[MacPorts] #61058: gcc6 @6.4.0: dyld: Library not loaded: /opt/local/lib/libisl.15.dylib (was: problem fortran)

[MacPorts]

#61058: gcc6 @6.4.0: dyld: Library not loaded: /opt/local/lib/libisl.15.dylib
---------------------------+--------------------
  Reporter:  annaguelcher  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  gcc6          |
---------------------------+--------------------
Changes (by ryandesign):

 * keywords:  fortran gcc compiling =>
 * port:   => gcc6
 * milestone:  MacPorts 2.7.0 =>


Old description:

> Hi there. I have run the following commands:
>
> sudo port upgrade outdated
>
> mpirun --version
>
> sudo port -f activate libgcc10
>
> (and then I deactivated). I have a gfortran error, though(see below).
> Could you please where I should even check
>
> (because I
>

> staff-net-nw-2010:TEST annagulcher$ gfortran -fopenmp openmp-test.f90
> dyld: Library not loaded: /opt/local/lib/libisl.15.dylib
>   Referenced from: /opt/local/libexec/gcc/x86_64-apple-
> darwin17/6.4.0/f951
>   Reason: image not found
> gfortran: internal compiler error: Abort trap: 6 (program f951)
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <https://trac.macports.org/newticket> for instructions.
> staff-net-nw-2010:TEST annagulcher$

New description:

 Hi there. I have run the following commands:

 {{{
 sudo port upgrade outdated
 mpirun --version
 sudo port -f activate libgcc10
 }}}

 (and then I deactivated). I have a gfortran error, though(see below).
 Could you please where I should even check

 (because I

 {{{
 staff-net-nw-2010:TEST annagulcher$ gfortran -fopenmp openmp-test.f90
 dyld: Library not loaded: /opt/local/lib/libisl.15.dylib
   Referenced from: /opt/local/libexec/gcc/x86_64-apple-darwin17/6.4.0/f951
   Reason: image not found
 gfortran: internal compiler error: Abort trap: 6 (program f951)
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <https://trac.macports.org/newticket> for instructions.
 staff-net-nw-2010:TEST annagulcher$
 }}}

--

Comment:

 The error message shows that you have gcc6 @6.4.0, which is years out of
 date. (We [changeset:cdcf370138f689543c608e7066077b35e4615d80/macports-
 ports updated gcc6 to 6.5.0 in 2018].) And it failed to work because it is
 linked to an outdated version of isl which is no longer present.

 The fix is to upgrade to gcc6 @6.5.0. I'm not sure why running `sudo port
 upgrade outdated` didn't do that for you.

 What do you see when you run `port installed gcc6`?

 Why did you have to `sudo port -f activate libgcc10`? You should not need
 to force activate anything.

-- 
Ticket URL: <https://trac.macports.org/ticket/61058#comment:1>
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