--- 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"