Index: libunwind/trunk/src/Registers.hpp
===================================================================
--- libunwind/trunk/src/Registers.hpp
+++ libunwind/trunk/src/Registers.hpp
@@ -517,6 +517,7 @@
     return false;
   return true;
 #else
+  (void)regNum; // suppress unused parameter warning
   return false;
 #endif
 }
@@ -526,6 +527,7 @@
   assert(validVectorRegister(regNum));
   return _xmm[regNum - UNW_X86_64_XMM0];
 #else
+  (void)regNum; // suppress unused parameter warning
   _LIBUNWIND_ABORT("no x86_64 vector registers");
 #endif
 }
@@ -535,6 +537,7 @@
   assert(validVectorRegister(regNum));
   _xmm[regNum - UNW_X86_64_XMM0] = value;
 #else
+  (void)regNum; (void)value; // suppress unused parameter warnings
   _LIBUNWIND_ABORT("no x86_64 vector registers");
 #endif
 }
@@ -2149,7 +2152,7 @@
   memset(&_vfp_d16_d31, 0, sizeof(_vfp_d16_d31));
 #if defined(__ARM_WMMX)
   _saved_iwmmx = false;
-  _saved_iwmmx_control = false;  
+  _saved_iwmmx_control = false;
   memset(&_iwmmx, 0, sizeof(_iwmmx));
   memset(&_iwmmx_control, 0, sizeof(_iwmmx_control));
 #endif