The problems that come up with some compilers not handling the #line directive: http://www.meta-comm.com/engineering/boost-regression/cvs-head/developer/out... http://tinyurl.com/9jwue Can be worked around by not having the #line directives generated. All that's needed is adding the "-L" switch to have flex omit them. -- -- Grafik - Don't Assume Anything -- Redshift Software, Inc. - http://redshift-software.com -- rrivera/acm.org - grafik/redshift-software.com -- 102708583/icq - grafikrobot/aim - Grafik/jabber.org