Gentoo Packages

app-misc/carbon-c-relay: use <pkg>dev-libs/libpcre2</pkg> as regex implementation
dev-lang/gnu-apl: Enable pcre2
net-analyzer/zabbix: Use dev-libs/libpcre2 instead of dev-libs/libpcre
net-irc/inspircd: Add support for Perl Compatible Regular Expressions 2
sci-geosciences/gmt: Use libpcre2 for regular expressions
www-servers/angie: Enable support for pcre2
www-servers/nginx: Build with <pkg>dev-libs/libpcre2</pkg>

Warning: USE flag 'pcre2' is used in ebuilds/metadata but is not defined in profiles/use.desc

Package	Local Description (use.local.desc)	Metadata Description (metadata.xml)
www-servers/angie	-	Enable support for pcre2
net-analyzer/zabbix	-	Use dev-libs/libpcre2 instead of dev-libs/libpcre
app-misc/carbon-c-relay	use dev-libs/libpcre2 as regex implementation	use <pkg>dev-libs/libpcre2</pkg> as regex implementation
net-irc/inspircd	Add support for Perl Compatible Regular Expressions 2	Add support for Perl Compatible Regular Expressions 2
www-servers/nginx	Enable support for pcre2	Build with <pkg>dev-libs/libpcre2</pkg>
sci-geosciences/gmt	-	Use libpcre2 for regular expressions
dev-lang/gnu-apl	Enable pcre2	Enable pcre2

USE Flag: pcre2