ftp.icm.edu.pl/1/vol/rzm2/gnu.old/non-gnu/flex

   BIN flex-2.4.2-2.4.3.diff.gz
   BIN flex-2.4.3-2.4.4.diff.gz
   BIN flex-2.4.4-2.4.5.diff.gz
   BIN flex-2.4.6-2.4.7.diff.gz
   BIN flex-2.5.1-2.5.2.diff.gz
   BIN flex-2.5.2-2.5.3.diff.gz
   BIN flex-2.5.3-2.5.4.diff.gz
   BIN flex-2.5.4-2.5.4a.diff.gz
   BIN flex-2.5.4a.tar.gz