patch 7.4.1763
Problem:    Coverity: useless assignment.
Solution:   Add #if 0.
diff --git a/src/spell.c b/src/spell.c
index 3f23bf9..259f6d7 100644
--- a/src/spell.c
+++ b/src/spell.c
@@ -1649,7 +1649,9 @@
 		    }
 		}
 #endif
+#if 0 /* Disabled, see below */
 		c = mip->mi_compoff;
+#endif
 		++mip->mi_complen;
 		if (flags & WF_COMPROOT)
 		    ++mip->mi_compextra;