On 01/11/2007, at 19:46, Adam Leventhal wrote:
> The plan was that including <sys/unistd.h> would conditionally define
> _DTRACE_VERSION if USDT was available, but the Apple folks don't
> seem to
> have implemented this (though the FreeBSD folks have, I think). I
> suppose
> you could determine if DTrace exists on the system by doing
> something like
> this and checking the exit status:
>
> dtrace -n BEGIN -e
>
> You'll need to include a special-casse for Mac OS X until their -G
> does
> something.
FWIW, for the Tcl USDT provider, I test for presence of /usr/include/
sys/sdt.h and /usr/sbin/dtrace in configure to determine if DTrace is
available; and I only generate a makefile dependency on the -G
objectfile when not running on Darwin:
http://rutherglen.ics.mq.edu.au/fisheye/changelog/Tcl/tcl?
cs=MAIN:das:20070913152706
http://sourceforge.net/support/tracker.php?aid=1793984
Cheers,
Daniel
--
** Daniel A. Steffen **
** <mailto:[EMAIL PROTECTED]> **
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