diff options
author | Victor Costan <costan@google.com> | 2020-12-15 19:49:13 +0000 |
---|---|---|
committer | Victor Costan <costan@google.com> | 2020-12-15 19:49:13 +0000 |
commit | 6badb0a2614627b078c78b75017ce9ed9fb49e17 (patch) | |
tree | cc6247443f10fda7dceec3a1e4fb13fc922c84ca | |
parent | 42d1dd7ea3f7a4bf6f91fb6e197715ec89d82e8f (diff) | |
parent | bc53daa7be553889c7a3d6c6c35f0e7b752dbab7 (diff) | |
download | snappy-git-6badb0a2614627b078c78b75017ce9ed9fb49e17.tar.gz |
Merge pull request #114 from cmumford:werror-only-clang
PiperOrigin-RevId: 347660305
-rw-r--r-- | CMakeLists.txt | 742 | ||||
m--------- | third_party/benchmark | 0 | ||||
m--------- | third_party/googletest | 0 |
3 files changed, 372 insertions, 370 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 868b5f0..ebaed22 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -1,370 +1,372 @@ -# Copyright 2019 Google Inc. All Rights Reserved. -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are -# met: -# -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# * Redistributions in binary form must reproduce the above -# copyright notice, this list of conditions and the following disclaimer -# in the documentation and/or other materials provided with the -# distribution. -# * Neither the name of Google Inc. nor the names of its -# contributors may be used to endorse or promote products derived from -# this software without specific prior written permission. -# -# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - -cmake_minimum_required(VERSION 3.1) -project(Snappy VERSION 1.1.8 LANGUAGES C CXX) - -# C++ standard can be overridden when this is used as a sub-project. -if(NOT CMAKE_CXX_STANDARD) - # This project requires C++11. - set(CMAKE_CXX_STANDARD 11) - set(CMAKE_CXX_STANDARD_REQUIRED ON) - set(CMAKE_CXX_EXTENSIONS OFF) -endif(NOT CMAKE_CXX_STANDARD) - -# https://github.com/izenecloud/cmake/blob/master/SetCompilerWarningAll.cmake -if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") - # Use the highest warning level for Visual Studio. - set(CMAKE_CXX_WARNING_LEVEL 4) - if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]") - string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") - else(CMAKE_CXX_FLAGS MATCHES "/W[0-4]") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4") - endif(CMAKE_CXX_FLAGS MATCHES "/W[0-4]") - - # Disable C++ exceptions. - string(REGEX REPLACE "/EH[a-z]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs-c-") - add_definitions(-D_HAS_EXCEPTIONS=0) - - # Disable RTTI. - string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-") -else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") - # Use -Wall for clang and gcc. - if(NOT CMAKE_CXX_FLAGS MATCHES "-Wall") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall") - endif(NOT CMAKE_CXX_FLAGS MATCHES "-Wall") - - # Use -Wextra for clang and gcc. - if(NOT CMAKE_CXX_FLAGS MATCHES "-Wextra") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra") - endif(NOT CMAKE_CXX_FLAGS MATCHES "-Wextra") - - # Use -Werror for clang and gcc. - if(NOT CMAKE_CXX_FLAGS MATCHES "-Werror") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror") - endif(NOT CMAKE_CXX_FLAGS MATCHES "-Werror") - - # Disable C++ exceptions. - string(REGEX REPLACE "-fexceptions" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions") - - # Disable RTTI. - string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti") -endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC") - -# BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make -# it prominent in the GUI. -option(BUILD_SHARED_LIBS "Build shared libraries(DLLs)." OFF) - -option(SNAPPY_BUILD_TESTS "Build Snappy's own tests." ON) - -option(SNAPPY_FUZZING_BUILD "Build Snappy for fuzzing." OFF) - -option(SNAPPY_REQUIRE_AVX "Target processors with AVX support." OFF) - -option(SNAPPY_REQUIRE_AVX2 "Target processors with AVX2 support." OFF) - -option(SNAPPY_INSTALL "Install Snappy's header and library" ON) - -include(TestBigEndian) -test_big_endian(SNAPPY_IS_BIG_ENDIAN) - -include(CheckIncludeFile) -check_include_file("sys/mman.h" HAVE_SYS_MMAN_H) -check_include_file("sys/resource.h" HAVE_SYS_RESOURCE_H) -check_include_file("sys/time.h" HAVE_SYS_TIME_H) -check_include_file("sys/uio.h" HAVE_SYS_UIO_H) -check_include_file("unistd.h" HAVE_UNISTD_H) -check_include_file("windows.h" HAVE_WINDOWS_H) - -include(CheckLibraryExists) -check_library_exists(z zlibVersion "" HAVE_LIBZ) -check_library_exists(lzo2 lzo1x_1_15_compress "" HAVE_LIBLZO2) -check_library_exists(lz4 LZ4_compress_default "" HAVE_LIBLZ4) - -include(CheckCXXCompilerFlag) -CHECK_CXX_COMPILER_FLAG("/arch:AVX" HAVE_VISUAL_STUDIO_ARCH_AVX) -CHECK_CXX_COMPILER_FLAG("/arch:AVX2" HAVE_VISUAL_STUDIO_ARCH_AVX2) -CHECK_CXX_COMPILER_FLAG("-mavx" HAVE_CLANG_MAVX) -CHECK_CXX_COMPILER_FLAG("-mbmi2" HAVE_CLANG_MBMI2) -if(SNAPPY_REQUIRE_AVX2) - if(HAVE_VISUAL_STUDIO_ARCH_AVX2) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX2") - endif(HAVE_VISUAL_STUDIO_ARCH_AVX2) - if(HAVE_CLANG_MAVX) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx") - endif(HAVE_CLANG_MAVX) - if(HAVE_CLANG_MBMI2) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mbmi2") - endif(HAVE_CLANG_MBMI2) -elseif (SNAPPY_REQUIRE_AVX) - if(HAVE_VISUAL_STUDIO_ARCH_AVX) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX") - endif(HAVE_VISUAL_STUDIO_ARCH_AVX) - if(HAVE_CLANG_MAVX) - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx") - endif(HAVE_CLANG_MAVX) -endif(SNAPPY_REQUIRE_AVX2) - -# Used by googletest. -check_cxx_compiler_flag(-Wno-missing-field-initializers - SNAPPY_HAVE_NO_MISSING_FIELD_INITIALIZERS) - -include(CheckCXXSourceCompiles) -check_cxx_source_compiles(" -int main() { - return __builtin_expect(0, 1); -}" HAVE_BUILTIN_EXPECT) - -check_cxx_source_compiles(" -int main() { - return __builtin_ctzll(0); -}" HAVE_BUILTIN_CTZ) - -check_cxx_source_compiles(" -__attribute__((always_inline)) int zero() { return 0; } - -int main() { - return zero(); -}" HAVE_ATTRIBUTE_ALWAYS_INLINE) - -check_cxx_source_compiles(" -#include <tmmintrin.h> - -int main() { - const __m128i *src = 0; - __m128i dest; - const __m128i shuffle_mask = _mm_load_si128(src); - const __m128i pattern = _mm_shuffle_epi8(_mm_loadl_epi64(src), shuffle_mask); - _mm_storeu_si128(&dest, pattern); - return 0; -}" SNAPPY_HAVE_SSSE3) - -check_cxx_source_compiles(" -#include <immintrin.h> -int main() { - return _bzhi_u32(0, 1); -}" SNAPPY_HAVE_BMI2) - -include(CheckSymbolExists) -check_symbol_exists("mmap" "sys/mman.h" HAVE_FUNC_MMAP) -check_symbol_exists("sysconf" "unistd.h" HAVE_FUNC_SYSCONF) - -find_package(Gflags QUIET) -if(GFLAGS_FOUND OR GFLAGS_TARGET) - set(HAVE_GFLAGS 1) -endif(GFLAGS_FOUND OR GFLAGS_TARGET) - -configure_file( - "cmake/config.h.in" - "${PROJECT_BINARY_DIR}/config.h" -) - -# We don't want to define HAVE_ macros in public headers. Instead, we use -# CMake's variable substitution with 0/1 variables, which will be seen by the -# preprocessor as constants. -set(HAVE_SYS_UIO_H_01 ${HAVE_SYS_UIO_H}) -if(NOT HAVE_SYS_UIO_H_01) - set(HAVE_SYS_UIO_H_01 0) -endif(NOT HAVE_SYS_UIO_H_01) - -if (SNAPPY_FUZZING_BUILD) - if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") - message(WARNING "Fuzzing builds are only supported with Clang") - endif (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang") - - if(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=address") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address") - endif(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=address") - - if(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=fuzzer-no-link") - set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer-no-link") - endif(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=fuzzer-no-link") -endif (SNAPPY_FUZZING_BUILD) - -configure_file( - "snappy-stubs-public.h.in" - "${PROJECT_BINARY_DIR}/snappy-stubs-public.h") - -add_library(snappy "") -target_sources(snappy - PRIVATE - "snappy-internal.h" - "snappy-stubs-internal.h" - "snappy-c.cc" - "snappy-sinksource.cc" - "snappy-stubs-internal.cc" - "snappy.cc" - "${PROJECT_BINARY_DIR}/config.h" - - # Only CMake 3.3+ supports PUBLIC sources in targets exported by "install". - $<$<VERSION_GREATER:CMAKE_VERSION,3.2>:PUBLIC> - $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/snappy-c.h> - $<INSTALL_INTERFACE:include/snappy-c.h> - $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/snappy-sinksource.h> - $<INSTALL_INTERFACE:include/snappy-sinksource.h> - $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/snappy.h> - $<INSTALL_INTERFACE:include/snappy.h> - $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/snappy-stubs-public.h> - $<INSTALL_INTERFACE:include/snappy-stubs-public.h> -) -target_include_directories(snappy - PUBLIC - $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}> - $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}> - $<INSTALL_INTERFACE:include> -) -set_target_properties(snappy - PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR}) - -target_compile_definitions(snappy PRIVATE -DHAVE_CONFIG_H) -if(BUILD_SHARED_LIBS) - set_target_properties(snappy PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON) -endif(BUILD_SHARED_LIBS) - -if(SNAPPY_BUILD_TESTS) - enable_testing() - - # Prevent overriding the parent project's compiler/linker settings on Windows. - set(gtest_force_shared_crt ON CACHE BOOL "" FORCE) - set(install_gtest OFF) - set(install_gmock OFF) - set(build_gmock ON) - - # This project is tested using GoogleTest. - add_subdirectory("third_party/googletest") - - # This project uses Google benchmark for benchmarking. - set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE) - set(BENCHMARK_ENABLE_EXCEPTIONS OFF CACHE BOOL "" FORCE) - add_subdirectory("third_party/benchmark") - - # GoogleTest triggers a missing field initializers warning. - if(SNAPPY_HAVE_NO_MISSING_FIELD_INITIALIZERS) - set_property(TARGET gtest - APPEND PROPERTY COMPILE_OPTIONS -Wno-missing-field-initializers) - set_property(TARGET gmock - APPEND PROPERTY COMPILE_OPTIONS -Wno-missing-field-initializers) - endif(SNAPPY_HAVE_NO_MISSING_FIELD_INITIALIZERS) - - add_executable(snappy_unittest "") - target_sources(snappy_unittest - PRIVATE - "snappy_unittest.cc" - "snappy-test.cc" - ) - target_compile_definitions(snappy_unittest PRIVATE -DHAVE_CONFIG_H) - target_link_libraries(snappy_unittest - snappy ${GFLAGS_LIBRARIES} gmock gtest benchmark) - - if(HAVE_LIBZ) - target_link_libraries(snappy_unittest z) - endif(HAVE_LIBZ) - if(HAVE_LIBLZO2) - target_link_libraries(snappy_unittest lzo2) - endif(HAVE_LIBLZO2) - if(HAVE_LIBLZ4) - target_link_libraries(snappy_unittest lz4) - endif(HAVE_LIBLZ4) - - target_include_directories(snappy_unittest - BEFORE PRIVATE - "${PROJECT_SOURCE_DIR}" - "${GFLAGS_INCLUDE_DIRS}" - ) - - add_test( - NAME snappy_unittest - WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}" - COMMAND "${PROJECT_BINARY_DIR}/snappy_unittest") -endif(SNAPPY_BUILD_TESTS) - -if(SNAPPY_FUZZING_BUILD) - add_executable(snappy_compress_fuzzer "") - target_sources(snappy_compress_fuzzer - PRIVATE "snappy_compress_fuzzer.cc" - ) - target_link_libraries(snappy_compress_fuzzer snappy) - set_target_properties(snappy_compress_fuzzer - PROPERTIES LINK_FLAGS "-fsanitize=fuzzer" - ) - - add_executable(snappy_uncompress_fuzzer "") - target_sources(snappy_uncompress_fuzzer - PRIVATE "snappy_uncompress_fuzzer.cc" - ) - target_link_libraries(snappy_uncompress_fuzzer snappy) - set_target_properties(snappy_uncompress_fuzzer - PROPERTIES LINK_FLAGS "-fsanitize=fuzzer" - ) -endif(SNAPPY_FUZZING_BUILD) - -# Must be included before CMAKE_INSTALL_INCLUDEDIR is used. -include(GNUInstallDirs) - -if(SNAPPY_INSTALL) - install(TARGETS snappy - EXPORT SnappyTargets - RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} - LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} - ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} - ) - install( - FILES - "snappy-c.h" - "snappy-sinksource.h" - "snappy.h" - "${PROJECT_BINARY_DIR}/snappy-stubs-public.h" - DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}" - ) - - include(CMakePackageConfigHelpers) - configure_package_config_file( - "cmake/${PROJECT_NAME}Config.cmake.in" - "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}Config.cmake" - INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" - ) - write_basic_package_version_file( - "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}ConfigVersion.cmake" - COMPATIBILITY SameMajorVersion - ) - install( - EXPORT SnappyTargets - NAMESPACE Snappy:: - DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" - ) - install( - FILES - "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}Config.cmake" - "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}ConfigVersion.cmake" - DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}" - ) -endif(SNAPPY_INSTALL) +# Copyright 2019 Google Inc. All Rights Reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cmake_minimum_required(VERSION 3.1)
+project(Snappy VERSION 1.1.8 LANGUAGES C CXX)
+
+# C++ standard can be overridden when this is used as a sub-project.
+if(NOT CMAKE_CXX_STANDARD)
+ # This project requires C++11.
+ set(CMAKE_CXX_STANDARD 11)
+ set(CMAKE_CXX_STANDARD_REQUIRED ON)
+ set(CMAKE_CXX_EXTENSIONS OFF)
+endif(NOT CMAKE_CXX_STANDARD)
+
+# https://github.com/izenecloud/cmake/blob/master/SetCompilerWarningAll.cmake
+if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+ # Use the highest warning level for Visual Studio.
+ set(CMAKE_CXX_WARNING_LEVEL 4)
+ if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
+ string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+ else(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
+ endif(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
+
+ # Disable C++ exceptions.
+ string(REGEX REPLACE "/EH[a-z]+" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHs-c-")
+ add_definitions(-D_HAS_EXCEPTIONS=0)
+
+ # Disable RTTI.
+ string(REGEX REPLACE "/GR" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-")
+else(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+ # Use -Wall for clang and gcc.
+ if(NOT CMAKE_CXX_FLAGS MATCHES "-Wall")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
+ endif(NOT CMAKE_CXX_FLAGS MATCHES "-Wall")
+
+ # Use -Wextra for clang and gcc.
+ if(NOT CMAKE_CXX_FLAGS MATCHES "-Wextra")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wextra")
+ endif(NOT CMAKE_CXX_FLAGS MATCHES "-Wextra")
+
+ # Use -Werror for clang only.
+ if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+ if(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
+ endif(NOT CMAKE_CXX_FLAGS MATCHES "-Werror")
+ endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
+
+ # Disable C++ exceptions.
+ string(REGEX REPLACE "-fexceptions" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions")
+
+ # Disable RTTI.
+ string(REGEX REPLACE "-frtti" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti")
+endif(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
+
+# BUILD_SHARED_LIBS is a standard CMake variable, but we declare it here to make
+# it prominent in the GUI.
