[Bug fortran/36721] Compiler aborts with no message when libgmp and/or libmpfr are missing

["w6ws at earthlink dot net" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #3 from w6ws at earthlink dot net  2008-07-03 17:57 -------
Subject: Re:  Compiler aborts with no message when libgmp
 and/or libmpfr are missing

pinskia at gcc dot gnu dot org wrote:
> ------- Comment #2 from pinskia at gcc dot gnu dot org  2008-07-03 17:46 -------
> This is an OS issue really.  Or maybe a distribution of GCC issue which is not
> a bug which the FSF should worry about.  That is the binary distributers did
> not distribute GMP/MPFR with GCC or did not compiler GMP/MPFR as being static.

In this case, Tobias is the 'binary distributor'...

(And I really appreciate his efforts!)

> I think we can declare this as invalid based on that fact and the fact we don't
> support binary  distributions.

Not user-friendly.

I can offer two suggestions:

1.) If shared libs are being used, try doing a dlopen on the library to
make sure it is available.  If it is not available, an error message can
be printed before aborting.

2.) A signal handler can be written to catch the jump into nowhere.
Again, an error message can be printed.

Walter


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36721