X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/3a5a9d7dc98929e8db17e3e2652ecfd06bef0c67..a6d8eb54f8da26e372aa56951e4731ec00903f77:/math/mp.h

diff --git a/math/mp.h b/math/mp.h
index bb109b53..ad4309e9 100644
--- a/math/mp.h
+++ b/math/mp.h
@@ -37,6 +37,7 @@
 #include <assert.h>
 #include <string.h>
 
+#include <mLib/macros.h>
 #include <mLib/sub.h>
 
 #ifndef CATACOMB_MPW_H
@@ -196,7 +197,8 @@ extern void mp_destroy(mp */*m*/);
 
 extern mp *mp_copy(mp */*m*/);
 
-#define MP_COPY(m) ((m)->ref++, (m))
+#define MP_COPY(m) MUFFLE_WARNINGS_EXPR(GCC_WARNING("-Wunused-value"),	\
+					((m)->ref++, (m)))
 
 /* --- @mp_drop@ --- *
  *