Building p4est with no system-wide zlib

[Michał Wichrowski]

Dear all,

I am trying to set up deal.II on a computer with no system-wide zlib. I do not have sudo privileges, thus I cannot just install, so I compiled it from the source and installed in my home directory. Now I am trying to build p4est using it. According to the message thrown by the scrip (https://www.dealii.org/current/external-libs/p4est.html) I should 

export CPPFLAGS="-DSC_LOG_PRIORITY=SC_LP_ESSENTIAL  -I/export/home/mwichro/lib/zlib/include/"

export LDFLAGS="-L/export/home/mwichro/lib/zlib/lib/"

Apparently setting those does not resolve the problem, the script still complains about zlib.

By going through what the script really does, I think the following line triggers an error:

grep -q 'P4EST_HAVE_ZLIB *1' "$BUILD_FAST/src/p4est_config.h" \ || bdie "$MISSING_ZLIB_MESSAGE"

As far as I understood, it looks into p4est-build/FAST/src/p4est_config.h . That file on my system does not exist. I also went through the config.log, it looks like it contains:

#define LIBS "  -lz -lm   "

so I guess it links with zlib?

By the way, I moved to Heidelberg and I am happy to continue my work with deal.II library.

Best,
Michał

[Wolfgang Bangerth]

Michal: I don't know whether anyone still remembers how that
installation script came about. What happens if you just remove the line
that causes the script to abort?

> By the way, I moved to Heidelberg and I am happy to continue my work
> with deal.II library.

Nice, glad to hear you landed in a good place a lot of us have good
memories of!

Best
Wolfgang

--
------------------------------------------------------------------------
Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/

[Marc Fehling]

Hi Michał,

maybe it will help to invoke `configure --help` on the source of your p4est tarball. Hopefully there will be instructions on how to connect custom zlib libraries -- I couldn't find anything in their README :(

Best,
Marc

[Michał Wichrowski]

@Wolfgang:
I commented out that lines, compiled deal.II and it looks OK, at least `make test` passes and  step-37 works in both release and debug mode. 

@Marc
I had the same idea, but there was nothing in `configure --help` to put custom zlib patch.

Thank you for the answers. For reference, I was using p4est-2.3.2