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Re: problem with fftw (probaly easy to solve)


Claudio Bley wrote:

>>>>>>"Olivier" == Olivier Ricordeau <olivier.ricordeau@wanadoo.fr> writes:
>>>>>>
> 
>     Olivier> Hi all!  I'm making a little DSP program that uses the
>     Olivier> FFTW librariy to do Fourier's transforms. I've made a
>     Olivier> #include <rfftw.h> in my C source code and when I try to
>     Olivier> compile here is what I get:
> 
>     Olivier> -----------------------------------------------------------------------
> 
>     Olivier> [olivier@localhost c]$ gcc -Wall -ansi -o wav2tab
> [snip]
>     Olivier> Could someone help me with this problem? It looks like
>     Olivier> the answer is pretty simple but I don't have it :-)
> 
> You also need to link with the fftw library:
> 
> gcc -Wall -ansi -o wav2tab wav2tab.c -lfftw
> 
> Claudio
> 
> 



It gives the same result... (now I use gcc 3)


[olivier@localhost c]$ gcc-3.0.1 -Wall -ansi -o wav2tab wav2tab.c -lfftw
/home/olivier/tmp/ccuQJWCn.o: In function `main':
/home/olivier/tmp/ccuQJWCn.o(.text+0x2a): undefined reference to 
`rfftw_create_plan'
/home/olivier/tmp/ccuQJWCn.o(.text+0x91): undefined reference to 
`rfftw_destroy_plan'
/home/olivier/tmp/ccuQJWCn.o(.text+0x15d): undefined reference to 
`rfftw_one'
/home/olivier/tmp/ccuQJWCn.o(.text+0x278): undefined reference to 
`rfftw_destroy_plan'
collect2: ld returned 1 exit status
[olivier@localhost c]$


-------------------------------------------------------------------

I've also tried with -lrfftw and it's worse:

[olivier@localhost c]$ gcc-3.0.1 -Wall -ansi -o wav2tab wav2tab.c -lrfftw
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_die'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_make_node_hc2hc'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_make_node_hc2real'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftwnd_work_size'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_destroy_plan_internal'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftwnd_create_plans_specific'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_make_empty_table'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_make_plan'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_free'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_fprint_plan'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_factor'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_complete_twiddle'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_malloc'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftwnd_destroy_plan'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftwnd_create_plan_aux'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_estimate_node'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_lookup'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_gettimeofday_get_time'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_destroy_table'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftwnd_create_plans_generic'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_wisdom_lookup'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_make_node_real2hc'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_reverse_int_array'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_pick_better'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftwnd_new_plan_array'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_make_node_rgeneric'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_wisdom_add'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftwnd_fprint_plan'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_gettimeofday_time_diff'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_use_plan'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw_insert'
/usr/lib/gcc-lib/i586-mandrake-linux-gnu/3.0.1/../../../librfftw.so: 
undefined reference to `fftw'
collect2: ld returned 1 exit status
[olivier@localhost c]$


Please help I'm a beginner in C and next week I have to present this 
program to my teachers...

-- 
|   -=Olivier RICORDEAU=-  |   It is rumored that someone once asked   |
|        Info Spé C2       |Dr. Bellman how to tell the exercises apart|
|     EPITA Promo 2005     |from the research problems, and he replied,|
|olivier.ricordeau@epita.fr| "If you can solve it, it is an exercise;  |
|       ICQ: 65452304      |    otherwise it's a research problem."    |
|   Phone: 06-86-72-08-52  | D.Knuth, "The Art Of Computer Programming"|


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