According to the ebuild the package supports optional support for CDB libraries. configure.ac uses PKG_CHECK_MODULES so that a pkgconfig file has to be provided by libcdb/tinycdb. How was this package/useflag tested? I can't seem to get it to work. Reproducible: Always Steps to Reproduce: 1. Enable tinydns useflag for net-dns/pdns 2. See how configure fails to recognize the installed dependency library.
1) Please post your `emerge --info' output in a comment. 2) Please attach the entire build log to this bug report.