linux: gyp should fail if the build dependencies aren't met.

build/linux/pkg_config_wrapper.py

Index: build/linux/pkg_config_wrapper.py
diff --git a/build/linux/pkg_config_wrapper.py b/build/linux/pkg_config_wrapper.py
deleted file mode 100644
index 30603400b5558dbdf8eceb0d860a322cd58fc299..0000000000000000000000000000000000000000
--- a/build/linux/pkg_config_wrapper.py
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/bin/env python
-# Copyright (c) 2009 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.
-
-__doc__ = """
-Wrapper script for executing pkg-config with the arguments supplied
-on the command line and suppressing the exit status and error output
-when the error is simply that the specified package isn't installed.
-"""
-
-import sys
-import subprocess
-
-p = subprocess.Popen(['pkg-config'] + sys.argv[1:],
-                     stderr=subprocess.PIPE)
-(stdout, stderr) = p.communicate()
-
-exit_status = p.wait()
-
-if exit_status == 1:
-    import re
-    if re.search('No package.*found', stderr):
-        # Exit status of 1 with a presumably "normal" not found message.
-        # Just swallow the "error."
-        sys.exit(0)
-
-sys.stderr.write(stderr)
-
-sys.exit(exit_status)