cpp demos fail after 'scons install'

[Garth Wells]

The cpp demos fail (link issues) after 'scons install'. Appears to be a linking issue.

When using the SConstruct files is

  https://code.launchpad.net/~garth-wells/tritetmesh/misc/+merge/18226

the demos run.

[Johan Hake (johan-hake)]

On Thursday 28 January 2010 10:28:32 Garth Wells wrote:
> Public bug reported:
>
> The cpp demos fail (link issues) after 'scons install'. Appears to be a
> linking issue.

I assume you try to run the demos after you have compiled them from the root
of tritetmesh using enableDemos=1?

They run nicely for me.

> When using the SConstruct files is
>
> https://code.launchpad.net/~garth-wells/tritetmesh/misc/+merge/18226
>
> the demos run.

I have now added a similar to the dev branch

Johan

[Garth Wells (garth-wells)]

Johan Hake wrote:
> On Thursday 28 January 2010 10:28:32 Garth Wells wrote:
>> Public bug reported:
>>
>> The cpp demos fail (link issues) after 'scons install'. Appears to be a
>> linking issue.
>
> I assume you try to run the demos after you have compiled them from the root
> of tritetmesh using enableDemos=1?
>

I just did 'scons' (not 'scons install' as reported) from the root dir
of tritetmesh and the demos were built. I didn't use 'enableDemos=1' and
it's not in the options cache. When I run a demo I get

./demo: symbol lookup error:
/home/garth/code/fenics/dolfin/dolfin-all/local/lib/libdolfin.so.0:
undefined symbol: _Z26KSPMonitorTrueResidualNormP6_p_KSPidPv

If I do 'scons' in

  tritetmesh/demo/trimesh/areafunction/cpp

then the demo runs fine.

Garth

> They run nicely for me.
>
>> When using the SConstruct files is
>>
>> https://code.launchpad.net/~garth-wells/tritetmesh/misc/+merge/18226
>>
>> the demos run.
>
> I have now added a similar to the dev branch
>
> Johan
>

[Garth Wells (garth-wells)]

Looks like a problem with the version of PETSc. Doing

   scons

links to the system-wide installation of PETsc which is in /usr.

Doing 'scons' on a demo picks up my version of PETSc which is pointed to by PETSC_DIR.

[Johan Hake (johan-hake)]

On Thursday 28 January 2010 11:42:19 Garth Wells wrote:
> Johan Hake wrote:
> > On Thursday 28 January 2010 10:28:32 Garth Wells wrote:
> >> Public bug reported:
> >>
> >> The cpp demos fail (link issues) after 'scons install'. Appears to be a
> >> linking issue.
> >
> > I assume you try to run the demos after you have compiled them from the
> > root of tritetmesh using enableDemos=1?
>
> I just did 'scons' (not 'scons install' as reported) from the root dir
> of tritetmesh and the demos were built. I didn't use 'enableDemos=1' and
> it's not in the options cache. When I run a demo I get

I then wonder why the demo even was compiled?

Johan

> ./demo: symbol lookup error:
> /home/garth/code/fenics/dolfin/dolfin-all/local/lib/libdolfin.so.0:
> undefined symbol: _Z26KSPMonitorTrueResidualNormP6_p_KSPidPv
>
> If I do 'scons' in
>
> tritetmesh/demo/trimesh/areafunction/cpp
>
> then the demo runs fine.
>
> Garth
>
> > They run nicely for me.
> >
> >> When using the SConstruct files is
> >>
> >> https://code.launchpad.net/~garth-wells/tritetmesh/misc/+merge/18226
> >>
> >> the demos run.
> >
> > I have now added a similar to the dev branch
> >
> > Johan
>

[Garth Wells (garth-wells)]

The problem could be that

  -Wl,-rpath

is missing when the tritetmesh library is built. The are presented when one does

  pkg-config --libs tritetmesh_tetmesh

I recall a problem like this with DOLFIN. I can't remember the details, but it was to do with pkg-config stripping away flags like -Wl,-rpath and just returning the path to the libraries.

[Johan Hake (johan-hake)]

On Thursday 28 January 2010 11:56:23 Garth Wells wrote:
> Looks like a problem with the version of PETSc. Doing
>
> scons
>
> links to the system-wide installation of PETsc which is in /usr.

