thodg/libgit2/deps/chromium-zlib/CMakeLists.txt

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• Hash : 52693ab4
  Author :
  Date : 2021-09-26T23:11:13
  

  cmake: stylistic refactoring Ensure that we always use lowercase function names, and that we do not have spaces preceding open parentheses, for consistency.

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• deps/chromium-zlib/CMakeLists.txt

• # CMake build script for the bundled Chromium zlib implementation. So far, it
  # is only supported for x86_64 processors with CLMUL, SSE3, SSE4.2.
  #
  # TODO: The Chromium build file (in deps/chromium-zlib/zlib/BUILD.gn) supports
  # more platforms (like ARM with NEON), more can be enabled as needed.
  
  cmake_minimum_required(VERSION 3.11)
  
  include(FetchContent)
  include(FindGit)
  
  # Ensure that the git binary is present to download the sources.
  find_package(Git)
  if(NOT Git_FOUND)
  	message(FATAL_ERROR "git is required to download the Chromium zlib sources")
  endif()
  
  fetchcontent_populate(chromium_zlib_src
  	GIT_REPOSITORY https://chromium.googlesource.com/chromium/src/third_party/zlib.git
  	GIT_TAG 2c183c9f93a328bfb3121284da13cf89a0f7e64a
  	QUIET
  )
  
  # The Chromium build globally disables some warnings.
  disable_warnings(implicit-fallthrough)
  disable_warnings(unused-function)
  disable_warnings(unused-parameter)
  disable_warnings(sign-compare)
  disable_warnings(declaration-after-statement)
  disable_warnings(missing-declarations)
  
  # -O3 is also set by the Chromium configuration and has been deemed safe enough
  # for them.
  set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O3 -g -DNDEBUG")
  set(CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG")
  
  # Common definitions.
  add_definitions(
  	-DSTDC
  	-DNO_GZIP
  	-DZLIB_IMPLEMENTATION
  )
  list(APPEND SRC_ZLIB
  	"${chromium_zlib_src_SOURCE_DIR}/adler32.c"
  	"${chromium_zlib_src_SOURCE_DIR}/chromeconf.h"
  	"${chromium_zlib_src_SOURCE_DIR}/compress.c"
  	"${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/insert_string.h"
  	"${chromium_zlib_src_SOURCE_DIR}/cpu_features.c"
  	"${chromium_zlib_src_SOURCE_DIR}/cpu_features.h"
  	"${chromium_zlib_src_SOURCE_DIR}/crc32.c"
  	"${chromium_zlib_src_SOURCE_DIR}/crc32.h"
  	"${chromium_zlib_src_SOURCE_DIR}/deflate.c"
  	"${chromium_zlib_src_SOURCE_DIR}/deflate.h"
  	"${chromium_zlib_src_SOURCE_DIR}/gzclose.c"
  	"${chromium_zlib_src_SOURCE_DIR}/gzguts.h"
  	"${chromium_zlib_src_SOURCE_DIR}/gzlib.c"
  	"${chromium_zlib_src_SOURCE_DIR}/gzread.c"
  	"${chromium_zlib_src_SOURCE_DIR}/gzwrite.c"
  	"${chromium_zlib_src_SOURCE_DIR}/infback.c"
  	"${chromium_zlib_src_SOURCE_DIR}/inffast.c"
  	"${chromium_zlib_src_SOURCE_DIR}/inffast.h"
  	"${chromium_zlib_src_SOURCE_DIR}/inffixed.h"
  	"${chromium_zlib_src_SOURCE_DIR}/inflate.h"
  	"${chromium_zlib_src_SOURCE_DIR}/inftrees.c"
  	"${chromium_zlib_src_SOURCE_DIR}/inftrees.h"
  	"${chromium_zlib_src_SOURCE_DIR}/trees.c"
  	"${chromium_zlib_src_SOURCE_DIR}/trees.h"
  	"${chromium_zlib_src_SOURCE_DIR}/uncompr.c"
  	"${chromium_zlib_src_SOURCE_DIR}/zconf.h"
  	"${chromium_zlib_src_SOURCE_DIR}/zlib.h"
  	"${chromium_zlib_src_SOURCE_DIR}/zutil.c"
  	"${chromium_zlib_src_SOURCE_DIR}/zutil.h"
  )
  
  # x86_64-specific optimizations
  string(APPEND CMAKE_C_FLAGS " -mssse3 -msse4.2 -mpclmul")
  add_definitions(
    -DCHROMIUM_ZLIB_NO_CHROMECONF
  	-DX86_NOT_WINDOWS
  	-DADLER32_SIMD_SSSE3
  	-DCRC32_SIMD_SSE42_PCLMUL
  	-DDEFLATE_FILL_WINDOW_SSE2
  	-DINFLATE_CHUNK_READ_64LE
  	-DINFLATE_CHUNK_SIMD_SSE2
  )
  list(APPEND SRC_ZLIB
  	"${chromium_zlib_src_SOURCE_DIR}/adler32_simd.c"
  	"${chromium_zlib_src_SOURCE_DIR}/adler32_simd.h"
  	"${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/chunkcopy.h"
  	"${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/inffast_chunk.c"
  	"${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/inffast_chunk.h"
  	"${chromium_zlib_src_SOURCE_DIR}/contrib/optimizations/inflate.c"
  	"${chromium_zlib_src_SOURCE_DIR}/crc32_simd.c"
  	"${chromium_zlib_src_SOURCE_DIR}/crc32_simd.h"
  	"${chromium_zlib_src_SOURCE_DIR}/crc_folding.c"
  	"${chromium_zlib_src_SOURCE_DIR}/fill_window_sse.c"
  )
  
  list(SORT SRC_ZLIB)
  include_directories("${chromium_zlib_src_SOURCE_DIR}")
  add_library(chromium_zlib OBJECT ${SRC_ZLIB})
  

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