DDD 3.3.12 (x86_64-pc-linux-gnu) gets `Segmentation fault' signal

[????]

i am confused about this BUG.

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at first ,i installed ddd use 1"sudo apt-get install ddd", it can works without plot function.

so, i uninstall it ,use: 2"sudo apt-get remove ddd", and then i install gnuplot 3"sudo apt-get install gnuplot".

finally 4"sudo apt-get install ddd", while open ddd , i can see the plot bottom change from gray to  highlight.

i got this bug info .

this error make ddd software dead.

could your provide a solution? 

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$ ddd a.out
Warning: X locale modifiers not supported, using default

Internal error (Segmentation fault).

Oops!  You have found a bug in DDD.

If you can reproduce this bug, please send a bug report
to <address@hidden>, giving a subject like

    DDD 3.3.12 (x86_64-pc-linux-gnu) gets `Segmentation fault' signal

To enable us to fix the bug, you should include the following information:
* What you were doing to get this message.  Report all the facts.
* The contents of the `~/.ddd/log' file as generated by this session.
Please read also the section "Reporting Bugs" in the DDD manual.

We thank you for your support.

Segmentation fault (core dumped)