6 Jun
2005
6 Jun
'05
3:40 p.m.
On Mon, 06 Jun 2005 15:24:32 +0200
Olivier Guilyardi <ml(a)xung.org> wrote:
Hi Florian,
Hi!
I'm running Debian Sarge with a 2.4 kernel, and
this libdsp which
jack_convolve depends on is a real problem. libdsp needs nptl threading
style, and that seems to require linux 2.6. I don't know if Debian
supports nptl either.. I just can't compile libdsp.
I'm not going to switch to 2.6 now. I don't have enough time.
I tried removing the "DEFS += -DUSE_NPTL" line from the
libdsp/DynThreads/Makefile, but it ends up complaining about a Mutex.hh
file which does not seem to exists anywhere in the Debian distribution.
Before all of that, I tried to use the libdsp0 and libdsp-dev Debian
packages, but these are both from the 3.3.6 libdsp release, which
jack_convolve does not seem to recognize.
For quick tests without libDSP you can tweak the jack_convolve Makefile
a little:
uncomment the
#COMPILE_FLAGS += -DC_CMUL
line and remove "-ldsp" from the LINK_FLAGS line. This will use an
unoptimized C complex multiplication implementation. jack_convolve will
use around 10-20% more cpu than with the libDSP implementation.
I also put the libDSP author on the CC list. Maybe he knows more about
your libDSP-specific problems. Indeed the version packaged with your
debian is too old. You need at least libDSP version 5.0.1 (earlier
versions miss the complex multiply and add function which is needed by
jack_convolve)..
Regards,
Flo
--
Palimm Palimm!
http://affenbande.org/~tapas/