The Taroon GConf-1.0.9-12.src.rpm package does not build correctly on Taroon (everything install) because there are failed dependencies: error: Failed build dependencies: oaf-devel is needed by GConf-1.0.9-12 oaf-devel is not included in Taroon (but oaf is)
Taroon isn't intended to be self-hosting; the -devel packages are removed to limit ABI support liability (keep customers/ISVs from using libraries that we don't want to live with forever).