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attempt to properly check if we can use CPU_SET with sched_setaffinity because some older libc had gnu extensions in the definitions of CPU_SET which we do not allow (FSBUILD-226)

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git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@16263 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris
2010-01-12 18:31:13 +00:00
parent 66c6760d27
commit ea5c0c2111
4 changed files with 21 additions and 2 deletions
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16
build/config/sched_setaffinity.m4 Normal file
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@@ -0,0 +1,16 @@
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 "$ac_cv_func_sched_setaffinity" = "yes" ; then
AC_CACHE_CHECK([whether the CPU_SET and CPU_ZERO macros are defined],
ac_cv_cpu_set_defined,[
AC_TRY_COMPILE( [#include <sched.h>],[ cpu_set_t t; CPU_ZERO(&t); CPU_SET(1,&t); ],
ac_cv_cpu_set_defined=yes,ac_cv_cpu_set_defined=no)])
if test "$ac_cv_cpu_set_defined" = "yes" ; then
AC_DEFINE(HAVE_CPU_SET_MACROS,1,[Define if CPU_SET and CPU_ZERO defined])
fi
fi
])