--- src/kernel/ring/modular-log16.h.orig	2016-07-30 03:42:59.000000000 -0600
+++ src/kernel/ring/modular-log16.h	2016-10-20 16:27:04.102542506 -0600
@@ -24,6 +24,7 @@
 #include "givaro/givarray0.h"
 #include "givaro/givranditer.h"
 #include "givaro/modular-general.h"
+#undef iszero
 
 namespace Givaro
 {
--- src/library/vector/givvectordense.h.orig	2016-07-30 03:42:59.000000000 -0600
+++ src/library/vector/givvectordense.h	2016-10-20 16:29:03.957898263 -0600
@@ -21,6 +21,7 @@
 #include "givaro/givvectorsparse.h"
 #include "givaro/givstoragedense.h"
 #include "givaro/givelem.h"
+#undef iszero
 namespace Givaro {
 #pragma message "#warning this file will probably not compile"
 
--- src/library/vector/givvectorsparse.h.orig	2016-07-30 03:42:59.000000000 -0600
+++ src/library/vector/givvectorsparse.h	2016-10-20 16:29:27.779981403 -0600
@@ -22,6 +22,7 @@
 #include "givaro/givvector.h"
 #include "givaro/givstoragesparse.h"
 #include "givaro/givelem.h"
+#undef iszero
 namespace Givaro {
 #pragma message "#warning this file will probably not compile"