Deprecate FEATURE_regularexpressionHEADdev

There have been places where regex support has been implied and bootstrap
always builds with regex enabled. Therefore, disabling
`FEATURE_regularexpression` currently produces an error. Until a need
for building without regex emerges, we are enforcing it as a
requirement.

Users must either use system or bundled pcre2.

Fixes: QTBUG-136346
Change-Id: I9e92bb4e7f0dfb84884a2a23f45b20d18ddc8985
Reviewed-by: Alexandru Croitor <[email protected]>

0 files changed, 0 insertions, 0 deletions