Perhaps this will fix the recent grep test failure reported at:
https://buildfarm.opencsw.org/buildbot/builders/ggrep-solaris10-sparc/builds/199
At least, the debug output should help narrow down the failure.
* tests/test-regex.c: Include stdarg.h, stdio.h.
(exit_status): New var.
(report_error): New function.
(main): Use it to report failures to stdout instead of merely
exiting with some nonzero status. The status info alone isn’t
enough to do remote debugging. In the new tr_TR.UTF-8 test, clear
regex before calling re_compile_pattern, fixing a portability bug.