On Athena 9.4 (rhel4):
./configure --prefix=/afs/sipb.mit.edu/project/git/builds/curl-7.20.0/common --exec-prefix=/afs/sipb.mit.edu/project/git/builds/curl-7.20.0/i386_rhel4 --with-gssapi=/usr/athena
make
make install

On Athena 9.4 (solaris, sun.dialup):
./configure --prefix=/afs/sipb.mit.edu/project/git/builds/curl-7.20.0/common --exec-prefix=/afs/sipb.mit.edu/project/git/builds/curl-7.20.0/sun4x_510 --with-gssapi=/usr/athena --enable-ldaps
make
make install

for each arch:
ln -s ../common/* .