+++ This bug was initially created as a clone of Bug #1582219 +++
Description of problem:
E.g. '[[=a=]]' regex doesn't match 'รก' in Czech locale as it should. It seems to be regression, because it worked in glibc-2.26 and older. All locales seems to be affected, not only the Czech.
How reproducible:
Always
Steps to Reproduce:
1. gcc -o regex regex.c
2. ./regex
Actual results:
locale: cs_CZ.UTF-8
regcomp: 0
regexec: 1
Expected results:
locale: cs_CZ.UTF-8
regcomp: 0
regexec: 0