extconf.rb: Fix Dir.empty? check

sass · May 8, 2019 · 22769b6 · 22769b6
1 parent e1dbffe
commit 22769b6
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/ext/extconf.rb b/ext/extconf.rb
@@ -3,7 +3,9 @@
 gem_root = File.expand_path('..', __dir__)
 libsass_dir = File.join(gem_root, 'ext', 'libsass')
 
-if !File.directory?(libsass_dir) || Dir.entries(libsass_dir).empty?
+if !File.directory?(libsass_dir) ||
+   # Dir.empty? is only available on Ruby v2.4+
+   Dir.entries(libsass_dir).size == 2
   Dir.chdir(gem_root) { system('git submodule update --init') }
 end