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diff -ruN tools/clang/include/clang/Basic/LangOptions.def tools/clang/include/clang/Basic/LangOptions.def
--- tools/clang/include/clang/Basic/LangOptions.def 2013-11-06 23:31:51.000000000 +0400
+++ tools/clang/include/clang/Basic/LangOptions.def 2014-10-24 20:19:55.000000000 +0400
@@ -84,6 +84,7 @@
LANGOPT(RTTI , 1, 1, "run-time type information")
LANGOPT(MSBitfields , 1, 0, "Microsoft-compatible structure layout")
LANGOPT(Freestanding, 1, 0, "freestanding implementation")
+LANGOPT(FormatExtensions , 1, 0, "FreeBSD format extensions")
LANGOPT(NoBuiltin , 1, 0, "disable builtin functions")
LANGOPT(NoMathBuiltin , 1, 0, "disable math builtin functions")
diff -ruN tools/clang/include/clang/Driver/Options.td tools/clang/include/clang/Driver/Options.td
--- tools/clang/include/clang/Driver/Options.td 2013-11-17 20:03:29.000000000 +0400
+++ tools/clang/include/clang/Driver/Options.td 2014-10-24 20:16:16.000000000 +0400
@@ -530,6 +530,8 @@
def ffreestanding : Flag<["-"], "ffreestanding">, Group<f_Group>, Flags<[CC1Option]>,
HelpText<"Assert that the compilation takes place in a freestanding environment">;
+def fformat_extensions: Flag<["-"], "fformat-extensions">, Group<f_Group>, Flags<[CC1Option]>,
+ HelpText<"Enable FreeBSD kernel specific format string extensions">;
def fgnu_keywords : Flag<["-"], "fgnu-keywords">, Group<f_Group>, Flags<[CC1Option]>,
HelpText<"Allow GNU-extension keywords regardless of language standard">;
def fgnu89_inline : Flag<["-"], "fgnu89-inline">, Group<f_Group>, Flags<[CC1Option]>,
diff -ruN tools/clang/lib/Driver/Tools.cpp tools/clang/lib/Driver/Tools.cpp
--- tools/clang/lib/Driver/Tools.cpp 2014-04-12 00:31:24.000000000 +0400
+++ tools/clang/lib/Driver/Tools.cpp 2014-10-24 20:17:22.000000000 +0400
@@ -2984,6 +2984,7 @@
// Forward -f (flag) options which we can pass directly.
Args.AddLastArg(CmdArgs, options::OPT_femit_all_decls);
+ Args.AddLastArg(CmdArgs, options::OPT_fformat_extensions);
Args.AddLastArg(CmdArgs, options::OPT_fheinous_gnu_extensions);
Args.AddLastArg(CmdArgs, options::OPT_flimit_debug_info);
Args.AddLastArg(CmdArgs, options::OPT_fno_limit_debug_info);
diff -ruN tools/clang/lib/Frontend/CompilerInvocation.cpp tools/clang/lib/Frontend/CompilerInvocation.cpp
--- tools/clang/lib/Frontend/CompilerInvocation.cpp 2013-11-18 17:23:07.000000000 +0400
+++ tools/clang/lib/Frontend/CompilerInvocation.cpp 2014-10-24 20:18:26.000000000 +0400
@@ -1319,6 +1319,7 @@
Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
+ Opts.FormatExtensions = Args.hasArg(OPT_fformat_extensions);
Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
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