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