pkg/47177: gnuplot 4.6.x wxterminal broken because of pthread errors

[bad%bsd.de@localhost]

>Number:         47177
>Category:       pkg
>Synopsis:       wxt terminal does not work on NetBSD.
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Nov 10 15:35:00 +0000 2012
>Originator:     Christoph Badura
>Release:        NetBSD 5.1_STABLE
>Organization:
bozotic software testing labs
>Environment:
        
        
System: NetBSD limiting-factor 5.1_STABLE NetBSD 5.1_STABLE (nervous-energy) 
#4: Fri Nov 4 16:57:02 MET 2011 
root@youll-thank-me-later:/m/obj/m/src/sys/arch/i386/compile/nervous-energy i386
Architecture: i386
Machine: i386
>Description:
gnuplot 4.6.x hangs as soon as the wxt terminal is initialised
>How-To-Repeat:
PKG_OPTIONS.gnuplot+= wxterminal

$ env PTHREAD_DIAGASSERT=ea ../gnuplot

        G N U P L O T
        Version 4.6 patchlevel 1    last modified 2012-09-26 
        Build System: NetBSD i386

        Copyright (C) 1986-1993, 1998, 2004, 2007-2012
        Thomas Williams, Colin Kelley and many others

        gnuplot home:     http://www.gnuplot.info
        faq, bugs, etc:   type "help FAQ"
        immediate help:   type "help"  (plot window: hit 'h')

Terminal type set to 'wxt'
gnuplot> plot x
gnuplot: Error detected by libpthread: Unlocking mutex owned by another thread.
Detected by file "/m/src/lib/libpthread/pthread_mutex.c", line 425, function 
"pthread__mutex_unlock_slow".
See pthread(3) for information.
Abort trap (core dumped)

$ gdb gnuplot gnuplot.core
Core was generated by `gnuplot'.
Program terminated with signal 6, Aborted.
#0  0xba6750b7 in kill () from /usr/lib/libc.so.12
(gdb) bt
#0  0xba6750b7 in kill () from /usr/lib/libc.so.12
#1  0xba755ac7 in pthread__errorfunc () from /usr/lib/libpthread.so.0
#2  0xba753c0a in pthread_mutex_init () from /usr/lib/libpthread.so.0
#3  0xba757820 in ?? () from /usr/lib/libpthread.so.0
#4  0x000001a9 in ?? ()
#5  0xba7578be in ?? () from /usr/lib/libpthread.so.0
#6  0xba757848 in ?? () from /usr/lib/libpthread.so.0
#7  0xbb2f2808 in ?? () from /usr/pkg/lib/libwx_gtk2u_core-2.8.so.0
#8  0xbb2faa0a in ?? () from /usr/pkg/lib/libwx_gtk2u_core-2.8.so.0
#9  0xbbbf6f30 in _rtld_find_symdef () from /usr/libexec/ld.elf_so
#10 0xbb230c83 in wxMutexInternal::Unlock ()
   from /usr/pkg/lib/libwx_baseu-2.8.so.0
#11 0xbb230cd1 in wxMutex::Unlock () from /usr/pkg/lib/libwx_baseu-2.8.so.0
#12 0xbb230d02 in wxMutexGuiLeave () from /usr/pkg/lib/libwx_baseu-2.8.so.0
#13 0xbb3bc52b in wxapp_poll_func ()
   from /usr/pkg/lib/libwx_gtk2u_core-2.8.so.0
#14 0xbaf17776 in g_main_context_prepare () from /usr/pkg/lib/libglib-2.0.so.0
#15 0xbaf1798f in g_main_loop_run () from /usr/pkg/lib/libglib-2.0.so.0
#16 0xbac727f9 in gtk_main () from /usr/pkg/lib/libgtk-x11-2.0.so.0
#17 0xbb3d499b in wxEventLoop::Run ()
   from /usr/pkg/lib/libwx_gtk2u_core-2.8.so.0
#18 0xbb45854a in wxAppBase::MainLoop ()
   from /usr/pkg/lib/libwx_gtk2u_core-2.8.so.0
#19 0xbb457c4e in wxAppBase::OnRun ()
   from /usr/pkg/lib/libwx_gtk2u_core-2.8.so.0
#20 0x08135a11 in wxtThread::Entry ()
#21 0xbb23220b in wxThreadInternal::PthreadStart ()
   from /usr/pkg/lib/libwx_baseu-2.8.so.0
#22 0xbb2322a3 in wxPthreadStart () from /usr/pkg/lib/libwx_baseu-2.8.so.0
#23 0xba75722b in pthread_setcancelstate () from /usr/lib/libpthread.so.0
#24 0xba696aa0 in swapcontext () from /usr/lib/libc.so.12
(gdb) 

>Fix:

unknown.

>Unformatted: