cygwin and fftw3

[MacErich]

Hi all

Tried to link fftw3 in cygwin, but keep on getting error messages such as:

fftw3_prb.o:fftw3_prb.c:(.text+0x121): undefined reference to `_fftw_malloc'

As an alternative, I just used an example from the web, here
http://people.sc.fsu.edu/~jburkardt/c_src/fftw3/fftw3_prb.c

compile is using

$ gcc -lfftw3 fft -o fftw3_prb
fft-lib.o fftw3_prb.o

... and link it using
$ gcc -lfftw3 fftw3_prb.o -o fftw3_prb

thereby getting these error messages:

fftw3_prb.o:fftw3_prb.c:(.text+0x1e4): undefined reference to `_fftw_malloc'

Anybody any idea?

fftw3 is installed out of the box using cygwin, and as far as I can tell, the header file is found during compilation, but something is missing during linking, though I use -lfftw3.

Any help is appreciated.

Thanks

Erich