uim-0.4.6 has bugs with --disable-nls option. Please see http://lists.freedesktop.org/pipermail/uim/2005-March/001040.html. Reproducible: Always Steps to Reproduce: 1.USE="-nls" emerge app-i18n/uim Actual Results: Compilation fails.
Thanks for the bug report. Fixed in CVS. (I'll add alpha version of uim shortly, though)