Fix compiler warnings when using '-Wall'.

diff --git a/gdb.c b/gdb.c
index c05ebbf1d8e59e0684fb0a47c212651f8d92ad0d..7d04fce2ead54e2cf98f9602ad6262cc6a868fa6 100644 (file)
--- a/gdb.c
+++ b/gdb.c
@@ -1631,7 +1631,7 @@ gdb_init_opts(const char op)      /* 1 = read; 2 = write */
                gdb_category = atoi(gdb_opt_category);
                if ((gdb_category < 1) || (gdb_category > 16))
                    fatal(MYNAME ": Unsupported category \"%s\"!\n", gdb_opt_category);
-               gdb_category = 1 << --gdb_category;
+               gdb_category = 1 << (gdb_category - 1);
            }
            
            gdb_ver = atoi(gdb_opt_ver);