[Pw_forum] Redhat linux PCs ESPRESSO compilation

[Davide Ceresoli]

Miriam Marques wrote:

>  I do not know if I should  install another fftw library. I was trying 
> to install a fftw-2.1.5 library (I downloaded it from http://www.fftw.org/)
> , but I do not know if it is suitable for Redhat linux.
> When using it, the line:
> FFT_LIBS       = -L/Home/mmarques/fftw-2.1.5/lib -lfftw
> appears,
> but when executing make all, the error:
> 
> make[1]: Entering directory `/phys/linux/mmarques/espresso-3.2/iotk'
> cd src ; make libiotk.a
> make[2]: Entering directory `/phys/linux/mmarques/espresso-3.2/iotk/src'
> cpp -P -traditional -D__FFTW -I../include 
> -I/Home/mmarques/fftw-2.1.5/include /Home/mmarques/fftw-2.1.5/include 
> iotk_base.f90 -o iotk_base.F90
> cc1: error: output filename specified twice
Can you inspect the file make.sys?
Most likely it will contain a line:

IFLAGS         = -I../include -I/Home/mmarques/fftw-2.1.5/include
                  /Home/mmarques/fftw-2.1.5/include

So, delete the second occurrence of '/Home/mmarques/fftw-2.1.5/include'.

We'll try to fix this configure error in the CVS and in the next release.

HTH.

Davide