[Octave-bug-tracker] [bug #48911] octave hangs built by mxe-octave on linux using gcc 5

[Tatsuro MATSUOKA]

Follow-up Comment #1, bug #48911 (project octave):

>From the gdb information on the previous post, the crash seems to be related
to libcursus built by mxe-octave using gcc-5.

At usr/bin directory on mxe-otave on linux using gcc-5,
I have executed:


LD_PRELOAD=/home/tatsu/work/octave/mxe-octave/mxe-octave-linux-dev-gcc493/usr/lib/libncurses.so
./octave-cli



GNU Octave, version 4.1.0+
Copyright (C) 2016 John W. Eaton and others.
This is free software; see the source code for copying conditions.
There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  For details, type 'warranty'.

Octave was configured for "x86_64-pc-linux-gnu".



Octave started up without crash.

/home/tatsu/work/octave/mxe-octave/mxe-octave-linux-dev-gcc493/usr/lib/libncurses.so

is libncurses.so built by mxe-octave using gcc-4.9.3.

Thus libncurses built by mxe-octave using gcc-5 is buggy.

In the src directory "ncurses-1-gcc-5-fix.patch" exists.
The patch seem to be well known for nurcus-5.9 :

https://github.com/cloudius-systems/osv/blob/master/modules/ncurses/ncurses-5.9-gcc-5.patch

I do not know the hang that I have met related to the patch.

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