diff --git a/math/givaro/files/patch-src_kernel_integer_random-integer.h b/math/givaro/files/patch-src_kernel_integer_random-integer.h
new file mode 100644
index 000000000000..901ddd8ea8e3
--- /dev/null
+++ b/math/givaro/files/patch-src_kernel_integer_random-integer.h
@@ -0,0 +1,10 @@
+--- src/kernel/integer/random-integer.h.orig	2021-12-14 10:00:03 UTC
++++ src/kernel/integer/random-integer.h
+@@ -91,7 +91,6 @@ namespace Givaro
+             if (this != &R) {
+                 _bits = R._bits;
+                 _integer = R._integer;
+-                const_cast<Integer_Domain&>(_ring)=R._ring;
+             }
+             return *this;
+         }
diff --git a/math/givaro/files/patch-src_kernel_recint_rfiddling.h b/math/givaro/files/patch-src_kernel_recint_rfiddling.h
new file mode 100644
index 000000000000..5591e9e210bf
--- /dev/null
+++ b/math/givaro/files/patch-src_kernel_recint_rfiddling.h
@@ -0,0 +1,11 @@
+--- src/kernel/recint/rfiddling.h.orig	2021-12-14 10:00:03 UTC
++++ src/kernel/recint/rfiddling.h
+@@ -167,7 +167,7 @@ namespace RecInt
+     template <size_t K>
+     inline rint<K> rint<K>::maxFFLAS() {
+         rint<K> max;
+-        set_highest_bit(max.Low.Value);
++        set_highest_bit(max.Value.Low);
+         return max;
+     }
+