In case this is useful to someone - After poking around a bit I've managed to compile sendmail-8.12.1 on 7.2 I first compiled the Berkeley DB 3.1.17 from the sources ...
From the db-3.1.17 source tree:
cd build_unix ../dist/configure --enable-shared make make install Then from the sendmail-8.12.1 source tree: Edit devtools/Site/site.config.m4 (or whatever you've called it - see the README in that dir) to include the following: APPENDDEF(`confMAPDEF', `-DNEWDB') APPENDDEF(`confINCDIRS', `-I/usr/local/BerkeleyDB.3.1/include') APPENDDEF(`confLIBDIRS', `-L/usr/local/BerkeleyDB.3.1/lib') Then (from the top-level directory) sh Build -c Then follow the rest of the INSTALL doc instructions. All seems to have compiled and installed OK, but as yet I haven't tested it in a running environment.