I just changed a modenv.Append(linkflags...) -> modenv.Prepend(linkflags...),
when building the demos from root. This might help?

I see that the SConscript in dolfin/demo also do Append. Do you have troubles
running these?

Johan

> Doing 'scons' on a demo picks up my version of PETSc which is pointed
> to by PETSC_DIR.
>

[Garth Wells (garth-wells)]

Johan Hake wrote:
> On Thursday 28 January 2010 11:56:23 Garth Wells wrote:
>> Looks like a problem with the version of PETSc. Doing
>>
>> scons
>>
>> links to the system-wide installation of PETsc which is in /usr.
>
> I just changed a modenv.Append(linkflags...) -> modenv.Prepend(linkflags...),
> when building the demos from root. This might help?
>

Doesn't help.

Does the version of simula_scons distributed with tritetgen use the
pkg-config flags '--libs-only-l' and '--libs-only-L'? These strip away
-rpath, etc, which is bad.

> I see that the SConscript in dolfin/demo also do Append. Do you have troubles
> running these?
>

No.

Garth

> Johan
>
>> Doing 'scons' on a demo picks up my version of PETSc which is pointed
>> to by PETSC_DIR.
>>
>

[Johan Hake (johan-hake)]

On Thursday 28 January 2010 12:13:24 Garth Wells wrote:
> The problem could be that
>
> -Wl,-rpath
>
> is missing when the tritetmesh library is built. The are presented when
> one does
>
> pkg-config --libs tritetmesh_tetmesh
>
> I recall a problem like this with DOLFIN. I can't remember the details,
> but it was to do with pkg-config stripping away flags like -Wl,-rpath
> and just returning the path to the libraries.

You might be correct here. After some digging I think I have fixed it.

Johan

[Johan Hake (johan-hake)]

On Thursday 28 January 2010 12:32:02 Garth Wells wrote:
> Johan Hake wrote:
> > On Thursday 28 January 2010 11:56:23 Garth Wells wrote:
> >> Looks like a problem with the version of PETSc. Doing
> >>
> >> scons
> >>
> >> links to the system-wide installation of PETsc which is in /usr.
> >
> > I just changed a modenv.Append(linkflags...) ->
> > modenv.Prepend(linkflags...), when building the demos from root. This
> > might help?
>
> Doesn't help.
>
> Does the version of simula_scons distributed with tritetgen use the
> pkg-config flags '--libs-only-l' and '--libs-only-L'? These strip away
> -rpath, etc, which is bad.

The simula-scons version in tritetmesh is more or less the same as in dolfin,
however, the fix was done in the SConscript file. The flags were collected
from the pkg-config file but not added to the build environment.

They are now.

Johan

> > I see that the SConscript in dolfin/demo also do Append. Do you have
> > troubles running these?
>
> No.
>
> Garth
>
> > Johan
> >
> >> Doing 'scons' on a demo picks up my version of PETSc which is pointed
> >> to by PETSC_DIR.
>

[Garth Wells (garth-wells)]

Johan Hake wrote:
> On Thursday 28 January 2010 12:32:02 Garth Wells wrote:
>> Johan Hake wrote:
>>> On Thursday 28 January 2010 11:56:23 Garth Wells wrote:
>>>> Looks like a problem with the version of PETSc. Doing
>>>>
>>>> scons
>>>>
>>>> links to the system-wide installation of PETsc which is in /usr.
>>> I just changed a modenv.Append(linkflags...) ->
>>> modenv.Prepend(linkflags...), when building the demos from root. This
>>> might help?
>> Doesn't help.
>>
>> Does the version of simula_scons distributed with tritetgen use the
>> pkg-config flags '--libs-only-l' and '--libs-only-L'? These strip away
>> -rpath, etc, which is bad.
>
> The simula-scons version in tritetmesh is more or less the same as in dolfin,
> however, the fix was done in the SConscript file. The flags were collected
> from the pkg-config file but not added to the build environment.
>
> They are now.
>

Thanks! I spotted it but you beat me to it.

I have another error now. When I do 'scons' I get

scons: *** [/usr/local/include/tritetmesh]
/usr/local/include/tritetmesh: Permission denied
scons: building terminated because of errors.

