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-rwxr-xr-xtool/mkconfig.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/tool/mkconfig.rb b/tool/mkconfig.rb
index 7919aec736..fc91ddec3f 100755
--- a/tool/mkconfig.rb
+++ b/tool/mkconfig.rb
@@ -171,7 +171,7 @@ puts %[\
# changes made to this file will be lost the next time ruby is built.
module RbConfig
- RUBY_VERSION.start_with?("#{version}"[/^[0-9]+[.][0-9]+[.]/]) or
+ RUBY_VERSION.start_with?("#{version[/^[0-9]+\.[0-9]+\./] || version}") or
raise "ruby lib version (#{version}) doesn't match executable version (\#{RUBY_VERSION})"
]