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some distributions declare nice(3) with warn-unused-result; annoy mksh users running into this so they complain to their distros

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tg 2011-07-16 17:41:50 +00:00
parent 09db3d67a2
commit 0168f6dc48
1 changed files with 18 additions and 2 deletions
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20
jobs.c
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@ -22,7 +22,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.78 2011/04/22 12:21:54 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.79 2011/07/16 17:41:50 tg Exp $");
#if HAVE_KILLPG
#define mksh_killpg killpg
@ -353,6 +353,22 @@ j_change(void)
}
#endif
/* run nice(3) and ignore the result */
static void
ksh_nice(int ness)
{
#if defined(__USE_FORTIFY_LEVEL) && (__USE_FORTIFY_LEVEL > 0)
int e;
errno = 0;
/* this is gonna annoy users; complain to your distro, people! */
if (nice(ness) == -1 && (e = errno) != 0)
warningf(false, "%s: %s", "bgnice", strerror(e));
#else
(void)nice(ness);
#endif
}
/* execute tree in child subprocess */
int
exchild(struct op *t, int flags,
@ -499,7 +515,7 @@ exchild(struct op *t, int flags,
#endif
#if HAVE_NICE
if (Flag(FBGNICE) && (flags & XBGND))
(void)nice(4);
ksh_nice(4);
#endif
if ((flags & XBGND)
#ifndef MKSH_UNEMPLOYED