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Miscellaneous flex stuff.  The following have been tested using flex 2.4:	- debflex.awk, an awk script for anotating flex debug output.	  It presently only works with gawk, not with "old" or "new" awk	  (I haven't tried "mawk").	- testxxLexer.l, a sample C++ program that uses flex's scanner	  class option ("-+").	- fastwc/, a subdirectory containing examples of how to use flex	  to write progressively higher-performance versions of the Unix	  "wc" utility.The following are all out-of-date with respect to flex release 2.4 (andin general up-to-date for flex 2.3):	- flex.texinfo, a "texinfo" version of the flexdoc documentation	  for flex release 2.3.	- Atari/Atari.patches, patches for porting flex to the Atari and	  to Minix.	- A number of notes and Makefiles for compiling flex under MS-DOS,	  in the MSDOS/ subdirectory.	- Notes on building flex for MVS, in the MVS/ subdirectory.	- Notes on building flex for the Macintosh using Think-C,	  in the Think-C/ subdirectory.	- Notes on building flex for VMS, in the VMS/ subdirectory.And the following is included for compatibility with some broken versionsof bison:	- alloca.c, a public-domain, mostly-portable version of the	  alloca() routine (used by bison's parsers) written by D. A. Gwyn.Many thanks to those who contributed these files.  Updated versions willbe appreciated!

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