diff options
Diffstat (limited to 'lib/Driver/ToolChain.cpp')
| -rw-r--r-- | lib/Driver/ToolChain.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp index 11deed1588..5418436315 100644 --- a/lib/Driver/ToolChain.cpp +++ b/lib/Driver/ToolChain.cpp @@ -232,7 +232,16 @@ ToolChain::CXXStdlibType ToolChain::GetCXXStdlibType(const ArgList &Args) const{ void ToolChain::AddClangCXXStdlibIncludeArgs(const ArgList &Args, ArgStringList &CmdArgs) const { - // Header search paths are handled by each of the subclasses. + // Header search paths should be handled by each of the subclasses. + // Historically, they have not been, and instead have been handled inside of + // the CC1-layer frontend. As the logic is hoisted out, this generic function + // will slowly stop being called. + // + // While it is being called, replicate a bit of a hack to propagate the + // '-stdlib=' flag down to CC1 so that it can in turn customize the C++ + // header search paths with it. Once all systems are overriding this + // function, the CC1 flag and this line can be removed. + Args.AddAllArgs(CmdArgs, options::OPT_stdlib_EQ); } void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args, |