Libpcap 1.6.2 can't be installed without bison

[lubodiakov@…]

I see no mention of bison in the libpcap portfile, yet it won't install without it. Perhaps it should be added as a dependency? Something like:

depends_build       port:bison

I'm also attaching the main.log that was output when it failed to build libpcap.

After installing bison, libpcap installed no problem.

[lubodiakov@…]

Log from failed build of libpcap when bison is missing

[ryandesign (Ryan Carsten Schmidt)]

Seems straightforward enough. What do you think, Marius?

[Schamschula (Marius Schamschula)]

I guess Apple's bison is too old…

Portfile.diff attached.

[ryandesign (Ryan Carsten Schmidt)]

If this is a build failure, then we don't need to increase the port's revision.

I see we do have ​binary packages for libpcap; perhaps the bison on Snow Leopard and newer is new enough, but the one on Leopard (which this user is using) and earlier is too old, in which case declaring the dependency is a good idea.

[Schamschula (Marius Schamschula)]

Ryan,

Good point regarding the unecessary revision bump. Updated diff file attached.

On my Leopard box:

marius$ /usr/bin/bison --version
bison (GNU Bison) 2.3
Written by Robert Corbett and Richard Stallman.

However, on my Yosemite machine

marius$ /usr/bin/bison --version
bison (GNU Bison) 2.3
Written by Robert Corbett and Richard Stallman.

while

marius$ /opt/local/bin/bison --version
bison (GNU Bison) 2.7.12-4996
Written by Robert Corbett and Richard Stallman.

So bison for Snow Leopard and above is the same as that for Leopard! The GPL 3 thing stripes again.

[Schamschula (Marius Schamschula)]

In 861065b2c687449e7ed46dc9ac6a4d5dabf30a0b/macports-ports:

libpcap: add bison as build dependency

Closes: #45620