Problems compiling Postgresql 8.0.3 on 10.4

Hi, i have just installed 10.4 on one of our machines and cannot get
past this error during make

gcc -no-cpp-precomp -O2 -Wall -Wmissing-prototypes -Wpointer-arith
-Wendif-labels -fno-strict-aliasing   -dynamiclib -install_name
/usr/local/pgsql/lib/libpq.4.dylib -compatibility_version 4
-current_version 4.0 -multiply_defined suppress  fe-auth.o fe-connect.o
fe-exec.o fe-misc.o fe-print.o fe-lobj.o fe-protocol2.o fe-protocol3.o
pqexpbuffer.o pqsignal.o fe-secure.o md5.o ip.o wchar.o encnames.o
noblock.o pgstrcasecmp.o thread.o  -L../../../src/port -lresolv   -o
libpq.4.0.dylib

/usr/bin/libtool: for architecture: cputype (16777234) cpusubtype (0)
file: -lSystem is not an object file (not allowed in a library)

make[3]: *** [libpq.4.0.dylib] Error 1

make[2]: *** [all] Error 2

make[1]: *** [all] Error 2

make: *** [all] Error 2