2 files changed, 1 insertions, 6 deletions
diff --git a/ext/dl/cptr.c b/ext/dl/cptr.c
index 3be97b272c..aeb1852b48 100644
--- a/ext/dl/cptr.c
+++ b/ext/dl/cptr.c
@@ -420,11 +420,7 @@ rb_dlptr_s_to_ptr(VALUE self, VALUE val)
 	rb_io_t *fptr;
 	FILE *fp;
 	GetOpenFile(val, fptr);
-#if HAVE_RB_IO_STDIO_FILE
 	fp = rb_io_stdio_file(fptr);
-#else
-	fp = fptr->fd;
-#endif
 	return rb_dlptr_new(fp, 0, NULL);
     }
     else if( rb_obj_is_kind_of(val, rb_cString) == Qtrue ){
diff --git a/ext/dl/extconf.rb b/ext/dl/extconf.rb
index 8bac1e83fb..abd8d8f781 100644
--- a/ext/dl/extconf.rb
+++ b/ext/dl/extconf.rb
@@ -25,8 +25,7 @@ else
   check = false
 end
 
-if( check )
-  have_func("rb_io_stdio_file", "ruby/ruby.h")
+if check
   $defs << %[-DRUBY_VERSION=\\"#{RUBY_VERSION}\\"]
   create_makefile("dl")
 end