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Forum Topic - fftw shared lib:
   
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michel pacilli
05/29/2008 7:01 PM
post8585
fftw shared lib   
Hi,

I'm a new QNX user, pleased by the clean and simplicity of this plateform.

I try to build the library FFTW from scratch (3.2.1 dwld from fftw.org), shortly because I need to play with options/
configurations to find the best deal for my  
application... and well evrything is fine while I need a static lib .a, but I can't obtain ashared one (.so).

Yes I use configure --enable-shared <options> ... and it doesn't work. The configure script is quiet difficult for me, 
and the libtool too ...

I saw libfftw.so somewhere in this forum, so perhaps someone could tell me how to get it from the sources.

regards,

Michel PACILLI
bogdan celer
06/01/2008 7:22 AM
post8632
Re: fftw shared lib   
find in configure line:
nto-qnx*)
  lt_cv_deplibs_check_method=unknown
  ;;
and replace to
nto-qnx*)
  lt_cv_deplibs_check_method=pass_all
  ;;
I`m trying compiling  fftw-3.2alpha3 and library is:
# ls -l .libs
total 8103
drwxrwsr-x  2 root      100            4096 Jun 01 13:09 .
drwxrwsrwx 19 1004      100            4096 Jun 01 13:09 ..
-rw-rw-r--  1 root      100         2572378 Jun 01 13:09 libfftw3.a
lrwxrwxrwx  1 root      100              14 Jun 01 13:09 libfftw3.la -> ../libfftw3.la
-rw-rw-r--  1 root      100             803 Jun 01 13:09 libfftw3.lai
lrwxrwxrwx  1 root      100              17 Jun 01 13:09 libfftw3.so -> libfftw3.so.3.2.1
lrwxrwxrwx  1 root      100              17 Jun 01 13:09 libfftw3.so.3 -> libfftw3.so.3.2.1
-rwxrwxr-x  1 root      100         1564962 Jun 01 13:09 libfftw3.so.3.2.1
michel pacilli
06/02/2008 3:14 PM
post8662
Re: fftw shared lib   
Thank you all for your answers !

I'll follow your advices tomorrow, in front of my station !
thank you again, and I report you as soon as possible :)

Michel Pacilli
Colin Burgess(deleted)
06/02/2008 9:53 AM
post8644
Re: fftw shared lib   
I haven't played with libtool for years, but the support of shared libs for
a particular OS is
detected somewhere in there.  You may have to hack it to say "QNX can do
shared libs"

michel pacilli wrote:
> Hi,
> 
> I'm a new QNX user, pleased by the clean and simplicity of this plateform.
> 
> I try to build the library FFTW from scratch (3.2.1 dwld from fftw.org),
shortly because I need to play with options/configurations to find the best
deal for my  
> application... and well evrything is fine while I need a static lib .a,
but I can't obtain ashared one (.so).
> 
> Yes I use configure --enable-shared <options> ... and it doesn't work. The
configure script is quiet difficult for me, and the libtool too ...
> 
> I saw libfftw.so somewhere in this forum, so perhaps someone could tell me
how to get it from the sources.
> 
> regards,
> 
> Michel PACILLI
> 
> 
> _______________________________________________
> General
> http://community.qnx.com/sf/go/post8585
> 

-- 
cburgess@qnx.com
Sean Boudreau(deleted)
06/02/2008 9:55 AM
post8645
Re: fftw shared lib   
We've done some of that in pkgsrc but it doesn't sound
like he's using pkgsrc.

-seanb

On Mon, Jun 02, 2008 at 09:54:00AM -0400, Colin Burgess wrote:
> I haven't played with libtool for years, but the support of shared libs for
> a particular OS is
> detected somewhere in there.  You may have to hack it to say "QNX can do
> shared libs"
> 
> michel pacilli wrote:
> > Hi,
> > 
> > I'm a new QNX user, pleased by the clean and simplicity of this plateform.
> > 
> > I try to build the library FFTW from scratch (3.2.1 dwld from fftw.org),
> shortly because I need to play with options/configurations to find the best
> deal for my  
> > application... and well evrything is fine while I need a static lib .a,
> but I can't obtain ashared one (.so).
> > 
> > Yes I use configure --enable-shared <options> ... and it doesn't work. The
> configure script is quiet difficult for me, and the libtool too ...
> > 
> > I saw libfftw.so somewhere in this forum, so perhaps someone could tell me
> how to get it from the sources.
> > 
> > regards,
> > 
> > Michel PACILLI
> > 
> > 
> > _______________________________________________
> > General
> > http://community.qnx.com/sf/go/post8585
> > 
> 
> -- 
> cburgess@qnx.com
> 
> _______________________________________________
> General
> http://community.qnx.com/sf/go/post8644
>
michel pacilli
06/04/2008 4:02 PM
post8779
Re: fftw shared lib   
OK ! Ca marche !

the trick in the configure script is ok :)

thanks again for your answer

I've found something that look strange with this lib ... if I plan a 13*512 ffts (ie 13 fft of 512 points) with 
plan_many with th FFTW_PATIENT option ... it crash ! for the others size i've tested and other option it works very well
 ...

strange ?!

Michel PACILLI

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