diff -ru ruby-1.9.2-rc2/configure.in ruby-1.9.2-rc2+iPhone/configure.in
--- ruby-1.9.2-rc2/configure.in	2010-07-10 04:06:05.000000000 +0000
+++ ruby-1.9.2-rc2+iPhone/configure.in	2010-08-08 00:05:23.000000000 +0000
@@ -185,6 +185,9 @@
 	    AC_MSG_CHECKING([for real target cpu])
 	    target=`echo $target | sed "s/^$target_cpu-/-/"`
 	    target_cpu=`$CC -E - 2>/dev/null <<EOF |
+#ifdef __arm__
+"processor-name=arm"
+#endif
 #ifdef __x86_64__
 "processor-name=x86_64"
 #endif