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annotate m4/sched_h.m4 @ 17040:2b2ed538a898

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update from texinfo
author Karl Berry <karl@freefriends.org>
date Mon, 13 Aug 2012 15:48:24 -0700
parents 8250f2777afc
children e542fd46ad6f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # sched_h.m4 serial 6
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2 dnl Copyright (C) 2008-2012 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 dnl Written by Bruno Haible.
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8
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9 AC_DEFUN([gl_SCHED_H],
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10 [
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11 AC_COMPILE_IFELSE(
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12 [AC_LANG_PROGRAM([[
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13 #include <sched.h>
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14 struct sched_param a;
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15 int b[] = { SCHED_FIFO, SCHED_RR, SCHED_OTHER };
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16 pid_t t1;
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17 ]])],
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18 [SCHED_H=''],
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19 [SCHED_H='sched.h'
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20
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21 gl_CHECK_NEXT_HEADERS([sched.h])
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22
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23 if test $ac_cv_header_sched_h = yes; then
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24 HAVE_SCHED_H=1
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25 else
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26 HAVE_SCHED_H=0
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27 fi
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28 AC_SUBST([HAVE_SCHED_H])
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29
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30 AC_CHECK_TYPE([struct sched_param],
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31 [HAVE_STRUCT_SCHED_PARAM=1], [HAVE_STRUCT_SCHED_PARAM=0],
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32 [#include <sched.h>])
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33 AC_SUBST([HAVE_STRUCT_SCHED_PARAM])
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34
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35 dnl Ensure the type pid_t gets defined.
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36 AC_REQUIRE([AC_TYPE_PID_T])
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37 ])
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38 AC_SUBST([SCHED_H])
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39 AM_CONDITIONAL([GL_GENERATE_SCHED_H], [test -n "$SCHED_H"])
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40 ])