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Subject: Re: Autoconf fooled by AC_FC_LINE_LENGTH
To: cygwin AT cygwin DOT com
References: <8fa2a8a5-fb86-02c9-5cd0-521a9680abe3 AT gmail DOT com> <d9a1d5a2-f477-c14a-db23-bfa9334308fa AT lysator DOT liu DOT se> <f99e8aa5-c077-f60b-3e19-bd9c6f2fb242 AT gmail DOT com>
From: Marco Atzeri <marco DOT atzeri AT gmail DOT com>
Message-ID: <0e806d55-99f9-04fb-71dc-14b4b334edcb@gmail.com>
Date: Sat, 30 Jul 2016 07:43:31 +0200
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On 30/07/2016 06:23, Marco Atzeri wrote:
> On 29/07/2016 21:32, Peter Rosin wrote:
>> On 2016-07-29 14:23, Marco Atzeri wrote:

>>
>> Reading the source comment for AC_FC_LINE_LENGTH indicates that
>> you should call AC_FC_FREEFORM or AC_FC_FIXEDFORM before you call
>> AC_FC_LINE_LENGTH. You do not do that. This is not mentioned in
>> the autoconf manual I'm looking at. I don't know if the source
>> code comment or the manual is correct (it's been 20 years since I
>> last used fortran...)
>
> Hi Peter,
> thanks for the hint, unfortunately it makes no difference.
>
> Looking at the upstream code I notice
> that AC_FC_LINE_LENGTH is the only FC call
> while all the rest is F77 based
>
> $ grep _FC configure.ac
>   AC_FC_LINE_LENGTH(unlimited)
>
> $ grep _F77 configure.ac
> AC_PROG_F77
> AC_F77_FUNC(sgemm$SYMBOLSUFFIX, sgemmsuff)
> AC_F77_FUNC(snaupd$SYMBOLSUFFIX, snaupdsuff)
> AC_F77_FUNC(sneupd$SYMBOLSUFFIX, sneupdsuff)
> AC_F77_FUNC(dnaupd$SYMBOLSUFFIX, dnaupdsuff)
> AC_F77_FUNC(dneupd$SYMBOLSUFFIX, dneupdsuff)
> AC_F77_FUNC(cheev$SYMBOLSUFFIX, cheevsuff)
>
> and this is fishy.
> I need to check it
>

replacing AC_PROG_F77 with AC_PROG_FC
did the work.

Regards
Marco


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