I get an error every time I try to install fluidsim. It seems that it is due to the library fft3w. I checked this library, and it is well installed on the system. The error is the following:

/usr/bin/ld: cannot find -lfftw3f
/usr/bin/ld: cannot find -lfftw3l
/usr/bin/ld: cannot find -lfftw3_threads
/usr/bin/ld: cannot find -lfftw3f_threads
/usr/bin/ld: cannot find -lfftw3l_threads
collect2: error: ld returned 1 exit status
error: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
Makefile:4: recipe for target 'develop' failed
make: *** [develop] Error 1
(Env) mikel@Miguel:~/Env/fluidsim$ 

I could not figure out what is the problem. Do you have any idea what's the matter? Thank you for the help.


(Env) mikel@Miguel:~/Env/fluidsim$ dpkg -l|grep libfftw3
ii  libfftw3-double3:amd64                      3.3.4-2ubuntu1                                              amd64        Library for computing Fast Fourier Transforms - Double precision
ii  libfftw3-single3:amd64                      3.3.4-2ubuntu1                                              amd64        Library for computing Fast Fourier Transforms - Single precision
  • What version of Ubuntu are you using? please edit your question to include the output of dpkg -l | grep libfftw3 Oct 12, 2016 at 20:16

1 Answer 1


It looks like you don't have all of the libfftw3 component packages installed - perhaps because you installed libfftw3-single3 and libfftw3-double3 instead of the complete libfftw3-dev development package.

Try (re)installing libfftw3-dev

sudo apt install --reinstall libfftw3-dev

and if that doesn't work, try installing the sub-packages directly

sudo apt install --reinstall libfftw3-long3 libfftw3-single3
  • Sorry for the delay in the response! I had personal issues!! I tried what you told me and it worked!! Thanks for the help
    – mikel
    Oct 28, 2016 at 18:52

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