--- third_party/libxslt/BUILD.gn.orig	2019-09-16 10:03:44 UTC
+++ third_party/libxslt/BUILD.gn
@@ -1,102 +1,13 @@
-# Copyright 2014 The Chromium Authors. All rights reserved.
+# Copyright 2016 The Chromium 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("libxslt_config") {
-  defines = [ "LIBXSLT_STATIC" ]
-  include_dirs = [ "src" ]
-}
+import("//build/config/linux/pkg_config.gni")
 
-config("libxslt_warnings") {
-  if (is_clang) {
-    cflags = [
-      # libxslt stores a char[3] in a `const unsigned char*`.
-      "-Wno-pointer-sign",
-
-      # xsltDefaultRegion and xsltCalibrateTimestamps are only
-      # used with certain preprocessor defines set.
-      "-Wno-unused-function",
-    ]
-  }
+pkg_config("system_libxslt") {
+  packages = [ "libxslt" ]
 }
 
-static_library("libxslt") {
-  sources = [
-    "linux/config.h",
-    "mac/config.h",
-    "src/libxslt/attributes.c",
-    "src/libxslt/attributes.h",
-    "src/libxslt/attrvt.c",
-    "src/libxslt/documents.c",
-    "src/libxslt/documents.h",
-    "src/libxslt/extensions.c",
-    "src/libxslt/extensions.h",
-    "src/libxslt/extra.c",
-    "src/libxslt/extra.h",
-    "src/libxslt/functions.c",
-    "src/libxslt/functions.h",
-    "src/libxslt/imports.c",
-    "src/libxslt/imports.h",
-    "src/libxslt/keys.c",
-    "src/libxslt/keys.h",
-    "src/libxslt/libxslt.h",
-    "src/libxslt/namespaces.c",
-    "src/libxslt/namespaces.h",
-    "src/libxslt/numbers.c",
-    "src/libxslt/numbersInternals.h",
-    "src/libxslt/pattern.c",
-    "src/libxslt/pattern.h",
-    "src/libxslt/preproc.c",
-    "src/libxslt/preproc.h",
-    "src/libxslt/security.c",
-    "src/libxslt/security.h",
-    "src/libxslt/templates.c",
-    "src/libxslt/templates.h",
-    "src/libxslt/transform.c",
-    "src/libxslt/transform.h",
-    "src/libxslt/trio.h",
-    "src/libxslt/triodef.h",
-    "src/libxslt/variables.c",
-    "src/libxslt/variables.h",
-    "src/libxslt/win32config.h",
-    "src/libxslt/xslt.c",
-    "src/libxslt/xslt.h",
-    "src/libxslt/xsltInternals.h",
-    "src/libxslt/xsltconfig.h",
-    "src/libxslt/xsltexports.h",
-    "src/libxslt/xsltlocale.c",
-    "src/libxslt/xsltlocale.h",
-    "src/libxslt/xsltutils.c",
-    "src/libxslt/xsltutils.h",
-    "win32/config.h",
-  ]
-
-  configs -= [ "//build/config/compiler:chromium_code" ]
-  configs += [
-    "//build/config/compiler:no_chromium_code",
-
-    # Must be after no_chromium_code for warning flags to be ordered correctly.
-    ":libxslt_warnings",
-  ]
-  public_configs = [ ":libxslt_config" ]
-
-  cflags = []
-  if (is_linux || is_android || is_fuchsia) {
-    include_dirs = [ "linux" ]
-  } else if (is_win) {
-    include_dirs = [ "win32" ]
-    cflags += [
-      "/wd4267",  # size_t to int.
-
-      # TODO(brucedawson): http://crbug.com/554200 4311 is a VS
-      # 2015 64-bit warning for pointer truncation
-      "/wd4311",
-    ]
-  } else if (is_mac) {
-    include_dirs = [ "mac" ]
-  }
-
-  deps = [
-    "//third_party/libxml",
-  ]
+source_set("libxslt") {
+  public_configs = [ ":system_libxslt" ]
 }