Add mork workarounds for running the test suite against libstdc++

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@283960 91177308-0d34-0410-b5e6-96231b3b80d8

test/libcxx/test/config.py

@@ -225,6 +225,14 @@ class Configuration(object):
             self.lit_config.fatal(
                 'unsupported value for "cxx_stdlib_under_test": %s'
                 % self.cxx_stdlib_under_test)
+        if self.cxx_stdlib_under_test == 'libstdc++':
+            # Manually enable the experimental and filesystem tests for libstdc++
+            # if the options aren't present.
+            # FIXME this is a hack.
+            if self.get_lit_conf('enable_experimental') is None:
+                self.config.enable_experimental = 'true'
+            if self.get_lit_conf('enable_filesystem') is None:
+                self.config.enable_filesystem = 'true'
 
     def configure_use_clang_verify(self):
         '''If set, run clang with -verify on failing tests.'''
@@ -467,7 +475,7 @@ class Configuration(object):
         assert os.path.isdir(static_env)
         self.cxx.compile_flags += ['-DLIBCXX_FILESYSTEM_STATIC_TEST_ROOT="%s"' % static_env]
 
-        dynamic_env = os.path.join(self.libcxx_obj_root, 'test',
+        dynamic_env = os.path.join(self.config.test_exec_root,
                                    'filesystem', 'Output', 'dynamic_env')
         dynamic_env = os.path.realpath(dynamic_env)
         if not os.path.isdir(dynamic_env):

test/lit.cfg

@@ -37,7 +37,6 @@ if obj_root is None:
         obj_root = tempfile.mkdtemp(prefix='libcxx-testsuite-')
         lit_config.warning('Creating temporary directory for object root: %s' %
                            obj_root)
-        config.libcxx_obj_root = obj_root
 
 config.test_exec_root = os.path.join(obj_root, 'test')
 

test/lit.site.cfg.in

@@ -29,4 +29,5 @@ config.libcxxabi_shared         = "@LIBCXXABI_ENABLE_SHARED@"
 config.libcxx_external_thread_api  = "@LIBCXX_HAS_EXTERNAL_THREAD_API@"
 
 # Let the main config do the real work.
+config.loaded_site_config = True
 lit_config.load_config(config, "@LIBCXX_SOURCE_DIR@/test/lit.cfg")