[gmx-users] Installation problem:fftw3f lib. not found.
shobhit.kudesia at gmail.com
Wed Jul 1 03:19:47 CEST 2009
I installed fftw as follows (creating single- and double-precision
./configure --enable-threads --enable-float --prefix=/home/kudesias/fftw
./configure --enable-threads --prefix=/home/kudesias/fftw
I also used
export LDFLAGS=-L/home/kudesias/fftw/lib ( Initially I used I in place of L
so I corrected it)
On using the configure script
I get the following error then
checking how to hardcode library paths into programs... immediate
checking for special C compiler options needed for large files... no
checking for _FILE_OFFSET_BITS value needed for large files... no
checking for _LARGEFILE_SOURCE value needed for large files... 1
checking for sqrt in -lm... yes
checking for fftw3.h... configure: error: Cannot find the default external
FFT library (fftw3).
I will be glad if you can help with this.
On Thu, Jun 25, 2009 at 2:08 AM, Florian Dommert <
dommert at icp.uni-stuttgart.de> wrote:
> * Shobhit Kudesia <shobhit.kudesia at gmail.com> [2009-06-25 01:55:00 +0530]:
> Hi ,
>> During the ./configure of gromacs on my Bash Shell, I get the following
>> configure: error: Cannot find fftw3f library
>> I have installed fftw3 files in a directory other than usr/local. I
>> have installed fftw3 both with double and single precision but I still
>> get the error while configuration of GROMACS for default single
>> precision. I have also included the libraries usinG CPPFLAGS &
> If you have installed the single version of FFTW3 and supply the
> corresponding CPPFLAGS and LDFLAGS to configure then the script will
> find the libraries. So two errors are very likely though we do not
> anything about your installation:
> * a small typo in the configure line ( if you present it here, everybody
> judge this )
> * the installation of the single precision fftw3f failed for any reasons
>> Any help will be appreciated
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> Florian Dommert
> Institute for Computational Physics
> University Stuttgart
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With Warm Regards
3rd year Undergraduate
Department of Biotechnology
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