I got error:

 /usr/src/gnu/lib/libgcc/../../../contrib/gcc/libgcc2.c:1: error: bad value (P4) for -march= switch
/usr/src/gnu/lib/libgcc/../../../contrib/gcc/libgcc2.c:1: error: bad value (P4) for -mtune= switch
/usr/src/gnu/lib/libgcc/../../../contrib/gcc/libgcc2.c:1: error: bad value (P4) for -march= switch
/usr/src/gnu/lib/libgcc/../../../contrib/gcc/libgcc2.c:1: error: bad value (P4) for -mtune= switch

Here is dmesg | head -15
------------------------
pppoe2# dmesg |head -15
Copyright (c) 1992-2007 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 6.2-RELEASE #0: Fri Jan 12 11:05:30 UTC 2007
    root@dessler.cse.buffalo.edu:/usr/obj/usr/src/sys/SMP
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 3.00GHz (2992.52-MHz 686-class CPU)
  Origin = "GenuineIntel"  Id = 0xf43  Stepping = 3
  Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFL
  Features2=0x641d<SSE3,RSVD2,MON,DS_CPL,CNTX-ID,CX16,<b14>>
  AMD Features=0x20100000<NX,LM>
  Logical CPUs per core: 2
real memory  = 3757965312 (3583 MB)
avail memory = 3678437376 (3508 MB)