Driver: Don't honor -std-default for C++, this makes it hard to run the gdb test
suite with clang++ enabled.
The right fix here is PR6175, although we would still have to find a different
work around for the gdb test suite.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94838 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 565c13c..2e7435f 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -901,8 +901,14 @@
A->render(Args, CmdArgs);
} else {
// Honor -std-default.
- Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ,
- "-std=", /*Joined=*/true);
+ //
+ // FIXME: Clang doesn't correctly handle -std= when the input language
+ // doesn't match. For the time being just ignore this for C++ inputs;
+ // eventually we want to do all the standard defaulting here instead of
+ // splitting it between the driver and clang -cc1.
+ if (!types::isCXX(InputType))
+ Args.AddAllArgsTranslated(CmdArgs, options::OPT_std_default_EQ,
+ "-std=", /*Joined=*/true);
Args.AddLastArg(CmdArgs, options::OPT_trigraphs);
}