[ANN] nyacc 0.81.0 released

[Matt Wette]

Nyacc 0.81.0 is released.   

This includes the following updates:
1) fix to parsing C comments (nyacc/lex.scm)
2) addition for parsing several GNU C extensions (e.g., asm, statement 
expressions)
3) fixed bug in cpp.scm where drain-input was used instead of string-get-all
4) in examples/../c99, updates to ffi-helper
5) much hacking on the C99 munging code (c99/util2.scm)
5) numerous other bug fixes

NYACC, for Not Yet Another Compiler Compiler!, is set of guile modules for
generating parsers and lexical analyzers.  It also provides sample parsers
and pretty-printers using SXML trees as an intermediate representation.

NYACC maturity is beta level.

NYACC is free software; the full source distribution is available through

tarball repository:
    https://download.savannah.gnu.org/releases/nyacc/

git repository:
    git://git.savannah.nongnu.org/nyacc.git

home page, project page, user's guide:
    http://www.nongnu.org/nyacc
    https://savannah.nongnu.org/projects/nyacc
    http://www.nongnu.org/nyacc/nyacc-ug.html

For support see:
    https://savannah.nongnu.org/support/?group=nyacc