--- a/kernel/eka/euser/us_func.cpp	Mon Oct 18 15:31:10 2010 +0100
+++ b/kernel/eka/euser/us_func.cpp	Wed Oct 20 13:58:28 2010 +0100
@@ -2020,8 +2020,10 @@
 /* RVCT 3.1 and 4.0 read past the end of arrays when unrolling loops.
  * This only happens when using -O3 -Otime, so force to -O2.
  */
+#if __ARMCC_VERSION >= 310000 
 #pragma push
 #pragma O2
+#endif
 
 /**
 Performs a CCITT CRC-32 checksum on the specified data.
@@ -2042,4 +2044,6 @@
 		crc = (crc >> 8) ^ CrcTab32[(crc ^ *p++) & 0xff];
 	aCrc = crc;
 	}
+#if __ARMCC_VERSION >= 310000 
 #pragma pop
+#endif