Index: head/contrib/binutils/opcodes/arm-dis.c
===================================================================
--- head/contrib/binutils/opcodes/arm-dis.c
+++ head/contrib/binutils/opcodes/arm-dis.c
@@ -1767,7 +1767,7 @@
 
 			/* Is ``imm'' a negative number?  */
 			if (imm & 0x40)
-			  imm |= (-1 << 7);
+			  imm |= -(1 << 7);
 
 			func (stream, "%d", imm);
 		      }