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-rw-r--r--tool/compile_prelude.rb3
1 files changed, 1 insertions, 2 deletions
diff --git a/tool/compile_prelude.rb b/tool/compile_prelude.rb
index 7199434441..e792b77406 100644
--- a/tool/compile_prelude.rb
+++ b/tool/compile_prelude.rb
@@ -33,8 +33,7 @@ lines_list = preludes.map {|filename|
unless mkconf
require 'rbconfig'
mkconf = RbConfig::MAKEFILE_CONFIG.merge('prefix'=>'#{TMP_RUBY_PREFIX}')
- exlen = $:.reverse.find{|e|e!="."}.length - RbConfig::CONFIG["prefix"].length
- setup_ruby_prefix = "TMP_RUBY_PREFIX = $:.reverse.find{|e|e!=\".\"}[0..#{-exlen-1}]\n"
+ setup_ruby_prefix = "TMP_RUBY_PREFIX = $:.reverse.find{|e|e!=\".\"}.sub(%r{(.*)/lib/.*}m, \"\\\\1\")\n"
teardown_ruby_prefix = 'Object.class_eval { remove_const "TMP_RUBY_PREFIX" }'
end
if RbConfig::MAKEFILE_CONFIG.has_key? key