diff options
Diffstat (limited to 'clang/lib')
| -rw-r--r-- | clang/lib/Sema/SemaDecl.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp index 5a4df400f3b..59b4f5f2292 100644 --- a/clang/lib/Sema/SemaDecl.cpp +++ b/clang/lib/Sema/SemaDecl.cpp @@ -1870,9 +1870,14 @@ Decl *Sema::ParsedFreeStandingDeclSpec(Scope *S, AccessSpecifier AS, if (emittedWarning || (TagD && TagD->isInvalidDecl())) return TagD; + // Note that a linkage-specification sets a storage class, but + // 'extern "C" struct foo;' is actually valid and not theoretically + // useless. if (DeclSpec::SCS scs = DS.getStorageClassSpec()) - Diag(DS.getStorageClassSpecLoc(), diag::warn_standalone_specifier) - << DeclSpec::getSpecifierName(scs); + if (!DS.isExternInLinkageSpec()) + Diag(DS.getStorageClassSpecLoc(), diag::warn_standalone_specifier) + << DeclSpec::getSpecifierName(scs); + if (DS.isThreadSpecified()) Diag(DS.getThreadSpecLoc(), diag::warn_standalone_specifier) << "__thread"; if (DS.getTypeQualifiers()) { |
