--- gcc/config/i386/t-aix	2018/04/24 18:10:27	1.1
+++ gcc/config/i386/t-aix	2018/04/24 18:17:19	1.1.1.2
@@ -1,6 +1,4 @@
 # target: IBM AIX PS/2 1.3.0 with gas-2.x and gnu ld 2.x
-# The one that comes with the system is POSIX-compliant.
-LIMITS_H =
 
 # For aix ps/2 we build crtbegin.o and crtend.o which serve to add begin and
 # end labels to the .ctors and .dtors section when we link using gcc.