--- a/ports/sysdeps/unix/arm/sysdep.S  2016-11-05 11:44:45.561945344 +0100
+++ b/ports/sysdeps/unix/arm/sysdep.S  2016-11-05 11:44:19.542069815 +0100
@@ -37,7 +37,7 @@
       moveq r0, $EAGAIN       /* Yes; translate it to EAGAIN.  */
 #endif
 
-#ifndef IS_IN_rtld
+#if !IS_IN (rtld)
       mov ip, lr
       cfi_register (lr, ip)
       mov r1, r0