If you have changed your infodir and mandir (at least), util-linux will not
build.
This can be seen on an updated RHL62 box.

The problem is that even though the proper values are passed to %configure,
they are not written to MCONFIG.

This should fix the problem in a generic fashion.

--- util-linux.spec~    Wed Nov 14 19:41:10 2001
+++ util-linux.spec     Mon Nov 19 11:11:42 2001
@@ -112,6 +112,9 @@
 %build
 unset LINGUAS || :

+perl -pi -e s':^MAN_DIR=.*:MAN_DIR=    %{_mandir}:' MCONFIG
+perl -pi -e s':^INFO_DIR=.*:INFO_DIR=  %{_infodir}:' MCONFIG
+
 %configure

 make "OPT=$RPM_OPT_FLAGS -g -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE" \

(note a tab after {INFO,MAN}_DIR in perl, probably munged in cut'n'paste).