Add more defines for power-pc detection.
diff --git a/src/utils.h b/src/utils.h
index f52a519..62de6d8 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -58,6 +58,7 @@
     defined(__hppa__) || defined(__ia64__) || \
     defined(__mips__) || \
     defined(__powerpc__) || defined(__ppc__) || defined(__ppc64__) || \
+    defined(_POWER) || defined(_ARC_PPC) || \
     defined(__sparc__) || defined(__sparc) || defined(__s390__) || \
     defined(__SH4__) || defined(__alpha__) || \
     defined(_MIPS_ARCH_MIPS32R2) || \