From: Mike Frysinger <vapier@gentoo.org>
Date: Sun, 26 Aug 2007 11:22:56 +0000 (-0400)
Subject: taskset: check for existence of sched_getaffinity
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=19a224ad6aaed8b4547b85255d8deae80e8336da;p=util-linux

taskset: check for existence of sched_getaffinity

Some architectures do no reliably provide sched_getaffinity, so make sure the
define exists before we try using it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---

diff --git a/configure.ac b/configure.ac
index 36923703..00157e2d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -196,6 +196,16 @@ int test = SYS_pivot_root;
 [AM_CONDITIONAL(HAVE_PIVOT_ROOT, false)])
 
 
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <sys/syscall.h>
+#include <unistd.h>
+]], [[
+int test = SYS_sched_getaffinity;
+]])],
+[AM_CONDITIONAL(HAVE_SCHED_GETAFFINITY, true)],
+[AM_CONDITIONAL(HAVE_SCHED_GETAFFINITY, false)])
+
+
 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
 #include <time.h>
 #include <unistd.h>
diff --git a/schedutils/Makefile.am b/schedutils/Makefile.am
index 03e3080b..e93d31b3 100644
--- a/schedutils/Makefile.am
+++ b/schedutils/Makefile.am
@@ -2,7 +2,12 @@ include $(top_srcdir)/config/include-Makefile.am
 
 if BUILD_SCHEDUTILS
 
-usrbinexec_PROGRAMS = chrt ionice taskset
-man_MANS = chrt.1 ionice.1 taskset.1
+usrbinexec_PROGRAMS = chrt ionice
+man_MANS = chrt.1 ionice.1
+
+if HAVE_SCHED_GETAFFINITY
+usrbinexec_PROGRAMS += taskset
+man_MANS += taskset.1
+endif
 
 endif