kc3-lang/angle/third_party/libpng/BUILD.gn

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• Hash : 73fa1b08
  Author :
  Date : 2024-02-09T14:38:39
  

  Use -fno-define-target-os-macros for libpng
  
  So that https://crrev.com/c/5244629 can roll into ANGLE.
  
  Bug: chromium:41492875, angleproject:8524
  Change-Id: Id047aa7bbc6846380e770d968a20fbd7d69ab64b
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5282082
  Reviewed-by: Roman Lavrov <romanl@google.com>
  Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
  

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• third_party/libpng/BUILD.gn

• # Copyright 2017 The ANGLE Project Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  config("libpng_config") {
    include_dirs = [ "src" ]
    cflags = []
    if (is_clang) {
      cflags += [ "-Wno-tautological-constant-out-of-range-compare" ]
    }
    if (is_apple) {
      # TODO(crbug.com/41492875): this can be removed once libpng is updated to include
      # https://github.com/pnggroup/libpng/commit/893b8113f04d408cc6177c6de19c9889a48faa24
      cflags += [ "-fno-define-target-os-macros" ]
    }
  }
  
  static_library("libpng") {
    sources = [
      "src/png.c",
      "src/pngerror.c",
      "src/pngget.c",
      "src/pngmem.c",
      "src/pngpread.c",
      "src/pngread.c",
      "src/pngrio.c",
      "src/pngrtran.c",
      "src/pngrutil.c",
      "src/pngset.c",
      "src/pngtrans.c",
      "src/pngwio.c",
      "src/pngwrite.c",
      "src/pngwtran.c",
      "src/pngwutil.c",
    ]
  
    # Note: currently pnglibconf.h defines this, but if it gets dropped in a
    # future roll, needs to be added here for the other defines to work.
    # defines = [ "PNG_SET_OPTION_SUPPORTED" ]
    if (current_cpu == "x86" || current_cpu == "x64") {
      sources += [
        "src/intel/filter_sse2_intrinsics.c",
        "src/intel/intel_init.c",
      ]
      defines = [ "PNG_INTEL_SSE_OPT=1" ]
    } else if (target_cpu == "arm" || target_cpu == "arm64") {
      sources += [
        "src/arm/arm_init.c",
        "src/arm/filter_neon_intrinsics.c",
        "src/arm/palette_neon_intrinsics.c",
      ]
      defines = [
        "PNG_ARM_NEON_OPT=2",
        "PNG_ARM_NEON_IMPLEMENTATION=1",
      ]
    }
    if (is_win) {
      cflags = [ "/wd4028" ]
    }
    configs -= [ "//build/config/compiler:chromium_code" ]
    configs += [ "//build/config/compiler:no_chromium_code" ]
    public_configs = [ ":libpng_config" ]
    deps = [ "//third_party/zlib:zlib" ]
  }
  

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