RE: macro which returns found compiler for given language?

[Daily, Jeff A]

> -----Original Message-----
> From: address@hidden [mailto:autoconf-
> address@hidden On Behalf Of Diab Jerius
> Sent: Monday, May 11, 2015 8:59 AM
> To: address@hidden
> Subject: macro which returns found compiler for given language?
> 
> I'm trying to determine the version of GNU Fortran by parsing the
> compiler's standard output when passed the --version option.
> 
> I cannot use AC_COMPILE_IFELSE, as the compiler doesn't generate an
> object file when passed --version, and AC_COMPILE_IFELSE requires that
> for success.
> 
> I've resorted to using the _AC_CC macro to get the name of the
> compiler so that I can execute it directly, but that's not good
> practice.
> 
> Is there a public macro which provides the compiler for a given language?

Why do you need an autoconf macro to provide this?

If a shell variable is sufficient, then use the following:

C -> $CC
C++ -> $CXX
Fortran77 -> $F77
Fortran -> $FC

These output variables are documented in the autoconf manual under AC_PROG_CC, 
AC_PROG_CXX, AC_PROG_F77, AC_PROG_FC, respectively.