Why can't I build a native i686-pc-cygwin compiler?

[<aspiesrule at mcleodusa dot net>]

I am trying to build a native compiler for i686-pc-cygwin.  I use Cygwin 
version 1.5.5 on Windows NT 5.1.  I can configure just fine (here is the 
cmdline for the configure script:  "~/gcc-build/configure --
prefix=${HOME}/gcc-objs --with-gnu-as --with-gnu-ld --disable-werror --
enable-checking=misc,tree,gc,rtl,rtlflag,fold,gcac") but "make bootstrap" 
fails with an error.  The error message and associated make verbiage are as 
follows:

stage1/xgcc.exe -Bstage1/ -B/home/Lucas/gcc-objs/i686-pc-cygwin/bin/   -g -
O2 -D
IN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -
peda
ntic -Wno-long-long -Wold-style-definition  -fno-common   -DHAVE_CONFIG_H -
DGENE
RATOR_FILE  -o genattrtab.exe \
 genattrtab.o genautomata.o \
 rtl.o read-rtl.o bitmap.o ggc-none.o min-insn-modes.o gensupport.o insn-
conditi
ons.o print-rtl1.o errors.o \
 varray.o ../libiberty/libiberty.a -lm
/genattrtab.exe /home/Lucas/gcc-build/gcc/config/i386/i386.md > tmp-
attrtab.c
Check description...done
Reservation transformation...done
Check unit distributions to automata...done
Prepare automaton `pentium' creation...done
Create automaton `pentium' (1 star is 100 new states): done
Make DFA `pentium' (1 star is 100 new states): done
Minimize DFA `pentium'...done
Prepare automaton `pentium_fpu' creation...done
Create automaton `pentium_fpu' (1 star is 100 new states): done
Make DFA `pentium_fpu' (1 star is 100 new states): done
Minimize DFA `pentium_fpu'...done
Prepare automaton `athlon' creation...done
Create automaton `athlon' (1 star is 100 new states):***** done
Make DFA `athlon' (1 star is 100 new states): done
Minimize DFA `athlon'...done
Prepare automaton `athlon_load' creation...done
Create automaton `athlon_load' (1 star is 100 new states):* done
Make DFA `athlon_load' (1 star is 100 new states): done
Minimize DFA `athlon_load'...done
Prepare automaton `athlon_mult' creation...done
Create automaton `athlon_mult' (1 star is 100 new states): done
Make DFA `athlon_mult' (1 star is 100 new states): done
Minimize DFA `athlon_mult'...done
Prepare automaton `athlon_fp' creation...done
Create automaton `athlon_fp' (1 star is 100 new 
states):************************
*****************************************************************************
***
*************************************************** done
Make DFA `athlon_fp' (1 star is 100 new states): done
Minimize DFA `athlon_fp'...done
Generation of attributes...done
All other genattrtab stuff...done
Forming and outputting automata tables...done
Output functions to work with automata...done

Automaton `pentium'
       48 NDFA states,            138 NDFA arcs
       48 DFA states,             138 DFA arcs
       20 minimal DFA states,      82 minimal DFA arcs
      158 all insns         17 insn equivalence classes
   91 transition comb vector els,   340 trans table els: use comb vect
   91 state alts comb vector els,   340 state alts table els: use comb vect
  340 min delay table els, compression factor 2

Automaton `pentium_fpu'
       80 NDFA states,            172 NDFA arcs
       80 DFA states,             172 DFA arcs
       75 minimal DFA states,     162 minimal DFA arcs
      158 all insns          8 insn equivalence classes
  164 transition comb vector els,   600 trans table els: use comb vect
  164 state alts comb vector els,   600 state alts table els: use comb vect
  600 min delay table els, compression factor 1

Automaton `athlon'
      518 NDFA states,           1668 NDFA arcs
      518 DFA states,            1668 DFA arcs
       76 minimal DFA states,     328 minimal DFA arcs
      158 all insns         10 insn equivalence classes
  382 transition comb vector els,   760 trans table els: use simple vect
  382 state alts comb vector els,   760 state alts table els: use simple vect
  760 min delay table els, compression factor 2

Automaton `athlon_load'
      162 NDFA states,            855 NDFA arcs
      162 DFA states,             855 DFA arcs
      162 minimal DFA states,     855 minimal DFA arcs
      158 all insns         10 insn equivalence classes
 1039 transition comb vector els,  1620 trans table els: use simple vect
 1039 state alts comb vector els,  1620 state alts table els: use simple vect
 1620 min delay table els, compression factor 2

Automaton `athlon_mult'
       16 NDFA states,             48 NDFA arcs
       16 DFA states,              48 DFA arcs
       16 minimal DFA states,      48 minimal DFA arcs
      158 all insns          4 insn equivalence classes
   52 transition comb vector els,    64 trans table els: use simple vect
   52 state alts comb vector els,    64 state alts table els: use simple vect
   64 min delay table els, compression factor 2

Automaton `athlon_fp'
    15522 NDFA states,          99908 NDFA arcs
    15522 DFA states,           99908 DFA arcs
      463 minimal DFA states,    3038 minimal DFA arcs
      158 all insns         21 insn equivalence classes
 3051 transition comb vector els,  9723 trans table els: use comb vect
 3051 state alts comb vector els,  9723 state alts table els: use comb vect
 9723 min delay table els, compression factor 1

17012 all allocated states,     101385 all allocated arcs
20258 all allocated alternative states
 4779 all transition comb vector els, 13107 all trans table els
 4779 all state alts comb vector els, 13107 all state alts table els
13107 all min delay table els
    0 locked states num

  transformation: 0.031000, building DFA: 6.625000
  DFA minimization: 0.641000, making insn equivalence: 0.000000
 all automaton generation: 7.359000, output: 0.125000
/bin/sh /home/Lucas/gcc-build/gcc/move-if-change tmp-attrtab.c insn-attrtab.c
insn-attrtab.c is unchanged
echo timestamp > s-attrtab
stage1/xgcc.exe -Bstage1/ -B/home/Lucas/gcc-objs/i686-pc-cygwin/bin/   -g -
O2 -D
IN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -
peda
ntic -Wno-long-long -Wold-style-definition  -fno-common   -
DHAVE_CONFIG_H    -I.
 -I. -I/home/Lucas/gcc-build/gcc -I/home/Lucas/gcc-build/gcc/. -
I/home/Lucas/gcc
-build/gcc/../include  -c insn-attrtab.c \
  -o insn-attrtab.o
make[2]: *** [insn-attrtab.o] Error 1
make[2]: Leaving directory `/home/Lucas/gcc-objs/gcc'
make[1]: *** [stage2_build] Error 2
make[1]: Leaving directory `/home/Lucas/gcc-objs/gcc'
make: *** [bootstrap] Error 2

What went wrong here?  Is this a bug in the Makefile, make, cygwin.dll, or 
something else entirely?