app-misc
app-misc / carbon-c-relay : Enhanced C version of Carbon relay, aggregator and rewriter
- use dev-libs/libpcre2 as regex implementation
mail-filter
mail-filter / rspamd : Rapid spam filtering system
- Use dev-libs/libpcre2
net-proxy
net-proxy / haproxy : A TCP/HTTP reverse proxy for high availability environments
- Enable PCRE2 RegEx support
sys-libs
sys-libs / libselinux : SELinux userland library
- Use dev-libs/libpcre2 for fcontext regexes