kc3-lang/brotli/BUILD

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• Hash : 0cd2e392
  Author :
  Date : 2020-09-08T17:48:31
  

  Fix MSVC linker error (#840)
  
  The -lm linker option is not known to MSVC and setting it triggers
  errors in some build systems:
  
    [6,366 / 6,367] Linking source/exe/envoy-static.exe; 11s remote
    LINK : warning LNK4044: unrecognized option '/lm'; ignored
    LINK : error LNK1218: warning treated as error; no output file generated
    ERROR: C:/source/source/exe/BUILD:22:16: Linking of rule
      '//source/exe:envoy-static' failed (Exit 4044): link.exe failed: error
      executing command
  
  Do not set -lm in case of MSVC.

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• BUILD

• # Description:
  #   Brotli is a generic-purpose lossless compression algorithm.
  
  package(
      default_visibility = ["//visibility:public"],
  )
  
  licenses(["notice"])  # MIT
  
  exports_files(["LICENSE"])
  
  config_setting(
      name = "darwin",
      values = {"cpu": "darwin"},
      visibility = ["//visibility:public"],
  )
  
  config_setting(
      name = "darwin_x86_64",
      values = {"cpu": "darwin_x86_64"},
      visibility = ["//visibility:public"],
  )
  
  config_setting(
      name = "windows",
      values = {"cpu": "x64_windows"},
      visibility = ["//visibility:public"],
  )
  
  config_setting(
      name = "windows_msvc",
      values = {"cpu": "x64_windows_msvc"},
      visibility = ["//visibility:public"],
  )
  
  config_setting(
      name = "windows_msys",
      values = {"cpu": "x64_windows_msys"},
      visibility = ["//visibility:public"],
  )
  
  load(":compiler_config_setting.bzl", "create_msvc_config")
  
  create_msvc_config()
  
  STRICT_C_OPTIONS = select({
      ":msvc": [],
      "//conditions:default": [
          "--pedantic-errors",
          "-Wall",
          "-Wconversion",
          "-Werror",
          "-Wextra",
          "-Wlong-long",
          "-Wmissing-declarations",
          "-Wmissing-prototypes",
          "-Wno-strict-aliasing",
          "-Wshadow",
          "-Wsign-compare",
      ],
  })
  
  filegroup(
      name = "public_headers",
      srcs = glob(["c/include/brotli/*.h"]),
  )
  
  filegroup(
      name = "common_headers",
      srcs = glob(["c/common/*.h"]),
  )
  
  filegroup(
      name = "common_sources",
      srcs = glob(["c/common/*.c"]),
  )
  
  filegroup(
      name = "dec_headers",
      srcs = glob(["c/dec/*.h"]),
  )
  
  filegroup(
      name = "dec_sources",
      srcs = glob(["c/dec/*.c"]),
  )
  
  filegroup(
      name = "enc_headers",
      srcs = glob(["c/enc/*.h"]),
  )
  
  filegroup(
      name = "enc_sources",
      srcs = glob(["c/enc/*.c"]),
  )
  
  cc_library(
      name = "brotli_inc",
      hdrs = [":public_headers"],
      copts = STRICT_C_OPTIONS,
      strip_include_prefix = "c/include",
  )
  
  cc_library(
      name = "brotlicommon",
      srcs = [":common_sources"],
      hdrs = [":common_headers"],
      copts = STRICT_C_OPTIONS,
      deps = [":brotli_inc"],
  )
  
  cc_library(
      name = "brotlidec",
      srcs = [":dec_sources"],
      hdrs = [":dec_headers"],
      copts = STRICT_C_OPTIONS,
      deps = [":brotlicommon"],
  )
  
  cc_library(
      name = "brotlienc",
      srcs = [":enc_sources"],
      hdrs = [":enc_headers"],
      copts = STRICT_C_OPTIONS,
      linkopts = select({
          ":msvc": [],
          "//conditions:default": ["-lm"],
      }),
      deps = [":brotlicommon"],
  )
  
  cc_binary(
      name = "brotli",
      srcs = ["c/tools/brotli.c"],
      copts = STRICT_C_OPTIONS,
      linkstatic = 1,
      deps = [
          ":brotlidec",
          ":brotlienc",
      ],
  )
  
  filegroup(
      name = "dictionary",
      srcs = ["c/common/dictionary.bin"],
  )
  

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