Pass -fdiagnostics-show-option to clang-cc by default.
- <rdar://problem/6796848> implement -fdiagnostics-show-option
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@69276 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 60bcb0f..8e4abb1 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -479,6 +479,11 @@
D.Diag(clang::diag::warn_drv_clang_unsupported)
<< Args.getLastArg(options::OPT_funsigned_bitfields)->getAsString(Args);
+ // Enable -fdiagnostics-show-option by default.
+ if (Args.hasFlag(options::OPT_fdiagnostics_show_option,
+ options::OPT_fno_diagnostics_show_option))
+ CmdArgs.push_back("-fdiagnostics-show-option");
+
Args.AddLastArg(CmdArgs, options::OPT_dM);
Args.AddLastArg(CmdArgs, options::OPT_dD);