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annotate m4/poll.m4 @ 5611:87c42e194f4a

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Use an all-permissive copyright notice, recommended by RMS.
author Paul Eggert <eggert@cs.ucla.edu>
date Sun, 23 Jan 2005 08:06:57 +0000
parents 4bf5f9b5190a
children c0415917431f
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87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
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1 # poll.m4 serial 3
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2 dnl Copyright (c) 2003 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 AC_DEFUN([gl_FUNC_POLL],
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8 [
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9 AC_CHECK_HEADERS(poll.h)
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10 if test "$ac_cv_header_poll_h" = no; then
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11 POLL_H=poll.h
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12 else
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13 POLL_H=
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14 fi
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15 AC_SUBST([POLL_H])
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16
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17 AC_REPLACE_FUNCS(poll)
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18 if test $ac_cv_func_poll = no; then
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19 gl_PREREQ_POLL
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20 fi
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21 ])
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22
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23 # Prerequisites of lib/poll.c.
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24 AC_DEFUN([gl_PREREQ_POLL],
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25 [
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26 AC_REQUIRE([AC_HEADER_TIME])
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27 AC_CHECK_HEADERS_ONCE(sys/time.h)
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28 ])