Index: /branches/arm/lisp-kernel/platform-linuxarm.h
===================================================================
--- /branches/arm/lisp-kernel/platform-linuxarm.h	(revision 13731)
+++ /branches/arm/lisp-kernel/platform-linuxarm.h	(revision 13732)
@@ -34,5 +34,5 @@
 /* xp accessors */
 #define xpGPRvector(x) ((natural *)&((x)->uc_mcontext.arm_r0))
-#define xpGPR(x,gprno) xpGPRvector[gprno]
+#define xpGPR(x,gprno) (xpGPRvector(x))[gprno]
 #define xpPC(x) xpGPR(x,15)
 #define xpPSR(x) xpGPR(x,16)