commit 289ea920a4787c222d1f0232b44662eac35aff1d
Author: Mathieu Malaterre <malat@debian.org>
Date:   Mon Apr 11 09:42:58 2016 +0200

    PPC_64K_PAGES could be set on PPC32 build machine

diff --git a/mono/sgen/sgen-archdep.h b/mono/sgen/sgen-archdep.h
index b4c058f..2fccfde 100644
--- a/mono/sgen/sgen-archdep.h
+++ b/mono/sgen/sgen-archdep.h
@@ -78,10 +78,10 @@
 
 /* MS_BLOCK_SIZE must be a multiple of the system pagesize, which for some
    architectures is 64k.  */
-#if defined(TARGET_POWERPC64)
+//#if defined(TARGET_POWERPC64)
 #define ARCH_MIN_MS_BLOCK_SIZE	(64*1024)
 #define ARCH_MIN_MS_BLOCK_SIZE_SHIFT	16
-#endif
+//#endif
 
 #elif defined(TARGET_ARM)
 
