Remove unnecessary -I$(top_srcdir) when it's an individual gem

aycabta · aycabta · commit efaca4a5f4a8 · 2020-02-09T15:33:28.000+09:00
diff --git a/ext/readline/extconf.rb b/ext/readline/extconf.rb
@@ -109,5 +109,4 @@ def readline.have_type(type)
   $defs << "-Drl_hook_func_t=Function"
 end
 
-$INCFLAGS << " -I$(top_srcdir)"
 create_makefile("readline")
