I have been looking at the sources on PMML, and after some work got it  
to compile.  It is in K&R C which is intrinsically unsafe.

The segfault happens in strdup called from _get_expression
and that is the source of the problems.  get_exprssion is #'defined as  
_get_expression(0) which is the wrong number of arguments.  There  
should be a second argument.  I realise that that parameter should be  
ignored at the start of the function but it ploughs on; that is where  
the crash comes from

#1  0x00007ffff77adc0e in strdup () from /lib64/libc.so.6
#2  0x0000000000405cc3 in _get_expression (asgn_op_type=asgn_op_type@entry=0,
     lopd=lopd@entry=0x0) at expr.c:201
#3  0x000000000040b05d in scan_args (arg_spec=0x4231ca "iiiiiis:ss",
     cmd_name=0x631280 "$smfout") at parseut.c:153
#4  0x0000000000411ed1 in do_effclass () at parse.c:2408
#5  0x000000000040fdf4 in parse_cmds (mode=mode@entry=10112) at parse.c:355
#6  0x000000000040fec0 in parse_main () at parse.c:250
#7  0x00000000004028a6 in main (argc=<optimized out>, argv=<optimized out>)
     at pmml.c:321

Quoting Arthur Pirika <arfy32@gmail.com>:

> Hi there. This isn't strictly cSound, but it is to do with musical  
> programming languages, so thought I'd start here, and ask where I  
> should go next. My project that I'm working on, and would like help  
> with is to bring back to life a programming language called PMML,  
> the practical music macro language written by Satoshi Nishimura.
> It's final release was in 1998, however, the code seems to be quite  
> well documented, and it does compile and run perfectly in windows.  
> However, I can't get it to run under linux-x64, where it segfaults  
> every time it tries to parse a file. Also, the manual's in Japanese,  
> and it would be nice if someone could help translate it to english.  
> Obviously, I won't say much more here, but if I could be pointed in  
> the direction I should go to ask for help and bring people on board,  
> I'd appreciate it a lot.
>
> thanks!
> Arthur
>
>
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