From 8acadcb84bcb70e1eea08cf261a2f4f5973578c3 Mon Sep 17 00:00:00 2001 From: Richard Smith Date: Wed, 13 Jun 2012 20:27:03 +0000 Subject: Add -isystem-prefix and -ino-system-prefix arguments, which can be used to override whether headers are system headers by checking for prefixes of the header name specified in the #include directive. This allows warnings to be disabled for third-party code which is found in specific subdirectories of include paths. llvm-svn: 158418 --- clang/lib/Frontend/CompilerInvocation.cpp | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'clang/lib/Frontend/CompilerInvocation.cpp') diff --git a/clang/lib/Frontend/CompilerInvocation.cpp b/clang/lib/Frontend/CompilerInvocation.cpp index 99c338c8760..81d78c0e650 100644 --- a/clang/lib/Frontend/CompilerInvocation.cpp +++ b/clang/lib/Frontend/CompilerInvocation.cpp @@ -624,6 +624,16 @@ static void HeaderSearchOptsToArgs(const HeaderSearchOptions &Opts, Res.push_back(E.Path); } + /// User-specified system header prefixes. + for (unsigned i = 0, e = Opts.SystemHeaderPrefixes.size(); i != e; ++i) { + if (Opts.SystemHeaderPrefixes[i].IsSystemHeader) + Res.push_back("-isystem-prefix"); + else + Res.push_back("-ino-system-prefix"); + + Res.push_back(Opts.SystemHeaderPrefixes[i].Prefix); + } + if (!Opts.ResourceDir.empty()) Res.push_back("-resource-dir", Opts.ResourceDir); if (!Opts.ModuleCachePath.empty()) @@ -1688,6 +1698,14 @@ static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args) { Opts.AddPath((*I)->getValue(Args), frontend::System, false, false, /*IgnoreSysRoot=*/true, /*IsInternal=*/true, (*I)->getOption().matches(OPT_internal_externc_isystem)); + + // Add the path prefixes which are implicitly treated as being system headers. + for (arg_iterator I = Args.filtered_begin(OPT_isystem_prefix, + OPT_ino_system_prefix), + E = Args.filtered_end(); + I != E; ++I) + Opts.AddSystemHeaderPrefix((*I)->getValue(Args), + (*I)->getOption().matches(OPT_isystem_prefix)); } void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK, -- cgit v1.2.3