After the stabreq for icu-4.6 (http://bugs.gentoo.org/show_bug.cgi?id=350861) nss fails to build: /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.4/../../../../x86_64-pc-linux-gnu/bin/ld: warning: libicui18n.so.44, needed by /usr/lib64/libsqlite3.so, not found (try using -rpath or -rpath-link) /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.4/../../../../x86_64-pc-linux-gnu/bin/ld: warning: libicuuc.so.44, needed by /usr/lib64/libsqlite3.so, not found (try using -rpath or -rpath-link) /usr/lib64/libsqlite3.so: undefined reference to `uregex_matches_44' /usr/lib64/libsqlite3.so: undefined reference to `uregex_setText_44' /usr/lib64/libsqlite3.so: undefined reference to `u_isspace_44' /usr/lib64/libsqlite3.so: undefined reference to `uregex_close_44' /usr/lib64/libsqlite3.so: undefined reference to `ucol_strcoll_44' /usr/lib64/libsqlite3.so: undefined reference to `uregex_open_44' /usr/lib64/libsqlite3.so: undefined reference to `u_strToUTF8_44' /usr/lib64/libsqlite3.so: undefined reference to `utf8_countTrailBytes_44' /usr/lib64/libsqlite3.so: undefined reference to `ubrk_close_44' /usr/lib64/libsqlite3.so: undefined reference to `ucol_open_44' /usr/lib64/libsqlite3.so: undefined reference to `ucol_close_44' /usr/lib64/libsqlite3.so: undefined reference to `utf8_nextCharSafeBody_44' /usr/lib64/libsqlite3.so: undefined reference to `ubrk_open_44' /usr/lib64/libsqlite3.so: undefined reference to `ubrk_next_44' /usr/lib64/libsqlite3.so: undefined reference to `u_strToUpper_44' /usr/lib64/libsqlite3.so: undefined reference to `ubrk_first_44' /usr/lib64/libsqlite3.so: undefined reference to `u_foldCase_44' /usr/lib64/libsqlite3.so: undefined reference to `u_strToLower_44' /usr/lib64/libsqlite3.so: undefined reference to `u_errorName_44' /usr/lib64/libsqlite3.so: undefined reference to `ubrk_current_44' collect2: ld returned 1 exit status make[2]: *** [Linux2.6_x86_64_x86_64-pc-linux-gnu-gcc_glibc_PTH_64_OPT.OBJ/bltest] Error 1 Reproducible: Always
Note, that the problem actually happens in sqlite and do a revdep-rebuild first.
You are right, re-emerging sqlite fixed it.