Garth

> Johan
>
>>> I see that the SConscript in dolfin/demo also do Append. Do you have
>>> troubles running these?
>> No.
>>
>> Garth
>>
>>> Johan
>>>
>>>> Doing 'scons' on a demo picks up my version of PETSc which is pointed
>>>> to by PETSC_DIR.
>

[Johan Hake (johan-hake)]

On Thursday 28 January 2010 13:08:21 Garth Wells wrote:
> Johan Hake wrote:
> > On Thursday 28 January 2010 12:32:02 Garth Wells wrote:
> >> Johan Hake wrote:
> >>> On Thursday 28 January 2010 11:56:23 Garth Wells wrote:
> >>>> Looks like a problem with the version of PETSc. Doing
> >>>>
> >>>> scons
> >>>>
> >>>> links to the system-wide installation of PETsc which is in /usr.
> >>>
> >>> I just changed a modenv.Append(linkflags...) ->
> >>> modenv.Prepend(linkflags...), when building the demos from root. This
> >>> might help?
> >>
> >> Doesn't help.
> >>
> >> Does the version of simula_scons distributed with tritetgen use the
> >> pkg-config flags '--libs-only-l' and '--libs-only-L'? These strip away
> >> -rpath, etc, which is bad.
> >
> > The simula-scons version in tritetmesh is more or less the same as in
> > dolfin, however, the fix was done in the SConscript file. The flags were
> > collected from the pkg-config file but not added to the build
> > environment.
> >
> > They are now.
>
> Thanks! I spotted it but you beat me to it.
>
> I have another error now. When I do 'scons' I get
>
> scons: *** [/usr/local/include/tritetmesh]
> /usr/local/include/tritetmesh: Permission denied
> scons: building terminated because of errors.

I have tried to reproduce this but I can't. Can you include more informations?

Johan

> Garth
>
> > Johan
> >
> >>> I see that the SConscript in dolfin/demo also do Append. Do you have
> >>> troubles running these?
> >>
> >> No.
> >>
> >> Garth
> >>
> >>> Johan
> >>>
> >>>> Doing 'scons' on a demo picks up my version of PETSc which is pointed
> >>>> to by PETSC_DIR.
>

[Garth Wells (garth-wells)]

Johan Hake wrote:
> On Thursday 28 January 2010 13:08:21 Garth Wells wrote:
>> Johan Hake wrote:
>>> On Thursday 28 January 2010 12:32:02 Garth Wells wrote:
>>>> Johan Hake wrote:
>>>>> On Thursday 28 January 2010 11:56:23 Garth Wells wrote:
>>>>>> Looks like a problem with the version of PETSc. Doing
>>>>>>
>>>>>> scons
>>>>>>
>>>>>> links to the system-wide installation of PETsc which is in /usr.
>>>>> I just changed a modenv.Append(linkflags...) ->
>>>>> modenv.Prepend(linkflags...), when building the demos from root. This
>>>>> might help?
>>>> Doesn't help.
>>>>
>>>> Does the version of simula_scons distributed with tritetgen use the
>>>> pkg-config flags '--libs-only-l' and '--libs-only-L'? These strip away
>>>> -rpath, etc, which is bad.
>>> The simula-scons version in tritetmesh is more or less the same as in
>>> dolfin, however, the fix was done in the SConscript file. The flags were
>>> collected from the pkg-config file but not added to the build
>>> environment.
>>>
>>> They are now.
>> Thanks! I spotted it but you beat me to it.
>>
>> I have another error now. When I do 'scons' I get
>>
>> scons: *** [/usr/local/include/tritetmesh]
>> /usr/local/include/tritetmesh: Permission denied
>> scons: building terminated because of errors.
>
> I have tried to reproduce this but I can't. Can you include more
> informations?
>

I opened a new bug report,

   https://bugs.launchpad.net/bugs/513913

Garth

> Johan
>
>> Garth
>>
>>> Johan
>>>
>>>>> I see that the SConscript in dolfin/demo also do Append. Do you have
>>>>> troubles running these?
>>>> No.
>>>>
>>>> Garth
>>>>
>>>>> Johan
>>>>>
>>>>>> Doing 'scons' on a demo picks up my version of PETSc which is pointed
>>>>>> to by PETSC_DIR.
>