[libgfortran,patch] New autoconf test

[Andreas Schwab]

Paolo Bonzini <paolo.bonzini@lu.unisi.ch> writes:

> I think something like this should work too.  Autoconf provides macros for
> compile tests:
>
> AC_MSG_CHECKING([whether the GNU Fortran compiler is working])
> AC_COMPILE_IFELSE([[
>     program foo
>       real, parameter :: bar = sin(12.34)
>     end program foo]], ,
>     [AC_MSG_RESULT([yes])],
>     [AC_MSG_RESULT([no])
>      AC_MSG_ERROR([GNU Fortran is not working; please report a bug in
> http://gcc.gnu.org/bugzilla, attaching `pwd`/config.log])

Except that you have to switch the language to Fortran, by putting it
between AC_LANG_PUSH(Fortran) and  AC_LANG_POP(Fortran).

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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