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

From: Eric Blake
Subject: Re: Fwd: ax_lib_hdf5 bug with library ordering, static libraries
Date: Tue, 30 Aug 2016 16:14:44 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0

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,

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:
> AX_LIB_HDF5([serial])
> 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

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