mips build failures

[Alan Modra]

Looks like mips gas only supports ELF.  Can one of the mips maintainers
look at this?

--target=mips-dec-bsd

tc-mips.o: In function `s_change_section':
/src/binutils-current/gas/config/tc-mips.c:11283: undefined reference to `obj_elf_section'
/src/binutils-current/gas/config/tc-mips.c:11307: undefined reference to `obj_elf_change_section'
tc-mips.o: In function `md_begin':
/src/binutils-current/gas/config/tc-mips.c:1104: undefined reference to `ecoff_directive_extern'
collect2: ld returned 1 exit status
make[3]: *** [as-new] Error 1

--target=mips-unknown-ecoff

tc-mips.o: In function `s_change_section':
/src/binutils-current/gas/config/tc-mips.c:11283: undefined reference to `obj_elf_section'
/src/binutils-current/gas/config/tc-mips.c:11307: undefined reference to `obj_elf_change_section'
collect2: ld returned 1 exit status
make[3]: *** [as-new] Error 1

--target=mips-unknown-pe

tc-mips.o: In function `s_change_section':
/src/binutils-current/gas/config/tc-mips.c:11283: undefined reference to `obj_elf_section'
/src/binutils-current/gas/config/tc-mips.c:11307: undefined reference to `obj_elf_change_section'
tc-mips.o: In function `md_begin':
/src/binutils-current/gas/config/tc-mips.c:1104: undefined reference to `ecoff_directive_extern'
collect2: ld returned 1 exit status
make[3]: *** [as-new] Error 1

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre