File gcc9-sanitizer.patch of Package meson

Index: b/mesonbuild/compilers/compilers.py
===================================================================
--- a/mesonbuild/compilers/compilers.py
+++ b/mesonbuild/compilers/compilers.py
@@ -464,7 +464,7 @@ def sanitizer_compile_args(value):
 def sanitizer_link_args(value):
     if value == 'none':
         return []
-    args = ['-fsanitize=' + value]
+    args = ['-fsanitize=' + value, '-ldl', '-lrt', '-lm', '-lpthread']
     return args
 
 def option_enabled(boptions, options, option):