Error: /usr/local/Library/Formula/coreutils

coreutils fails to compile on Tiger:

==> ./configure --prefix=/usr/local/Cellar/coreutils/8.30 --program-prefix=g --without-gmp
==> make install
Last 15 lines from /Users/tnx/Library/Logs/Homebrew/coreutils/02.make:
  CC       src/yes.o
  CCLD     src/yes
  CC       src/getlimits.o
  CCLD     src/getlimits
  CC       src/make-prime-list.o
  CCLD     src/make-prime-list
  CC       src/src_libstdbuf_so-libstdbuf.o
  CCLD     src/libstdbuf.so
powerpc-apple-darwin8-gcc-4.0.1: unrecognized option '-shared'
/usr/libexec/gcc/powerpc-apple-darwin8/4.0.1/ld: Undefined symbols:
_main
collect2: ld returned 1 exit status
make[2]: *** [src/libstdbuf.so] Error 1
make[1]: *** [install-recursive] Error 1
make: *** [install] Error 2

READ THIS: https://github.com/mistydemeo/tigerbrew/wiki/troubleshooting

These open issues may also help:
Error: /usr/local/Library/Formula/coreutils https://github.com/mistydemeo/tigerbrew/issues/640
coreutils 'who' does not list any users (10.4/G4) https://github.com/mistydemeo/tigerbrew/issues/363

brew doctor output:

Your system is ready to brew.

mistydemeo / tigerbrew

Error: /usr/local/Library/Formula/coreutils #640