commit 7d15d08c61991c3f7fea822fb567106dde83a166
Author: Andrew Pinski <apinski@cavium.com>
Date:   Wed Feb 11 02:35:45 2015 +0000

    Fix boehm-gc for AARCH64:ILP32
    
    * include/private/gcconfig.h (CPP_WORDSZ): Correct for AARCH64:ILP32.
    (ALIGNMENT): Correct for AARCH64:ILP32.

diff --git a/boehm-gc/include/private/gcconfig.h b/boehm-gc/include/private/gcconfig.h
index 7e081d9..049e24c 100644
--- a/boehm-gc/include/private/gcconfig.h
+++ b/boehm-gc/include/private/gcconfig.h
@@ -1854,9 +1854,14 @@
 # endif
 
 # ifdef AARCH64
-#   define CPP_WORDSZ 64
 #   define MACH_TYPE "AARCH64"
-#   define ALIGNMENT 8
+#   ifdef __ILP32__
+#     define CPP_WORDSZ 32
+#     define ALIGNMENT 4
+#   else
+#     define CPP_WORDSZ 64
+#     define ALIGNMENT 8
+#   endif
 #   ifndef HBLKSIZE
 #     define HBLKSIZE 4096
 #   endif