add blib/* directories to @INC
+=item Fatal
+
+make errors in builtins or Perl functions fatal
+
=item Fcntl
load the C Fcntl.h defines
complex numbers and associated mathematical functions
+=item Math::Trig
+
+simple interface to parts of Math::Complex for those who
+need trigonometric functions only for real numbers
+
=item NDBM_File
tied access to ndbm files
=item Take care when changing a released module.
-Always strive to remain compatible with previous released versions
-(see 2.2 above) Otherwise try to add a mechanism to revert to the
+Always strive to remain compatible with previous released versions.
+Otherwise try to add a mechanism to revert to the
old behaviour if people rely on it. Document incompatible changes.
=back