Re: Comments on auto* macros

Re: Comments on auto* macros

[Brian Gough]

Hans Ekkehard Plesser writes:
 > But I must admit that (as an auto* layman), I am still quite confused
 > after reading these pages.  E.g., I just spent some half hour to find
 > out that the AM_PATH_GSL test has to come before the AC_LANG_CPLUSPLUS
 > switch, because the c++ compiler otherwise complains about an implicit
 > cast in line 74 of gsl.m4.  The same seems to hold for the inline
 > tests.  Is this ordering of tests absolutely trivial for anyone
 > experienced with autoconf?  If not, could you include a hint in the
 > documentation?

I think the macros had only been used with a C compiler not C++, so
that problem hadn't been encountered before.  I'll add that to the
documentation.

regards
Brian Gough

Re: Comments on auto* macros

[Christopher R. Gabriel]

    >> But I must admit that (as an auto* layman), I am still quite
    >> confused after reading these pages.  E.g., I just spent some
    >> half hour to find out that the AM_PATH_GSL test has to come
    >> before the AC_LANG_CPLUSPLUS switch, because the c++ compiler
    >> otherwise complains about an implicit cast in line 74 of
    >> gsl.m4.  The same seems to hold for the inline tests.  Is this
    >> ordering of tests absolutely trivial for anyone experienced
    >> with autoconf?  If not, could you include a hint in the
    >> documentation?

    Brian> I think the macros had only been used with a C compiler not
    Brian> C++, so that problem hadn't been encountered before.  I'll
    Brian> add that to the documentation.

Yep, sorry for that. I've wrote the AM_PATH_GSL using just a C
compiler, never tried with a C++. Sorry if my documentation patch
wasn't complete enough.

Regards,

--
Christopher

Comments on auto* macros

[Hans Ekkehard Plesser]

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Hi!

First of all, thanks to the GSL makers for including a chapter on how
to integrate GSL via autoconf/-make macros into other packages in the
documentation.  I haven't seen such service elsewhere.  

But I must admit that (as an auto* layman), I am still quite confused
after reading these pages.  E.g., I just spent some half hour to find
out that the AM_PATH_GSL test has to come before the AC_LANG_CPLUSPLUS
switch, because the c++ compiler otherwise complains about an implicit
cast in line 74 of gsl.m4.  The same seems to hold for the inline
tests.  Is this ordering of tests absolutely trivial for anyone
experienced with autoconf?  If not, could you include a hint in the
documentation?

Best regards,
Hans

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Dr. Hans Ekkehard Plesser             Tel.  :           +47 6494 8832
Physics Section / ITF                 Fax   :           +47 6494 8810
Agricultural University of Norway     e-mail: hans.plesser@itf.nlh.no
N-1432 Ã…s, Norway		      WWW   :    arken.nlh.no/~itfhep
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