Re: macro which returns found compiler for given language?

[Diab Jerius]

On Mon, May 11, 2015 at 2:31 PM, Nick Bowler <address@hidden> wrote:
> On 2015-05-11 13:35 -0400, Diab Jerius wrote:
>> On Mon, May 11, 2015 at 1:14 PM, Diab Jerius <address@hidden> wrote:
>> > On Mon, May 11, 2015 at 12:40 PM, Daily, Jeff A <address@hidden> wrote:
>> >> These output variables are documented in the autoconf manual under
>> >> AC_PROG_CC, AC_PROG_CXX, AC_PROG_F77, AC_PROG_FC, respectively.
>> >
>> > D'oh! You know, I think I knew that once upon a time.
>>
>> Unfortunately, after further thought, the output variables aren't
>> sufficient for what I need.
>>
>> As the code cannot assume which flavor of Fortran is being tested,
>> without more information it cannot choose between F77 or FC.
>>
>> If the current language were known, the code could choose
>> appropriately, but the only macro available (AFAIK)  to query the
>> current language is AC_LANG_ASSERT, which is inappropriate in this
>> context.  It'd be much cleaner if one could get the compiler for the
>> current language, or have _AC_CC exposed as part of the public API.
>
> There is AC_LANG_CASE:
>
>   AC_LANG_CASE(
>     [Fortran], [...do stuff with $FC],
>     [Fortran 77], [...do stuff with $F77],
>     [neither option])
>
> It seems this function is not documented in the manual, but it probably
> should be.

Thanks, that works nicely.

Diab