Add `enable_sanitizer` method for clang and gcc.

The patch is created by @take_cheese in #3872

1 files changed, 8 insertions, 0 deletions

diff --git a/tasks/toolchains/gcc.rake b/tasks/toolchains/gcc.rake
index f370c0abf..fc2e0bff3 100644
--- a/tasks/toolchains/gcc.rake
+++ b/tasks/toolchains/gcc.rake
@@ -55,4 +55,12 @@ MRuby::Toolchain.new(:gcc) do |conf, _params|
       @header_search_paths
     end
   end
+  
+  def conf.enable_sanitizer(*opts)
+    fail 'sanitizer already set' if @sanitizer_list
+
+    @sanitizer_list = opts
+    flg = "-fsanitize=#{opts.join ','}"
+    [self.cc, self.cxx, self.linker].each{|cmd| cmd.flags << flg }
+  end
 end