Error on Firefox build of 1.0.4 for Mac OS X Tiger

I followed all the instructions at the Mozilla the site to build myself an
optimized version of Firefox for my G3 running Mac OS X 10.4 Tiger. However
when I try to run the command "make -f client.mk build" it will get so far
and fail when it get to this point.

gcc -o MoreFilesX.o -c -DOSTYPE=\"Darwin8.0.0\" -DOSARCH=\"Darwin\"
-I../../dist/include/macmorefiles -I../../dist/include
-I/Users/peter/Downloads/mozilla/dist/include/nspr     -I/usr/X11R6/include
-fPIC -I/usr/X11R6/include -Wall -W -Wno-unused -Wpointer-arith -Wcast-align
-Wno-long-long -fpascal-strings -no-cpp-precomp -fno-common
-I/Developer/Headers/FlatCarbon -pipe  -DDEBUG -D_DEBUG -DDEBUG_peter
-DTRACING -g  -I/usr/X11R6/include -include ../../mozilla-config.h
-DMOZILLA_CLIENT -Wp,-MD,.deps/MoreFilesX.pp MoreFilesX.c
In file included from MoreFilesX.c:80:
MoreFilesX.h:1341: error: conflicting types for 'FSLockRange'
/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.fram
ework/Headers/Files.h:3373: error: previous declaration of 'FSLockRange' was
here
MoreFilesX.h:1364: error: conflicting types for 'FSUnlockRange'
/System/Library/Frameworks/CoreServices.framework/Frameworks/CarbonCore.fram
ework/Headers/Files.h:3427: error: previous declaration of 'FSUnlockRange'
was here
MoreFilesX.c: In function 'GetTempBuffer':
MoreFilesX.c:2654: warning: comparison between signed and unsigned
make[4]: *** [MoreFilesX.o] Error 1
make[3]: *** [libs] Error 2
make[2]: *** [tier_2] Error 2
make[1]: *** [default] Error 2
make: *** [build] Error 2

Does anyone know how to resolve this error?