+option(BUILD_SHARED_LIBS "Build shared libraries(DLLs)." OFF)
+
+option(SNAPPY_BUILD_TESTS "Build Snappy's own tests." ON)
+
+option(SNAPPY_FUZZING_BUILD "Build Snappy for fuzzing." OFF)
+
+option(SNAPPY_REQUIRE_AVX "Target processors with AVX support." OFF)
+
+option(SNAPPY_REQUIRE_AVX2 "Target processors with AVX2 support." OFF)
+
+option(SNAPPY_INSTALL "Install Snappy's header and library" ON)
+
+include(TestBigEndian)
+test_big_endian(SNAPPY_IS_BIG_ENDIAN)
+
+include(CheckIncludeFile)
+check_include_file("sys/mman.h" HAVE_SYS_MMAN_H)
+check_include_file("sys/resource.h" HAVE_SYS_RESOURCE_H)
+check_include_file("sys/time.h" HAVE_SYS_TIME_H)
+check_include_file("sys/uio.h" HAVE_SYS_UIO_H)
+check_include_file("unistd.h" HAVE_UNISTD_H)
+check_include_file("windows.h" HAVE_WINDOWS_H)
+
+include(CheckLibraryExists)
+check_library_exists(z zlibVersion "" HAVE_LIBZ)
+check_library_exists(lzo2 lzo1x_1_15_compress "" HAVE_LIBLZO2)
+check_library_exists(lz4 LZ4_compress_default "" HAVE_LIBLZ4)
+
+include(CheckCXXCompilerFlag)
+CHECK_CXX_COMPILER_FLAG("/arch:AVX" HAVE_VISUAL_STUDIO_ARCH_AVX)
+CHECK_CXX_COMPILER_FLAG("/arch:AVX2" HAVE_VISUAL_STUDIO_ARCH_AVX2)
+CHECK_CXX_COMPILER_FLAG("-mavx" HAVE_CLANG_MAVX)
+CHECK_CXX_COMPILER_FLAG("-mbmi2" HAVE_CLANG_MBMI2)
+if(SNAPPY_REQUIRE_AVX2)
+ if(HAVE_VISUAL_STUDIO_ARCH_AVX2)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX2")
+ endif(HAVE_VISUAL_STUDIO_ARCH_AVX2)
+ if(HAVE_CLANG_MAVX)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx")
+ endif(HAVE_CLANG_MAVX)
+ if(HAVE_CLANG_MBMI2)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mbmi2")
+ endif(HAVE_CLANG_MBMI2)
+elseif (SNAPPY_REQUIRE_AVX)
+ if(HAVE_VISUAL_STUDIO_ARCH_AVX)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /arch:AVX")
+ endif(HAVE_VISUAL_STUDIO_ARCH_AVX)
+ if(HAVE_CLANG_MAVX)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mavx")
+ endif(HAVE_CLANG_MAVX)
+endif(SNAPPY_REQUIRE_AVX2)
+
+# Used by googletest.
+check_cxx_compiler_flag(-Wno-missing-field-initializers
+ SNAPPY_HAVE_NO_MISSING_FIELD_INITIALIZERS)
+
+include(CheckCXXSourceCompiles)
+check_cxx_source_compiles("
+int main() {
+ return __builtin_expect(0, 1);
+}" HAVE_BUILTIN_EXPECT)
+
+check_cxx_source_compiles("
+int main() {
+ return __builtin_ctzll(0);
+}" HAVE_BUILTIN_CTZ)
+
+check_cxx_source_compiles("
+__attribute__((always_inline)) int zero() { return 0; }
+
+int main() {
+ return zero();
+}" HAVE_ATTRIBUTE_ALWAYS_INLINE)
+
+check_cxx_source_compiles("
+#include <tmmintrin.h>
+
+int main() {
+ const __m128i *src = 0;
+ __m128i dest;
+ const __m128i shuffle_mask = _mm_load_si128(src);
+ const __m128i pattern = _mm_shuffle_epi8(_mm_loadl_epi64(src), shuffle_mask);
+ _mm_storeu_si128(&dest, pattern);
+ return 0;
+}" SNAPPY_HAVE_SSSE3)
+
+check_cxx_source_compiles("
+#include <immintrin.h>
+int main() {
+ return _bzhi_u32(0, 1);
+}" SNAPPY_HAVE_BMI2)
+
+include(CheckSymbolExists)
+check_symbol_exists("mmap" "sys/mman.h" HAVE_FUNC_MMAP)
+check_symbol_exists("sysconf" "unistd.h" HAVE_FUNC_SYSCONF)
+
+find_package(Gflags QUIET)
+if(GFLAGS_FOUND OR GFLAGS_TARGET)
+ set(HAVE_GFLAGS 1)
+endif(GFLAGS_FOUND OR GFLAGS_TARGET)
+
+configure_file(
+ "cmake/config.h.in"
+ "${PROJECT_BINARY_DIR}/config.h"
+)
+
+# We don't want to define HAVE_ macros in public headers. Instead, we use
+# CMake's variable substitution with 0/1 variables, which will be seen by the
+# preprocessor as constants.
