Does not appear to work at all in Maverick.

—–Using your method just bombs:
$ ./configure
setting prefix… /usr/local
checking system type… Interestink. OS X
checking for a C compiler… /usr/bin/gcc
checking to see if /usr/local/bin/md5sum is Microbrew… does not exist
checking to see if /usr/local/bin/sha1sum is Microbrew… does not exist
checking to see if /usr/local/bin/ripemd160sum is Microbrew… does not exist
looking for OpenSSL headers ‘openssl/md5.h’… Cannot find it.
Please run this script as such: SSLINCPATH= ./configure
$ make
Makefile:27: sys-setup.mk: No such file or directory
Please run ‘configure’ first.

make: /bin/false: No such file or directory
make: *** [sys-setup.mk] Error 1

——Using mac ports returns nothing:

$ sudo port install md5sum
Warning: port definitions are more than two weeks old, consider using selfupdate
Error: Port md5sum not found
To report a bug, see

$ sudo port install sha1sum
Warning: port definitions are more than two weeks old, consider using selfupdate
Error: Port sha1sum not found
To report a bug, see

$ which md5sum
$ which sha1sum