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workaround for lesser m4s in prim
disabled aggressive test in test/signals.fs that led to spurious failures

    1: \ test signal catching
    2: 
    3: \ Copyright (C) 2002,2003 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: 
   22: \ the following sequence crashes gforth-0.5.0 on Linux-PPC
   23: \ but testing it can cause a bug on Solaris-i386, because apparently
   24: \ some code from the stack is executed that corrupts something, so
   25: \ interpreting the next line crashes
   26: \ : down 1- ;
   27: \ ' down 1- ' execute catch 2drop
   28: 
   29: \ test if SIGSEGV handler really works (in particular sigaltstack)
   30: 0 ' @ catch 2drop