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diff -ru crafty-24.1.org/lock.h crafty-24.1/lock.h
--- crafty-24.1.org/lock.h 2015-03-10 16:24:09.064539177 +0100
+++ crafty-24.1/lock.h 2015-03-10 17:45:37.675995497 +0100
@@ -42,6 +42,7 @@
* *
*******************************************************************************
*/
+# if defined(__i386__) || defined(__amd64__)
static void __inline__ LockX86(volatile int *lock) {
int dummy;
asm __volatile__(
@@ -71,17 +72,26 @@
:"memory");
}
-# define LockInit(p) (p=0)
-# define LockFree(p) (p=0)
-# define Unlock(p) (UnlockX86(&p))
-# define Lock(p) (LockX86(&p))
-# define lock_t volatile int
-# endif
+# define LockInit(p) (p=0)
+# define LockFree(p) (p=0)
+# define Unlock(p) (UnlockX86(&p))
+# define Lock(p) (LockX86(&p))
+# define lock_t volatile int
+# else /* Not building for x86 or amd64 platforms */
+# define LockInit(p)
+# define LockFree(p)
+# define Lock(p)
+# define Unlock(p)
+# define Pause()
+# define lock_t volatile int
+# endif /* x86 && amd64 platforms or rest of the world. */
+# endif /* SMP code */
#else
# define LockInit(p)
# define LockFree(p)
# define Lock(p)
# define Unlock(p)
+# define Pause()
# define lock_t volatile int
#endif /* SMP code */
/* *INDENT-ON* */
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