diff options
Diffstat (limited to 'clang')
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index ee4976ee72b..1c3112aeca2 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -1773,9 +1773,14 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, } #endif + // Only allow -traditional or -traditional-cpp outside in preprocessing modes. if (Arg *A = Args.getLastArg(options::OPT_traditional, - options::OPT_traditional_cpp)) - D.Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args); + options::OPT_traditional_cpp)) { + if (isa<PreprocessJobAction>(JA)) + CmdArgs.push_back("-traditional-cpp"); + else + D.Diag(clang::diag::err_drv_clang_unsupported) << A->getAsString(Args); + } Args.AddLastArg(CmdArgs, options::OPT_dM); Args.AddLastArg(CmdArgs, options::OPT_dD); |
