Hi Jacqueline,
first of all: thanks for the excellent report! It's rare that we
get such well-defined and -researched problem descriptions.
So, regarding SWIG, I guess "everyone" is about as smart as you
are. I don't get that warning, though I'm using the same version
of SWIG as you are – also, the same version of GCC. What differs
between our systems (mine is a fedora 25) is that you're using a
more recent Boost version – as we see from the errors, somethings
amiss with that.
Now, Boost has a history of not having good autoconf and CMake
scripts, and that could be exactly what's hurting us here – the
FindBoost in my /usr/share/cmake/Modules has exactly the warning
displayed at exactly the code line (744), but it also as a
terrible long list of elseifs() before that simple ends for 1.62 –
it seems that at least for my CMake Version, no one had the time
to fix Boost detection. Luckily, that seems fixed upstream [1]!
Can you do two things:
1. go into your /usr/share/cmake-3.7/Modules/FindBoost.cmake ,
line 744, and verify the last elseif is "NOT Boost_VERSION
VERSION_LESS 106100 AND Boost_VERSION VERSION_LESS 106200" ¹
2. if 1. is the case, go to [1], replace (maybe backup) your
FindBoost.cmake with that (maybe putting it in your
gr-tutorial/cmake/Modules directory suffices, here, but I'm not
sure in which order cmake goes through the different directories)
, empty your build dir (really, rm -rf gr-tutorial/build/*) and do
things again. Does the Boost warning disappear? If it does, would
be a nice time to let the upstream maintainer of Arch's Boost or
Arch's cmake package know that this file needs updatin'.
3. Try again with tutorial 4.
Best regards,
Marcus
[1]
https://github.com/Kitware/CMake/blob/master/Modules/FindBoost.cmake#L745
¹ somehow I feel someone missed the meaning of "elseif" here, but
that might just be me
On 01/20/2017 04:37 PM,
Jacqueline.Walker wrote:
Hello again,
Working through the python programmed
modules in the guided tutorial and no problems but I get the
same ‘module attribute error’ trying to complete the C++
tutorial.
Following directions exactly, files
compile, block appears in GRC, can build the flowgraph but get
the same execution error.
Please see text files attached with the
error output and the outputs of the cmake.. and make
commands. Obviously, there are warnings etc. that do not
appear in the sample output as described in the tutorial.
Could these be the cause of the error? I could not find any
helpful information on swig warning 302 for example beyond
what it roughly means.
As before running on a completely
up-to-date Archlinux 4.8.13 and GRC 3.7.10.1. I have removed
and rebuilt everything several times but nothing works.
Thanks for any suggestions,
Jacqueline
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