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Driver: Forward -traditional and -traditional-cpp in preprocessing modes. 

- We don't really support the majority of the horrible -traditional-cpp
   behavior, but it is unlikely that we ever will either. This allows us to
   start trying to use clang as a /usr/bin/cpp replacement and see what pieces
   of -traditional-cpp mode people actually care about.

llvm-svn: 127911
This commit is contained in:
Daniel Dunbar 2011-03-18 21:23:40 +00:00
parent 1057f86d0e
commit 8c3d735118
1 changed files with 7 additions and 2 deletions
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9
clang/lib/Driver/Tools.cpp
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@ -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);