From a7189f01a4a19a9c8852e84b322fc3d8cbda92eb Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Fri, 17 Nov 2006 20:29:00 +0000
Subject: add -Wundef, fix uncovered bugs

---
 procps/renice.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

(limited to 'procps/renice.c')

diff --git a/procps/renice.c b/procps/renice.c
index bcaa94cf1..65674a4ee 100644
--- a/procps/renice.c
+++ b/procps/renice.c
@@ -20,23 +20,11 @@
  */
 
 #include "busybox.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
-#include <errno.h>
-#include <unistd.h>
 #include <sys/resource.h>
 
-#if (PRIO_PROCESS < CHAR_MIN) || (PRIO_PROCESS > CHAR_MAX)
-#error Assumption violated : PRIO_PROCESS value
-#endif
-#if (PRIO_PGRP < CHAR_MIN) || (PRIO_PGRP > CHAR_MAX)
-#error Assumption violated : PRIO_PGRP value
-#endif
-#if (PRIO_USER < CHAR_MIN) || (PRIO_USER > CHAR_MAX)
-#error Assumption violated : PRIO_USER value
-#endif
+void BUG_bad_PRIO_PROCESS(void);
+void BUG_bad_PRIO_PGRP(void);
+void BUG_bad_PRIO_USER(void);
 
 int renice_main(int argc, char **argv)
 {
@@ -49,6 +37,14 @@ int renice_main(int argc, char **argv)
 	unsigned who;
 	char *arg;
 
+	/* Yes, they are not #defines in glibc 2.4! #if won't work */
+	if (PRIO_PROCESS < CHAR_MIN || PRIO_PROCESS > CHAR_MAX)
+		BUG_bad_PRIO_PROCESS();
+	if (PRIO_PGRP < CHAR_MIN || PRIO_PGRP > CHAR_MAX)
+		BUG_bad_PRIO_PGRP();
+	if (PRIO_USER < CHAR_MIN || PRIO_USER > CHAR_MAX)
+		BUG_bad_PRIO_USER();
+
 	arg = *++argv;
 
 	/* Check if we are using a relative adjustment. */
-- 
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