Date: Wed, 2 Jun 2004 12:43:03 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Edd <list@arameus.net> Cc: freebsd-questions@freebsd.org Subject: Re: OSVERSION Message-ID: <20040602114303.GB13060@happy-idiot-talk.infracaninophile.co.uk> In-Reply-To: <200406021108.i52B8a121264@server1.web-mania.com> References: <200406021108.i52B8a121264@server1.web-mania.com>
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On Wed, Jun 02, 2004 at 12:08:36PM +0100, Edd wrote:
> Couple of quick queries.
>=20
> a) How might i find my OSVERSION. I have tried echo $OSVERSION.
The standard way of doing this is:
% uname -r
There's also:
% sysctl kern.osreldate
or in the special case of dealing with ports, you can just run:
% make -VOSVERSION
in any port directory.
=20
> b) I am trying to compile ardour (manually) . It tells me that I need
> posix threads support. What do I need to install?
The answer depends on what version of FreeBSD you are running.
For 4.x: add -D_THREAD_SAFE to the compile flags when compiling the
code, and add -pthread at the linking stage.
For 5.x at or earlier than about 5.2 use -D_THREAD_SAFE on
compilation, but add -lc_r to the link flags.
For 5.x after that, no extra compile flags are necessary, but you
should add -lpthreads to the link line.
The precise bounduaries where those sets of flags change can be
obtained from /usr/port/Mk/bsd.ports.mk:
.if ${OSVERSION} < 500016
PTHREAD_CFLAGS?=3D -D_THREAD_SAFE
PTHREAD_LIBS?=3D -pthread
.elif ${OSVERSION} < 502102
PTHREAD_CFLAGS?=3D -D_THREAD_SAFE
PTHREAD_LIBS?=3D -lc_r
.else
PTHREAD_CFLAGS?=3D
PTHREAD_LIBS?=3D -lpthread
.endif
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks
Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey Marlow
Tel: +44 1628 476614 Bucks., SL7 1TH UK
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