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46 lines
1.4 KiB
Plaintext
46 lines
1.4 KiB
Plaintext
# sys_select_h.m4 serial 6
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dnl Copyright (C) 2006-2008 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_HEADER_SYS_SELECT],
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[
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AC_REQUIRE([gl_HEADER_SYS_SOCKET])
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AC_REQUIRE([gl_SYS_SELECT_H_DEFAULTS])
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AC_CACHE_CHECK([whether <sys/select.h> is self-contained],
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[gl_cv_header_sys_select_h_selfcontained],
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[
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/select.h>]],
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[[struct timeval b;]])],
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[gl_cv_header_sys_select_h_selfcontained=yes],
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[gl_cv_header_sys_select_h_selfcontained=no])
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])
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if test $gl_cv_header_sys_select_h_selfcontained = yes; then
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SYS_SELECT_H=''
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else
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SYS_SELECT_H='sys/select.h'
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gl_CHECK_NEXT_HEADERS([sys/select.h])
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if test $ac_cv_header_sys_select_h = yes; then
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HAVE_SYS_SELECT_H=1
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else
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HAVE_SYS_SELECT_H=0
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fi
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AC_SUBST([HAVE_SYS_SELECT_H])
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gl_PREREQ_SYS_H_WINSOCK2
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fi
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AC_SUBST([SYS_SELECT_H])
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])
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AC_DEFUN([gl_SYS_SELECT_MODULE_INDICATOR],
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[
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dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
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AC_REQUIRE([gl_SYS_SELECT_H_DEFAULTS])
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GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
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])
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AC_DEFUN([gl_SYS_SELECT_H_DEFAULTS],
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[
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GNULIB_SELECT=0; AC_SUBST([GNULIB_SELECT])
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])
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