-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Hello Glenn,
En/na Glenn H Sembroski ha escrit:
> Hi,
> I have a problem trying to prepare a large simulation package, using
> mixed F90 and C++ routines, to compile and build under GCC (g++, and
> gfortran). The problem is I have a C++ function: Gauss() which is
> called from an F90 routine:
> x=gauss()
>
> This package was made able to build under the Intel fortran compiler by
> adding to the fortran file the Intel compile directive:
>
> !DEC$ ATTRIBUTES ALIAS:'Gauss' :: gauss
>
> I attempted to build this program using GCC where for F90 code the
> gfortran compiler option -fno-underscoring was used.
>
> Presently my fortran routine won't build. It gets the error:
>
> 485: undefined reference to `gauss'
>
> So, my question is, is there a way in GCC to enable the linker to find
> the C++ 'Gauss' method?
I don't know if the linker supports for this directly. But you can try
with the function attribute 'alias("target")' which is documented in
[1]. It creates a new name for the same routine, so you can call it
through the two names (the original, and the aliased).
In your case, you should define in your C++ file an alias to "Gauss"
which is called "gauss".
Besides, IIRC, ICC also supports this function attribute, so you
should be able to apply it transparently.
[1] http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html
Regards.
> Thanks,
> Dr. Glenn Sembroski
> Physics Dept.,Purdue University
> sembrosk@xxxxxxxxxx
>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.9 (GNU/Linux)
iEYEARECAAYFAkuyJs4ACgkQwMPeuqUCg9wTcQCffv1P6zfesFqNNB5IAfQc8JV8
1mAAnjz0pzkWaOSYUsox1t0+rqUqqdah
=c9fe
-----END PGP SIGNATURE-----
