Don't compile the extension on non-CRuby, it's unused

ruby-concurrency · Jan 21, 2023 · d867c17 · d867c17
1 parent b764c86
commit d867c17
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/ext/concurrent-ruby-ext/extconf.rb b/ext/concurrent-ruby-ext/extconf.rb
@@ -1,8 +1,13 @@
 require 'fileutils'
+require 'mkmf'
+
+unless RUBY_ENGINE == "ruby"
+  File.write("Makefile", dummy_makefile($srcdir).join(""))
+  exit
+end
 
 extension_name = 'concurrent_ruby_ext'
 
-require 'mkmf'
 dir_config(extension_name)
 have_header "libkern/OSAtomic.h"