Bug#874727: libcoin80v5: Program using libcoin80v5 and any other library that uses lebexpat1 segfaults.

[Bernhard Übelacker]

Hello all,
tried to reproduce and still receive the crash triggered by either SVG
import or the manual action in the python console.

The parameter --enable-system-expat seems to just defines HAVE_SYSTEM_EXPAT,
which seems not used later.

Attached patch makes coin3 not to build the subdirectory src/xml/expat
and avoids linking to that local libexpat.la.

I assume therefore now following warning is shown:
dpkg-shlibdeps: warning: symbol XML_ParserFree used by debian/libcoin80v5/usr/lib/x86_64-linux-gnu/libCoin.so.80.0.0 found in none of the libraries.

But a local built package libcoin80v5 with this patch applied makes
Freecad not crash on SVG import or the manual action in python console.

Upstream seems to have added in [1] related changes into the cmake build system.

Kind regards,
Bernhard


freecad 0.17+dfsg1-5
libcoin80v5 3.1.4~abc9f50+dfsg3-2

[1] https://bitbucket.org/Coin3D/coin/pull-requests/107/allow-to-use-system-expat/diff
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