On Tue, May 5, 2015 at 8:05 PM, Bruno Coutinho Mundim <[email protected]>
wrote:
> Hi Frank:
>
> On 05/05/2015 06:55 PM, Frank Loeffler wrote:
> > Hi,
> >
> > Doesn't this patch always set BOOST_*_DIRS to some multi-arch
> > directory (if gcc is found), even if it was installed in a standard
> > location (/usr or /usr/local)? Shouldn't it only set these if a
> > multi-arch directory is actually found?
> >
> I see your point. I updated the patch with Erik's changes and
> add ${BOOST_DIR}/lib. However I don't see the reason to single out
> /usr and /usr/local to do nothing with respect to setting BOOST_*_DIRS
> as it was before. Do you know the rationale for that?
>
/usr and /usr/local are system directories. That means (a) they are
searched by default, and (b) they contain many libraries, possibly ones
that we don't want. If we use Boost from /usr/lib, and Boost were to add
/usr/lib to the search path, and if /usr/lib also contains HDF5, but we
want to use our own HDF5 library instead, then using Boost may cause the
linker to pick up HDF5 from /usr/lib instead of our own version. Thus we
don't add standard library paths to the search path, neither for include
nor for lib directories.
-erik
Thanks,
> Bruno.
>
> > Frank
> >
> > On Tue, May 05, 2015 at 04:34:27PM +0000, [email protected] wrote:
> >> User: bmundim
> >> Date: 2015/05/05 11:34 AM
> >>
> >> Modified:
> >> /trunk/
> >> configure.sh
> >>
> >> Log:
> >> Define multiarch library directory.
> >>
> >> See discussions at https://trac.einsteintoolkit.org/ticket/1769
> >>
> >> File Changes:
> >>
> >> Directory: /trunk/
> >> ==================
> >>
> >> File [modified]: configure.sh
> >> Delta lines: +11 -1
> >> ===================================================================
> >> --- trunk/configure.sh 2014-05-29 20:47:04 UTC (rev 6)
> >> +++ trunk/configure.sh 2015-05-05 16:34:26 UTC (rev 7)
> >> @@ -151,9 +151,19 @@
> >> # Configure Cactus
> >>
> ################################################################################
> >>
> >> +# Set library directory name for machine architecture:
> >> +gcc -dumpversion > /dev/null 2>&1
> >> +
> >> +if [ $? -eq 0 ]; then
> >> + MACHINE=${MACHINE:=`gcc -dumpmachine`}
> >> +else
> >> + MACHINE=${MACHINE:=""}
> >> +fi
> >> +
> >> # Set options
> >> if [ "${BOOST_DIR}" = '/usr' -o "${BOOST_DIR}" = '/usr/local' ]; then
> >> - : # do nothing
> >> + BOOST_INC_DIRS="${BOOST_DIR}/include"
> >> + BOOST_LIB_DIRS="${BOOST_DIR}/lib/${MACHINE}"
> >> else
> >> BOOST_INC_DIRS="${BOOST_DIR}/include"
> >> if [ -d ${BOOST_DIR}/lib64 ]; then
> >>
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> >>
> >>
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--
Erik Schnetter <[email protected]>
http://www.perimeterinstitute.ca/personal/eschnetter/
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