[Bug 238220] security/snort

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238220

            Bug ID: 238220
           Summary: security/snort
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: zi at FreeBSD.org
          Reporter: bmeeks8 at bellsouth.net
          Assignee: zi at FreeBSD.org
             Flags: maintainer-feedback?(zi at FreeBSD.org)

There can be an issue created by ambiguous use of 'yacc' instead of 'bison'
when compiling the target-based modules in the Snort binary.  If 'yacc' is
used, then the resulting binary will fail to read Host Attributes table XML
files. The code will report a fatal syntax error and exit even when the XML
file is actually properly formatted.  When 'bison' is used instead in the same
builder environment, the resulting Snort binary will properly read the XML file
for the Host Attributes table.

I was able to prevent this issue from happening by adding 'bison' to the USES=
line in the Snort Makefile.  This forces the compiler to use 'bison' during the
build.

Suggest adding 'bison' to the USES= line in the Makefile as it appears the
compilation process produces a faulty Snort binary when 'yacc' is used on
FreeBSD.  It seems 'yacc' can be the default in some FreeBSD build environments
and will be used when no preference is specified in the Makefile.

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