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Fwd: ax_lib_hdf5 bug with library ordering, static libraries

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Fwd: ax_lib_hdf5 bug with library ordering, static libraries

Harald Anlauf
[I erroneously mailed this to the autoconf list.  Sorry for that.]

Hello,

I have a system where HDF5 installation seems to differ from what the
autoconf package ax_lib_hdf5 expects:

% h5fc -show
gfortran -I/usr/include -L/usr/lib /usr/lib/libhdf5hl_fortran.a
/usr/lib/libhdf5_hl.a /usr/lib/libhdf5_fortran.a /usr/lib/libhdf5.a
-lpthread -lz -lrt -ldl -lm -Wl,-rpath -Wl,/usr/lib

Using the latest snapshot of ax_lib_hdf5, I get:

configure.in:

AX_LIB_HDF5([serial])
echo "HDF5_LDFLAGS=$HDF5_LDFLAGS"
echo "HDF5_FLIBS=$HDF5_FLIBS"
echo "HDF5_FFLAGS=$HDF5_FFLAGS"

Running configure:

checking for a sed that does not truncate output... /usr/bin/sed
checking for gawk... gawk
checking for h5cc... /usr/bin/h5cc
checking for HDF5 type... serial
checking for HDF5 libraries... yes (version 1.8.12)
checking hdf5.h usability... yes
checking hdf5.h presence... yes
checking for hdf5.h... yes
checking for H5Fcreate in -lhdf5... yes
checking for main in -lhdf5_hl... yes
checking for matching HDF5 Fortran wrapper... /usr/bin/h5fc
HDF5_LDFLAGS=-L/usr/lib
HDF5_FLIBS= -lm -ldl -lrt -lz -lpthread -lhdf5_fortran -lhdf5
-lhdf5hl_fortran -lhdf5_hl
HDF5_FFLAGS=-I/usr/lib -L/usr/lib -I/usr/include

The ordering of the libraries in HDF5_FLIB seems to get screwed up.
I think the logic in rewriting the FLIB part in lines 270-308 is not
prepared to handle my environment.

Is somebody still working on the HDF5 support?

Thanks,
Harald


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Re: Fwd: ax_lib_hdf5 bug with library ordering, static libraries

Eric Blake-3
On 08/30/2016 03:57 PM, Harald Anlauf wrote:
>
> I have a system where HDF5 installation seems to differ from what the
> autoconf package ax_lib_hdf5 expects:
>

Except that autoconf proper doesn't provide ax_lib_hdf5.  Given the ax_
prefix, it probably belongs to the Autoconf Archive project,
https://www.gnu.org/software/autoconf-archive/

I'm not sure if I have the correct bug reporting address for that
project, so I've added the maintainer address mentioned in the manual in cc.

> % h5fc -show
> gfortran -I/usr/include -L/usr/lib /usr/lib/libhdf5hl_fortran.a
> /usr/lib/libhdf5_hl.a /usr/lib/libhdf5_fortran.a /usr/lib/libhdf5.a
> -lpthread -lz -lrt -ldl -lm -Wl,-rpath -Wl,/usr/lib
>
> Using the latest snapshot of ax_lib_hdf5, I get:
>
> configure.in:
>
> AX_LIB_HDF5([serial])
> echo "HDF5_LDFLAGS=$HDF5_LDFLAGS"
> echo "HDF5_FLIBS=$HDF5_FLIBS"
> echo "HDF5_FFLAGS=$HDF5_FFLAGS"
>
> Running configure:
>
> checking for a sed that does not truncate output... /usr/bin/sed
> checking for gawk... gawk
> checking for h5cc... /usr/bin/h5cc
> checking for HDF5 type... serial
> checking for HDF5 libraries... yes (version 1.8.12)
> checking hdf5.h usability... yes
> checking hdf5.h presence... yes
> checking for hdf5.h... yes
> checking for H5Fcreate in -lhdf5... yes
> checking for main in -lhdf5_hl... yes
> checking for matching HDF5 Fortran wrapper... /usr/bin/h5fc
> HDF5_LDFLAGS=-L/usr/lib
> HDF5_FLIBS= -lm -ldl -lrt -lz -lpthread -lhdf5_fortran -lhdf5
> -lhdf5hl_fortran -lhdf5_hl
> HDF5_FFLAGS=-I/usr/lib -L/usr/lib -I/usr/include
>
> The ordering of the libraries in HDF5_FLIB seems to get screwed up.
> I think the logic in rewriting the FLIB part in lines 270-308 is not
> prepared to handle my environment.
>
> Is somebody still working on the HDF5 support?
>
> Thanks,
> Harald
>
>
>
--
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


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