Hello again Ruediger. Please see the attached patch which seems to work when I build-tested it on kfreebsd. If you think it does the right thing please sign off on it and forward it upstream!
Regards, Andreas Henriksson
>From 552a84db9bce21bfde55ba372b4b3e2e9f6b7170 Mon Sep 17 00:00:00 2001 From: Andreas Henriksson <andr...@fatal.se> Date: Sun, 8 May 2016 09:21:21 +0200 Subject: [PATCH] build: allow building chrt on non-linux (missing sched_setattr) Since util-linux 2.28 the chrt is no longer built on Debian kFreeBSD and hurd architectures, because sched_setattr is not found as checked in configure.ac since commit ee20c303ac4336b56 "build-sys: chrt requires a sched_set* function" The sched_setattr function not being available seems to already be handled by the schedutils/chrt.c code (and HAVE_SCHED_SETATTR is checked/defined in configure.ac as well), thus that function should not be required to build chrt - only sched_setscheduler. This patch has been build-tested on Debian GNU/kFreeBSD. Signed-off-by: Andreas Henriksson <andr...@fatal.se> --- configure.ac | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/configure.ac b/configure.ac index b48a24a..28fbd9a 100644 --- a/configure.ac +++ b/configure.ac @@ -1833,13 +1833,11 @@ UL_REQUIRES_SYSCALL_CHECK([taskset], AM_CONDITIONAL([BUILD_TASKSET], [test "x$build_taskset" = xyes]) -have_schedsetter=no -AS_IF([test "x$ac_cv_func_sched_setscheduler" = xyes], [have_schedsetter=yes], - [test "x$ac_cv_func_sched_setattr" = xyes], [have_schedsetter=yes]) - UL_BUILD_INIT([chrt], [check]) UL_REQUIRES_BUILD([chrt], [schedutils]) -UL_REQUIRES_HAVE([chrt], [schedsetter], [sched_set functions]) +UL_REQUIRES_SYSCALL_CHECK([chrt], + [UL_CHECK_SYSCALL([sched_setscheduler])], + [sched_setscheduler]) AM_CONDITIONAL([BUILD_CHRT], [test "x$build_chrt" = xyes]) AS_IF([test "x$build_chrt" = xyes], [ -- 2.8.1
