msan-builder: fix boost build.

infra/base-images/msan-builder/compiler_wrapper.py

@@ -92,7 +92,7 @@ def RemoveZDefs(args):
   return filtered
 
 
-def GetCompilerArgs(args):
+def GetCompilerArgs(args, is_cxx):
   """Generate compiler args."""
   compiler_args = args[1:]
 
@@ -125,6 +125,9 @@ def GetCompilerArgs(args):
     # If MSan flags weren't added for some reason, add them here.
     compiler_args.extend(msan_build.INJECTED_ARGS)
 
+  if is_cxx:
+    compiler_args.append('-stdlib=libc++')
+
   return compiler_args
 
 
@@ -140,7 +143,7 @@ def main(args):
   if is_cxx:
     real_clang += '++'
 
-  args = [real_clang] + GetCompilerArgs(args)
+  args = [real_clang] + GetCompilerArgs(args, is_cxx)
   debug_log_path = os.getenv('WRAPPER_DEBUG_LOG_PATH')
   if debug_log_path:
     with open(debug_log_path, 'a') as f:

infra/base-images/msan-builder/msan_build.py

@@ -215,14 +215,15 @@ def GetPackage(package_name):
   apt_cache = apt.Cache()
   version = apt_cache[package_name].candidate
   source_name = version.source_name
+  local_source_name = source_name.replace('.', '_')
 
-  custom_package_path = os.path.join(PACKAGES_DIR, source_name) + '.py'
+  custom_package_path = os.path.join(PACKAGES_DIR, local_source_name) + '.py'
   if not os.path.exists(custom_package_path):
     print('Using default package build steps.')
     return package.Package(source_name, version)
 
   print('Using custom package build steps.')
-  module = imp.load_source('packages.' + source_name, custom_package_path)
+  module = imp.load_source('packages.' + local_source_name, custom_package_path)
   return module.Package(version)
 
 

infra/base-images/msan-builder/packages/boost1_58.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+import package
+
+
+class Package(package.Package):
+  """boost1.58 package."""
+
+  def __init__(self, apt_version):
+    super(Package, self).__init__('boost1.58', apt_version)
+
+  def PreBuild(self, source_directory, env, custom_bin_dir):
+    # Otherwise py_nonblocking.cpp fails to build.
+    env['DEB_CXXFLAGS_APPEND'] += ' -std=c++98'