Commit ede75ad3eeeafe72d1af9de84897905edf76bd70
2021-03-07T02:47:03
regex: Allow locking optimization independently of 'unlocked-io'. * lib/regex_internal.h: Test GNULIB_REGEX_SINGLE_THREAD instead of USE_UNLOCKED_IO. * doc/multithread.texi: Document GNULIB_REGEX_SINGLE_THREAD.