On Thu, May 18, 2006 at 11:38:34AM -0600, Christopher D. Rickett wrote: > build/genconstants.o(.text+0x182): In function `VEC_rtx_base_last': > /home/crickett/svnGcc/trunk/gcc/rtl.h:194: undefined reference to > `vec_assert_fail' I'm seeing the same thing on i686-pc-cygwin, building a native compiler. See my comment on http://gcc.gnu.org/PR27251 .