File clang-ignore-stack-clash-protector.patch of Package llvm5

Index: cfe-4.0.1.src/include/clang/Driver/Options.td
===================================================================
--- cfe-4.0.1.src.orig/include/clang/Driver/Options.td
+++ cfe-4.0.1.src/include/clang/Driver/Options.td
@@ -640,6 +640,7 @@ def fexcess_precision_EQ : Joined<["-"],
     Group<clang_ignored_gcc_optimization_f_Group>;
 def : Flag<["-"], "fexpensive-optimizations">, Group<clang_ignored_gcc_optimization_f_Group>;
 def : Flag<["-"], "fno-expensive-optimizations">, Group<clang_ignored_gcc_optimization_f_Group>;
+def : Flag<["-"], "fstack-clash-protection">, Group<clang_ignored_f_Group>;
 def fextdirs_EQ : Joined<["-"], "fextdirs=">, Group<f_Group>;
 def : Flag<["-"], "fdefer-pop">, Group<clang_ignored_gcc_optimization_f_Group>;
 def : Flag<["-"], "fno-defer-pop">, Group<clang_ignored_gcc_optimization_f_Group>;