GNU bug report logs -
#54817
Outdated IBM XL Fortran shared library work around
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Alex,
It appears to be in the git repo, so if that is 2.4.7, then yes.
Attached is a patch that works for me, checking to see if the XL Fortran
compiler is at least Version 16 or better (maybe a better way of checking).
Thanks for responding so quickly,
Bill
I have more general workaround where I check the IBM XL Fortran
version. See example below:
On 4/9/22 12:24 PM, Alex Ameen wrote:
> This sounds reasonable to me. Just to clarify, is this workaround
> still in 2.4.7?
>
> On Sat, Apr 9, 2022, 10:02 AM William T Jones via Bug-libtool via Bug
> reports for the GNU libtool shared library maintenance tool
> <bug-libtool <at> gnu.org> wrote:
>
> Hello,
>
> Libtool 2.4.6 has an apparently outdated work around for the IBM XL
> Fortran compiler's inability to link shared libraries (see
> m4/libtool.m4
> lines 5208, 5237-5248).
>
> As comments in m4/libtool.m4 state, the problem is with IBM XL
> Fortran
> version 10.1 on PowerPC. However, we are now using IBM XL Fortran
> version 16.1 on PPC (ORNL summit) and it does allow linking of shared
> objects with xlf via the same "-qmkshrobj" command line option
> used by
> xlc and xlC on lines 5208-5210 of m4/libtool.m4.
>
> To make matters worse, the workaround of using $LD to link shared
> libraries with Fortran objects does not easily work when linking
> mixed
> language object code into such a shared library (one needs to know
> IBM
> XL paths to libraries like libibmc++.so and libstdc++.so, for
> example).
> This is easily resolved when one links with `xlf -qmkshrobj ...`.
>
> It is suggested that this workaround check for compiler version or be
> deprecated.
>
> Resolution is appreciated,
>
>
> --
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>
> Bill Jones W.T.JONES <at> NASA.GOV
> Mail Stop 128 Computational AeroSciences
> Branch
> 15 Langley Boulevard Research
> Directorate
> NASA Langley Research Center Building 1268,
> Room 1044
> Hampton, VA 23681-2199 Phone +1 757
> 864-5318
> Fax +1 757
> 864-8816
> http://fun3d.larc.nasa.gov
>
>
>
>
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--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bill JonesW.T.JONES <at> NASA.GOV
Mail Stop 128 Computational AeroSciences Branch
15 Langley Boulevard Research Directorate
NASA Langley Research Center Building 1268, Room 1044
Hampton, VA 23681-2199 Phone +1 757 864-5318
Fax +1 757 864-8816
http://fun3d.larc.nasa.gov
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[libtool-xlf.patch (text/plain, attachment)]
This bug report was last modified 3 years and 71 days ago.
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