fix build failure on i686

Signed-off-by: Peter Jones <pjones@redhat.com>

0001-util.h-add-int_add-for-32-bit-platforms.patch

@@ -1,14 +1,14 @@
-From ebbff29622bd7c80415ab52749982918e66fa2be Mon Sep 17 00:00:00 2001
+From 181edb851ee929ee4628fc8c053eb0c89d869bd0 Mon Sep 17 00:00:00 2001
 From: Peter Jones <pjones@redhat.com>
 Date: Thu, 11 Aug 2016 15:46:06 -0400
 Subject: [PATCH] util.h: add int_add for 32-bit platforms
 
 ---
- src/util.h | 11 +++++++++++
- 1 file changed, 11 insertions(+)
+ src/util.h | 12 ++++++++++++
+ 1 file changed, 12 insertions(+)
 
 diff --git a/src/util.h b/src/util.h
-index 80f5fab..de972af 100644
+index 80f5fab..a519ac2 100644
 --- a/src/util.h
 +++ b/src/util.h
 @@ -38,12 +38,23 @@
@@ -35,6 +35,14 @@ index 80f5fab..de972af 100644
  #ifndef long_add
  #define long_add(a, b, c) ({					\
  		const long _limit = LONG_MAX;			\
+@@ -92,6 +103,7 @@
+ #endif
+ 
+ #define add(a, b, c) _Generic((c),					\
++			      int *: int_add(a,b,c),			\
+ 			      long *: long_add(a,b,c),			\
+ 			      unsigned long *: ulong_add(a,b,c))
+ 
 -- 
 2.7.4