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1 # sleep.m4 serial 2
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2 dnl Copyright (C) 2007-2008 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_SLEEP],
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8 [
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9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
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10 dnl We expect to see the declaration of sleep() in a header file.
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11 dnl Older versions of mingw have a sleep() function that is an alias to
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12 dnl _sleep() in MSVCRT. It has a different signature than POSIX sleep():
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13 dnl it takes the number of milliseconds as argument and returns void.
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14 dnl mingw does not declare this function.
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15 AC_CHECK_DECLS([sleep], , , [#include <unistd.h>])
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16 if test $ac_cv_have_decl_sleep != yes; then
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17 HAVE_SLEEP=0
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18 AC_LIBOBJ([sleep])
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19 gl_PREREQ_SLEEP
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20 fi
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21 ])
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22
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23 # Prerequisites of lib/sleep.c.
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24 AC_DEFUN([gl_PREREQ_SLEEP], [:])
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