Reference

pcre-config(1) on Linux

The text dc84f9f6f9b0, as Debian 5.0 (Lenny), Debian 4.0 (Etch), Debian 3.1 (Sarge), Debian 3.0 (Woody) shipped it.

program to return PCRE configuration

Flags it lists

pcre-config(1) on Linux now