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I am trying to run a package that strictly depends on Fortran 90, but after running its ./configure file it shows the following error:

configure: error: could not find Fortran 90 compiler

There are multiple sources for compiling Fortran 95, but not for 90.

Any suggestion?

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Fortran 95 is a superset of Fortran 90. A Fortran 95 compiler will quite likely be able to compile your Fortran 90 code.

To install the GNU Fortran compiler from kubuntu use:

sudo apt-get install gfortran

In fact, the Fortran 95 standard was just a minor upgrade from the Fortran 90 standard (unlike the change from Fortran 77 to Fortran 90).

  • It looks like I had to reboot the machine in order to get rid of that error. Anyways, It is useful to know that it is contained by f95, I didn't found that very explicitly. – Joshua Salazar Mar 5 '18 at 13:52
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    AFAIK, even a f90 compiler would switch to f77 mode when compiling a Fortran 77 source file. – Kusalananda Mar 5 '18 at 13:52
  • @JoshuaSalazar That does not make sense. Reboot the machine? Really? – Kusalananda Mar 5 '18 at 13:53
  • @Kusalananda Yes. Strange. – Joshua Salazar Mar 5 '18 at 14:03

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