[Pw_forum] Re: ld: cannot find -lfftw

stewart at cnf.cornell.edu stewart at cnf.cornell.edu
Wed Mar 15 21:22:59 CET 2006


Hi Anne, 

 Which compiler are you using for the installation?  If you are using the 
intel compilers then it usually complains when linking to libraries that are 
compiled with gnu compilers (gcc, g77).  One option would be to recompile 
fftw with the intel compilers and link to that version of fftw.  Hopefully, 
this will take care of your problem. 

Regards, 

Derek 


Anne P Shelton writes: 

> I am trying to install espresso-3.0 on an Intel server running Linux.
> It seems to configure fine and find the necessary library but then I get
> this error after I make all 
> 
> ld: skipping incompatible /usr/lib/libfftw.a when searching for -lfftw
> ld: cannot find -lfftw
> make[1]: *** [memory.x] Error 1 
> 
> I have installed the fftw 2.1.5 package. 
> 
> Any ideas. 
> 
> Thanks
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################################
Derek Stewart, Ph. D.
Scientific Computation Associate
250 Duffield Hall
Cornell Nanoscale Facility (CNF)
Ithaca, NY 14853
stewart (at) cnf.cornell.edu
(607) 255-2856 




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