2 files changed, 27 insertions, 0 deletions
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
index 59359530e39..385b805113f 100644
--- a/clang/lib/Parse/ParseDeclCXX.cpp
+++ b/clang/lib/Parse/ParseDeclCXX.cpp
@@ -536,6 +536,26 @@ void Parser::ParseClassSpecifier(tok::TokenKind TagTokKind,
   if (Tok.is(tok::kw___declspec))
     Attr = ParseMicrosoftDeclSpec(Attr);
   
+  if (TagType == DeclSpec::TST_struct && Tok.is(tok::kw___is_pod)) {
+    // GNU libstdc++ 4.2 uses __is_pod as the name of a struct template, but
+    // __is_pod is a keyword in GCC >= 4.3. Therefore, when we see the
+    // token sequence "struct __is_pod", make __is_pod into a normal 
+    // identifier rather than a keyword, to allow libstdc++ 4.2 to work
+    // properly.
+    Tok.getIdentifierInfo()->setTokenID(tok::identifier);
+    Tok.setKind(tok::identifier);
+  }
+
+  if (TagType == DeclSpec::TST_struct && Tok.is(tok::kw___is_empty)) {
+    // GNU libstdc++ 4.2 uses __is_empty as the name of a struct template, but
+    // __is_empty is a keyword in GCC >= 4.3. Therefore, when we see the
+    // token sequence "struct __is_empty", make __is_empty into a normal 
+    // identifier rather than a keyword, to allow libstdc++ 4.2 to work
+    // properly.
+    Tok.getIdentifierInfo()->setTokenID(tok::identifier);
+    Tok.setKind(tok::identifier);
+  }
+  
   // Parse the (optional) nested-name-specifier.
   CXXScopeSpec SS;
   if (getLang().CPlusPlus && 
diff --git a/clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp b/clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp
new file mode 100644
index 00000000000..df064bc6a0f
--- /dev/null
+++ b/clang/test/SemaCXX/libstdcxx_is_pod_hack.cpp
@@ -0,0 +1,7 @@
+// RUN: clang-cc -fsyntax-only %s
+
+template<typename T>
+struct __is_pod {
+};
+
+__is_pod<int> ipi;