Mac OSX make

[ajstone]

Commoncpp developers,

I am trying to build Commoncpp 2 on OSX with GCC 3.1.  It fails during 
the make with the following:

ld -r -o ccgnu2.lo thread.lo mutex.lo semaphore.lo threadkey.lo 
friends.lo event.lo slog.lo dir.lo file.lo inaddr.lo peer.lo port.lo 
socket.lo network.lo serial.lo mempager.lo keydata.lo dso.lo 
exception.lo process.lo urlstring.lo getopt.lo getopt1.lo
ld: thread.lo bad magic number (not a Mach-O file)
ld: mutex.lo bad magic number (not a Mach-O file)
ld: semaphore.lo bad magic number (not a Mach-O file)
ld: threadkey.lo bad magic number (not a Mach-O file)
ld: friends.lo bad magic number (not a Mach-O file)
ld: event.lo bad magic number (not a Mach-O file)
ld: slog.lo bad magic number (not a Mach-O file)
ld: dir.lo bad magic number (not a Mach-O file)
ld: file.lo bad magic number (not a Mach-O file)
ld: inaddr.lo bad magic number (not a Mach-O file)
ld: peer.lo bad magic number (not a Mach-O file)
ld: port.lo bad magic number (not a Mach-O file)
ld: socket.lo bad magic number (not a Mach-O file)
ld: network.lo bad magic number (not a Mach-O file)
ld: serial.lo bad magic number (not a Mach-O file)
ld: mempager.lo bad magic number (not a Mach-O file)
ld: keydata.lo bad magic number (not a Mach-O file)
ld: dso.lo bad magic number (not a Mach-O file)
ld: exception.lo bad magic number (not a Mach-O file)
ld: process.lo bad magic number (not a Mach-O file)
ld: urlstring.lo bad magic number (not a Mach-O file)
ld: getopt.lo bad magic number (not a Mach-O file)
ld: getopt1.lo bad magic number (not a Mach-O file)

What is wrong with my ld to cause this?  Also reporting this as a bug.

Full GCC version string: gcc (GCC) 3.1 20020420 (prerelease)
OS: Darwin 6.6/OS 10.2.6