gfortran for Mac OS X Leopard (10.5)

[Angus Macnab]

Hello,

I've been running gfortran on my Intel Mac for several months and it
seems to have be working well.  However I recently updated to Leopard
and now gfortran seems not to work.  I have installed a new binary
file from here: http://hpc.sourceforge.net/ (e.g. this one:
http://prdownloads.sourceforge.net/hpc/gcc-intel-leopard-bin.tar.gz?download).

The error I am getting follows:

prompt$ gfortran local.f
/usr/bin/ld: warning unknown -macosx_version_min parameter value:
10.5.0 ignored (using 10.4)
/usr/bin/ld: can't locate file for: -lcrt1.10.5.o
collect2: ld returned 1 exit status
prompt$

Not sure what is going wrong, but would appreciate some advice.

Thanks for your help.