+set(HAVE_SYS_UIO_H_01 ${HAVE_SYS_UIO_H})
+if(NOT HAVE_SYS_UIO_H_01)
+ set(HAVE_SYS_UIO_H_01 0)
+endif(NOT HAVE_SYS_UIO_H_01)
+
+if (SNAPPY_FUZZING_BUILD)
+ if (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
+ message(WARNING "Fuzzing builds are only supported with Clang")
+ endif (NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
+
+ if(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=address")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address")
+ endif(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=address")
+
+ if(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=fuzzer-no-link")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer-no-link")
+ endif(NOT CMAKE_CXX_FLAGS MATCHES "-fsanitize=fuzzer-no-link")
+endif (SNAPPY_FUZZING_BUILD)
+
+configure_file(
+ "snappy-stubs-public.h.in"
+ "${PROJECT_BINARY_DIR}/snappy-stubs-public.h")
+
+add_library(snappy "")
+target_sources(snappy
+ PRIVATE
+ "snappy-internal.h"
+ "snappy-stubs-internal.h"
+ "snappy-c.cc"
+ "snappy-sinksource.cc"
+ "snappy-stubs-internal.cc"
+ "snappy.cc"
+ "${PROJECT_BINARY_DIR}/config.h"
+
+ # Only CMake 3.3+ supports PUBLIC sources in targets exported by "install".
+ $<$<VERSION_GREATER:CMAKE_VERSION,3.2>:PUBLIC>
+ $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/snappy-c.h>
+ $<INSTALL_INTERFACE:include/snappy-c.h>
+ $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/snappy-sinksource.h>
+ $<INSTALL_INTERFACE:include/snappy-sinksource.h>
+ $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/snappy.h>
+ $<INSTALL_INTERFACE:include/snappy.h>
+ $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}/snappy-stubs-public.h>
+ $<INSTALL_INTERFACE:include/snappy-stubs-public.h>
+)
+target_include_directories(snappy
+ PUBLIC
+ $<BUILD_INTERFACE:${PROJECT_BINARY_DIR}>
+ $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}>
+ $<INSTALL_INTERFACE:include>
+)
+set_target_properties(snappy
+ PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR})
+
+target_compile_definitions(snappy PRIVATE -DHAVE_CONFIG_H)
+if(BUILD_SHARED_LIBS)
+ set_target_properties(snappy PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
+endif(BUILD_SHARED_LIBS)
+
+if(SNAPPY_BUILD_TESTS)
+ enable_testing()
+
+ # Prevent overriding the parent project's compiler/linker settings on Windows.
+ set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
+ set(install_gtest OFF)
+ set(install_gmock OFF)
+ set(build_gmock ON)
+
+ # This project is tested using GoogleTest.
+ add_subdirectory("third_party/googletest")
+
+ # This project uses Google benchmark for benchmarking.
+ set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "" FORCE)
+ set(BENCHMARK_ENABLE_EXCEPTIONS OFF CACHE BOOL "" FORCE)
+ add_subdirectory("third_party/benchmark")
+
+ # GoogleTest triggers a missing field initializers warning.
