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- AC_DEFUN([AX_HAVE_CPU_SET], [
- #
- # Check for the Linux functions for controlling processor affinity.
- #
- # LINUX: sched_setaffinity
- AC_CHECK_FUNCS(sched_setaffinity sched_getaffinity)
- if test "$ac_cv_func_sched_setaffinity" = "yes" ; then
- AC_CACHE_CHECK([whether the CPU_SET and CPU_ZERO macros are defined],
- ac_cv_cpu_set_defined,[
- saved_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS $SWITCH_AM_CFLAGS $SWITCH_ANSI_CFLAGS -D_GNU_SOURCE"
- AC_TRY_COMPILE( [#include <sched.h>],[ cpu_set_t t; CPU_ZERO(&t); CPU_SET(1,&t); ],
- ac_cv_cpu_set_defined=yes,ac_cv_cpu_set_defined=no)])
- if test "$ac_cv_cpu_set_defined" = "yes" ; then
- AC_DEFINE(HAVE_CPU_SET_MACROS,1,[Define if CPU_SET and CPU_ZERO defined])
- fi
- CFLAGS="$saved_CFLAGS"
- fi
- ])
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