GIT_ARCH_32 1) ELSEIF (CMAKE_SIZEOF_VOID_P) MESSAGE(FATAL_ERROR "Unsupported architecture (pointer size is ${CMAKE_SIZEOF_VOID_P} bytes)") ELSE() MESSAGE(FATAL_ERROR "Unsupported architecture (CMAKE_SIZEOF_VOID_P is unset)") ENDIF() CONFIGURE_FILE(features.h.in git2/sys/features.h) IDE_SPLIT_SOURCES(git2internal) LIST(APPEND LIBGIT2_OBJECTS $<TARGET_OBJECTS:git2internal>) TARGET_INCLUDE_DIRECTORIES(git2internal PRIVATE ${LIBGIT2_INCLUDES} PUBLIC ${libgit2_SOURCE_DIR}/include) TARGET_INCLUDE_DIRECTORIES(git2internal SYSTEM PRIVATE ${LIBGIT2_SYSTEM_INCLUDES}) SET(LIBGIT2_OBJECTS ${LIBGIT2_OBJECTS} PARENT_SCOPE) SET(LIBGIT2_INCLUDES ${LIBGIT2_INCLUDES} PARENT_SCOPE) SET(LIBGIT2_SYSTEM_INCLUDES ${LIBGIT2_SYSTEM_INCLUDES} PARENT_SCOPE) SET(LIBGIT2_LIBS ${LIBGIT2_LIBS} PARENT_SCOPE) IF(XCODE_VERSION) # This is required for Xcode to actually link the libgit2 library # when using only object libraries. FILE(WRITE ${CMAKE_CURRENT_BINARY_DIR}/dummy.c "") LIST(APPEND LIBGIT2_OBJECTS ${CMAKE_CURRENT_BINARY_DIR}/dummy.c) ENDIF() # Compile and link libgit2 ADD_LIBRARY(git2 ${WIN_RC} ${LIBGIT2_OBJECTS}) TARGET_LINK_LIBRARIES(git2 ${LIBGIT2_LIBS}) SET_TARGET_PROPERTIES(git2 PROPERTIES C_STANDARD 90) SET_TARGET_PROPERTIES(git2 PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${libgit2_BINARY_DIR}) SET_TARGET_PROPERTIES(git2 PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${libgit2_BINARY_DIR}) SET_TARGET_PROPERTIES(git2 PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${libgit2_BINARY_DIR}) # Workaround for Cmake bug #0011240 (see http://public.kitware.com/Bug/view.php?id=11240) # Win64+MSVC+static libs = linker error IF(MSVC AND GIT_ARCH_64 AND NOT BUILD_SHARED_LIBS) SET_TARGET_PROPERTIES(git2 PROPERTIES STATIC_LIBRARY_FLAGS "/MACHINE:x64") ENDIF() IDE_SPLIT_SOURCES(git2) if(SONAME) set_target_properties(git2 PROPERTIES VERSION ${libgit2_VERSION}) set_target_properties(git2 PROPERTIES SOVERSION "${libgit2_VERSION_MAJOR}.${libgit2_VERSION_MINOR}") if(LIBGIT2_FILENAME) target_compile_definitions(git2internal PRIVATE LIBGIT2_FILENAME=\"${LIBGIT2_FILENAME}\") set_target_properties(git2 PROPERTIES OUTPUT_NAME ${LIBGIT2_FILENAME}) elseif(DEFINED LIBGIT2_PREFIX) set_target_properties(git2 PROPERTIES PREFIX "${LIBGIT2_PREFIX}") endif() endif() PKG_BUILD_CONFIG(NAME libgit2 VERSION ${libgit2_VERSION} DESCRIPTION "The git library, take 2" LIBS_SELF git2 PRIVATE_LIBS ${LIBGIT2_PC_LIBS} REQUIRES ${LIBGIT2_PC_REQUIRES} ) IF (MSVC_IDE) # Precompiled headers SET_TARGET_PROPERTIES(git2 PROPERTIES COMPILE_FLAGS "/Yuprecompiled.h /FIprecompiled.h") SET_SOURCE_FILES_PROPERTIES(win32/precompiled.c COMPILE_FLAGS "/Ycprecompiled.h") ENDIF () # Install INSTALL(TARGETS git2 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} ) INSTALL(DIRECTORY ${libgit2_SOURCE_DIR}/include/git2 DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}) INSTALL(FILES ${libgit2_SOURCE_DIR}/include/git2.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})