extconf.rb in ruby-vpi-15.0.0

- old
+ new

@@ -1,7 +1,2 @@
 require 'mkmf'
-require 'rbconfig'
-
-have_library('pthread', 'pthread_create') &&
-have_library(Config::CONFIG['RUBY_SO_NAME'] || 'ruby', 'ruby_init') &&
-
 create_makefile('ruby-vpi')