Fixes by w3seek regarding interlocked functions.  These were due to my 
missing a mismatch between the glib functions and windows variants.

Modified: trunk/reactos/lib/rosrtl/misc/intrlck.c

--- trunk/reactos/lib/rosrtl/misc/intrlck.c	2005-03-08 22:41:27 UTC (rev 13891)
+++ trunk/reactos/lib/rosrtl/misc/intrlck.c	2005-03-08 23:01:54 UTC (rev 13892)
@@ -136,8 +136,8 @@

                   "lock\n\txchgl %0,(%1)"
                   :"=r" (ret):"r" (target), "0" (value):"memory" );
 #elif defined(_M_PPC)

-        ret = *target;
-        while( InterlockedCompareExchange( target, value, ret ) != value );

+        ret = *(volatile LONG *)target;
+        while( InterlockedCompareExchange( target, value, ret ) != ret );

 #endif
 	return ret;
 }
@@ -202,9 +202,11 @@

                   :"r" (Addend), "0" (Increment)
                   :"memory" );
 #elif defined(_M_PPC)

-        do
-            ret = *Addend;
-        while (!InterlockedCompareExchange(Addend, ret, ret + Increment));

+        LONG newval;
+        do {
+            ret = *(volatile LONG *)Addend;
+            newval = ret + Increment;
+        } while (InterlockedCompareExchange(Addend, ret, newval) != ret);

 #endif
 	return ret;
 }