third_party/expat/BUILD.gn

# Copyright 2013 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/chromecast_build.gni")
import("//testing/libfuzzer/fuzzer_test.gni")

# On Linux, we implicitly already depend on expat via fontconfig;
# let's not pull it in twice.
# Chromecast doesn't ship expat as a system library.
# Libfuzzer and AFL need to build library from sources.
if (((is_linux && !is_castos) || is_chromeos) && !use_fuzzing_engine) {
  config("expat_config") {
    libs = [ "expat" ]
  }

  group("expat") {
    public_configs = [ ":expat_config" ]
  }
} else {
  config("expat_public_config") {
    include_dirs = [
      "src/expat/lib",
      "include/expat_config",
    ]
    defines = [ "XML_STATIC" ]
  }
  config("expat_internal_config") {
    cflags = [
      # xmlparse.c has some |if (0 && ...)| statements.
      "-Wno-unreachable-code",

      # Various files have fallthrough annotated with comments instead of
      # attributes, and switching to attributes is difficult.
      "-Wno-implicit-fallthrough",
    ]
  }

  static_library("expat") {
    sources = [
      "src/expat/lib/expat.h",
      "src/expat/lib/xmlparse.c",
      "src/expat/lib/xmlrole.c",
      "src/expat/lib/xmltok.c",
    ]

    public_configs = [ ":expat_public_config" ]
    configs += [ ":expat_internal_config" ]

    defines = [ "_LIB" ]
    if (is_win) {
      # expat expects to define WIN32_LEAN_AND_MEAN itself
      configs -= [ "//build/config/win:lean_and_mean" ]
      defines += [ "COMPILED_FROM_DSP" ]
    } else {
      defines += [ "HAVE_EXPAT_CONFIG_H" ]
    }
  }
}

fuzzer_test("expat_xml_parse_fuzzer") {
  sources = [ "fuzz/expat_xml_parse_fuzzer.cc" ]
  deps = [ ":expat" ]
  dict = "//third_party/libxml/fuzz/xml.dict"
  seed_corpus = "//third_party/libxml/fuzz/seed_corpus"
}