Re: xlf95 does not accept "-D" from autoconf

[Christoffer Hirth]

Den 21. juni 2011 20:55, skrev Ralf Wildenhues:
> * Christoffer Hirth wrote on Tue, Jun 21, 2011 at 03:00:12PM CEST:
> > > Jim Edwards wrote:
> > > >     However on machines using IBM's fortran compiler (xlf90 or 95)
> > > >     compilation fails due to unsupported defined variables "-DPACKAGENAME"
> > > >     etc.
> > > >     On ibm this should be passed as -WF,-DPACKAGENAME.
> > > >
> > > >     How can I modify autotools behaviour, or simply skip these definitions
> > > >     (they are not used)?
> > > AC_FC_PP_DEFINE()  in recent autoconf versions handles this correctly.
> > AC_FC_PP_DEFINE seems to be included in commit
> > 8c2db1c128fbcee77530b813f45a575c37a0f10f
> > at 2. apr. 2011.
> >
> > The latest version however is dated 22. sep. 2010, so I would have to
> > build this from git?
> Right.
>
> > Are there no known solutions in latest stable?
> No, sorry; but the Autoconf Macro Archive has a similar macro IIRC.
> Also note that AC_FC_PP_DEFINE is not a full solution to the
> problem.  Automake still uses $(DEFS) instead of switching to a new
> variable like $(FCDEFS) or so, which Autoconf still needs to export.
Ok. I have currently just set
"DEFS = "
in every Makefile.am to ensure it is empty.

If possible it would perhaps be cleaner to include AC_FC_PP_DEFINE as a 
local macro (simply copy from commit),
and then set:
"FCDEFS = $DEFS
AC_SUBST([$DEFS])"

Would this work as a better solution?


-- Christoffer