[gmx-users] install woe: Cannot find fftw3f library (Cygwin Bash)

Yang Ye leafyoung81-group at yahoo.com
Mon May 29 09:55:50 CEST 2006

Ralf B. Lukner wrote:
> During the ./configure of gromacs on my Cygwin Bash Shell, I get the 
> following error:
> configure: error: Cannot find fftw3f library
> I have installed fftw3, but evidently not to the satisfaction of 
> gromacs.  I put the fftw3.h in usr/local/include, and that enabled me 
> to make it past the fftw3.h.  I put the libfftw3*.dll's in 
> user/local/lib, but maybe that's not where they go.  The fftw site 
> acts like there is nothing special to installing fftw (just download 
> and unzip).
> Any help would be appreciated.
> --Ralf
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Gromacs needs floating-precision version of fftw3 while fftw3 defaults 
to double-precision. Re-build fftw3 with support for single-precision.

Yang Ye

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