From: Antoine Leca <antoine.leca.1@gmail.com>
Date: Mon, 25 Oct 2010 17:03:36 +0000 (+0100)
Subject: libc!setmode.c: Avoid #if inside macro call
X-Git-Tag: v3.2.0~528
X-Git-Url: http://zhaoyanbai.com/repos/doc/mandoc_char.7.html?a=commitdiff_plain;h=6d8d7a88b273fc8d9e99d2ddc372d769d767d353;p=minix.git

libc!setmode.c: Avoid #if inside macro call

#if inside macro call is undefined behaviour under the C standard
(3.8.3 paragraph 10 for C90, 6.8.10 paragraph 11 for C99).
The same effect can be achieved with a slightly more verbose construct,
putting the whole macro call inside the #ifdef/#else/#endif.
---

diff --git a/lib/libc/other/setmode.c b/lib/libc/other/setmode.c
index 3eb154cbf..1c4c4bffd 100644
--- a/lib/libc/other/setmode.c
+++ b/lib/libc/other/setmode.c
@@ -236,11 +236,11 @@ setmode(p)
 			goto out;
 		}
 		perm = (mode_t)lval;
-		ADDCMD('=', (STANDARD_BITS
 #ifdef S_ISTXT
-		|S_ISTXT
+		ADDCMD('=', (STANDARD_BITS|S_ISTXT), perm, mask);
+#else
+		ADDCMD('=', (STANDARD_BITS), perm, mask);
 #endif
-		), perm, mask);
 		set->cmd = 0;
 		return (saveset);
 	}