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X-Bullshit: extension general-purpose WEB2.0 software base 
Subject: Re: [9front] 9Front Drawterm Code 139 Sig 11 SIGSEGV
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> Thread 1 received signal SIGSEGV, Segmentation fault.
> Address not mapped to object.
> 0x0000000000294488 in tas (x=x@entry=0x0) at tas.c:9
> 9 asm( "movl   $1, %%eax\n\t"
> (gdb) bt
> #0  0x0000000000294488 in tas (x=x@entry=0x0) at tas.c:9
> #1  0x000000000028dd5b in canlock (lk=0x0) at lock.c:62

Try this change in Make.freebsd

; grep '^PTHREAD' drawterm/Make.freebsd
PTHREAD=-pthread -DPTHREAD

I don't remember what's wrong with the tas code.

By the way, FreeBSD should by default have unlimited coredump,
from coredumpsize in /etc/login.conf. And lldb comes with the
system.