"make buildworld" fails with gcc34 on CURRENT.

[Jonathan Fosburgh]

cc -nostdlib -static -Ttext 0x0 -o loader.sym 
/usr/obj/usr/src/world_i386/usr/src/sys/boot/i386/loader/../btx/lib/crt0.o 
main.o conf.o bcache.o boot.o commands.o console.o devopen.o interp.o 
interp_backslash.o interp_parse.o ls.o misc.o module.o panic.o 
load_elf32.o load_elf64.o isapnp.o pnp.o interp_forth.o vers.o 
/usr/obj/usr/src/world_i386/usr/src/sys/boot/i386/loader/../../ficl/libficl.a 
/usr/obj/usr/src/world_i386/usr/src/sys/boot/i386/loader/../libi386/libi386.a 
/usr/obj/usr/src/world_i386/usr/src/sys/boot/i386/loader/../../../../lib/libstand/libstand.a 

interp_forth.o(.text+0xa): In function `bf_command':
: undefined reference to `__start_set_Xcommand_set'
interp_forth.o(.text+0x1a): In function `bf_command':
: undefined reference to `__stop_set_Xcommand_set'
interp_forth.o(.text+0x35): In function `bf_command':
: undefined reference to `__stop_set_Xcommand_set'
interp_forth.o(.text+0x5d): In function `bf_command':
: undefined reference to `__stop_set_Xcommand_set'
interp_forth.o(.text+0x2c9): In function `bf_init':
: undefined reference to `__start_set_Xcommand_set'
interp_forth.o(.text+0x31c): In function `bf_init':
: undefined reference to `__stop_set_Xcommand_set'
interp_forth.o(.text+0x3af): In function `bf_init':
: undefined reference to `__stop_set_Xcommand_set'
*** Error code 1
I've been getting the same errors. I reported it, though on kernel 
instead of here.