CONFIG_X86_CMPXCHG on Intel 386 still needed?

Edelhard Becker rtai at software-manufaktur.de
Mon Oct 4 16:58:38 CEST 2004


On Mon, Oct 04, 2004 at 04:48:30PM +0200, Edelhard Becker wrote:
> [..] With the attached patch ..

... here it is:

--------------------------- snip! -----------------------------------
--- configure.orig	2004-10-04 16:34:11.000000000 +0200
+++ configure	2004-10-04 16:33:12.000000000 +0200
@@ -9236,9 +9236,13 @@
     CONFIG_RTAI_CPUS=1
   fi
   if test x$CONFIG_X86_CMPXCHG = x; then
-     { { echo "$as_me:$LINENO: error: RTAI won't work on legacy i386 platforms (cmpxchg() is missing, need >= CONFIG_M486)" >&5
-echo "$as_me: error: RTAI won't work on legacy i386 platforms (cmpxchg() is missing, need >= CONFIG_M486)" >&2;}
+  {
+    if test x$CONFIG_X86_EMU486 = x; then
+     { { echo "$as_me:$LINENO: error: RTAI needs CONFIG_X86_EMU486 on i386" >&5
+	       echo "$as_me: error: RTAI needs CONFIG_X86_EMU486 on i386" >&2;}
    { (exit 1); exit 1; }; }
+    fi
+  }
   fi
   if test x$CONFIG_RTAI_XENOMAI = xy -a x$CONFIG_X86_WP_WORKS_OK = x; then
      { { echo "$as_me:$LINENO: error: RTAI/Xenomai won't work on legacy i386 platforms (cannot rely on WP bit, need >= CONFIG_M486)" >&5
--------------------------- snip! -----------------------------------

Greetings,
Edelhard
-- 
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