+ if(SNAPPY_HAVE_NO_MISSING_FIELD_INITIALIZERS)
+ set_property(TARGET gtest
+ APPEND PROPERTY COMPILE_OPTIONS -Wno-missing-field-initializers)
+ set_property(TARGET gmock
+ APPEND PROPERTY COMPILE_OPTIONS -Wno-missing-field-initializers)
+ endif(SNAPPY_HAVE_NO_MISSING_FIELD_INITIALIZERS)
+
+ add_executable(snappy_unittest "")
+ target_sources(snappy_unittest
+ PRIVATE
+ "snappy_unittest.cc"
+ "snappy-test.cc"
+ )
+ target_compile_definitions(snappy_unittest PRIVATE -DHAVE_CONFIG_H)
+ target_link_libraries(snappy_unittest
+ snappy ${GFLAGS_LIBRARIES} gmock gtest benchmark)
+
+ if(HAVE_LIBZ)
+ target_link_libraries(snappy_unittest z)
+ endif(HAVE_LIBZ)
+ if(HAVE_LIBLZO2)
+ target_link_libraries(snappy_unittest lzo2)
+ endif(HAVE_LIBLZO2)
+ if(HAVE_LIBLZ4)
+ target_link_libraries(snappy_unittest lz4)
+ endif(HAVE_LIBLZ4)
+
+ target_include_directories(snappy_unittest
+ BEFORE PRIVATE
+ "${PROJECT_SOURCE_DIR}"
+ "${GFLAGS_INCLUDE_DIRS}"
+ )
+
+ add_test(
+ NAME snappy_unittest
+ WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
+ COMMAND "${PROJECT_BINARY_DIR}/snappy_unittest")
+endif(SNAPPY_BUILD_TESTS)
+
+if(SNAPPY_FUZZING_BUILD)
+ add_executable(snappy_compress_fuzzer "")
+ target_sources(snappy_compress_fuzzer
+ PRIVATE "snappy_compress_fuzzer.cc"
+ )
+ target_link_libraries(snappy_compress_fuzzer snappy)
+ set_target_properties(snappy_compress_fuzzer
+ PROPERTIES LINK_FLAGS "-fsanitize=fuzzer"
+ )
+
+ add_executable(snappy_uncompress_fuzzer "")
+ target_sources(snappy_uncompress_fuzzer
+ PRIVATE "snappy_uncompress_fuzzer.cc"
+ )
+ target_link_libraries(snappy_uncompress_fuzzer snappy)
+ set_target_properties(snappy_uncompress_fuzzer
+ PROPERTIES LINK_FLAGS "-fsanitize=fuzzer"
+ )
+endif(SNAPPY_FUZZING_BUILD)
+
+# Must be included before CMAKE_INSTALL_INCLUDEDIR is used.
+include(GNUInstallDirs)
+
+if(SNAPPY_INSTALL)
+ install(TARGETS snappy
+ EXPORT SnappyTargets
+ RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+ LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+ )
+ install(
+ FILES
+ "snappy-c.h"
+ "snappy-sinksource.h"
+ "snappy.h"
+ "${PROJECT_BINARY_DIR}/snappy-stubs-public.h"
+ DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
+ )
+
+ include(CMakePackageConfigHelpers)
+ configure_package_config_file(
+ "cmake/${PROJECT_NAME}Config.cmake.in"
+ "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}Config.cmake"
+ INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+ )
+ write_basic_package_version_file(
+ "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}ConfigVersion.cmake"
+ COMPATIBILITY SameMajorVersion
+ )
+ install(
+ EXPORT SnappyTargets
+ NAMESPACE Snappy::
+ DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+ )
+ install(
+ FILES
+ "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}Config.cmake"
+ "${PROJECT_BINARY_DIR}/cmake/${PROJECT_NAME}ConfigVersion.cmake"
+ DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${PROJECT_NAME}"
+ )
+endif(SNAPPY_INSTALL)
diff --git a/third_party/benchmark b/third_party/benchmark deleted file mode 160000 -Subproject bf585a2789e30585b4e3ce6baf11ef2750b5467 diff --git a/third_party/googletest b/third_party/googletest deleted file mode 160000 -Subproject 18f8200e3079b0e54fa00cb7ac55d4c39dcf6da |