From mboxrd@z Thu Jan  1 00:00:00 1970
From: mjw@redhat.com (Mark Wielaard)
Date: Tue, 12 Apr 2011 21:12:07 +0200
Subject: [ltt-dev] SystemTAP support in tracepoints
In-Reply-To: <20110412184835.GA11727@Krystal>
References: <20110410174444.GA30466@Krystal> <4DA3704C.8010502@redhat.com>
	<4DA380D5.80608@redhat.com> <20110412183555.GB11056@Krystal>
	<y0maafvia0y.fsf@fche.csb>  <20110412184835.GA11727@Krystal>
Message-ID: <1302635527.4057.9.camel@springer.wildebeest.org>

On Tue, 2011-04-12 at 14:48 -0400, Mathieu Desnoyers wrote:
> * Frank Ch. Eigler (fche at redhat.com) wrote:
> > How about just:
> > 
> > 
> > #define SDT_USE_VARIADIC
> > #include <sys/sdt.h>
> 
> How should support systems that don't have sdt.h ? Is there a define we
> could check ?

I have just been using the following configure check:

AC_CHECK_HEADER([sys/sdt.h], [SDT_H_FOUND='yes'],
                [SDT_H_FOUND='no';
                   AC_MSG_ERROR([systemtap support needs sys/sdt.h header])])

Which you can adapt to your needs with/without error message, including
an test to see if it fully works for your environment.