K 10
svn:author
V 4
bapt
K 8
svn:date
V 27
2020-03-10T14:20:25.461336Z
K 7
svn:log
V 511
Create a bison wrapper on top of base byacc

The wrapper deals with various simple incompatibilities between byacc and bison:
* first deals with --version which might often be called
* --verbose and -v are ignored
* normally yacc is called like this: yacc [options] input, but with GNU programs like bison
the input can be mixed in the middle of the arguments, unmangle that

Add a new 'wrapper' argument to USES=bison use the wrapper

Reviewed by:	mat
Differential Revision:	https://reviews.freebsd.org/D24017

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