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44 lines
1.4 KiB
Plaintext
44 lines
1.4 KiB
Plaintext
# termios_h.m4 serial 4
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dnl Copyright (C) 2010-2017 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_TERMIOS_H],
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[
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dnl Use AC_REQUIRE here, so that the default behavior below is expanded
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dnl once only, before all statements that occur in other macros.
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AC_REQUIRE([gl_TERMIOS_H_DEFAULTS])
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gl_CHECK_NEXT_HEADERS([termios.h])
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if test $ac_cv_header_termios_h != yes; then
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HAVE_TERMIOS_H=0
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fi
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dnl Ensure the type pid_t gets defined.
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AC_REQUIRE([AC_TYPE_PID_T])
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dnl Check for declarations of anything we want to poison if the
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dnl corresponding gnulib module is not in use, and which is not
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dnl guaranteed by C89.
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gl_WARN_ON_USE_PREPARE([[#include <termios.h>]],
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[tcgetsid])
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])
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AC_DEFUN([gl_TERMIOS_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_TERMIOS_H_DEFAULTS])
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gl_MODULE_INDICATOR_SET_VARIABLE([$1])
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dnl Define it also as a C macro, for the benefit of the unit tests.
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gl_MODULE_INDICATOR_FOR_TESTS([$1])
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])
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AC_DEFUN([gl_TERMIOS_H_DEFAULTS],
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[
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GNULIB_TCGETSID=0; AC_SUBST([GNULIB_TCGETSID])
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dnl Assume proper GNU behavior unless another module says otherwise.
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HAVE_DECL_TCGETSID=1; AC_SUBST([HAVE_DECL_TCGETSID])
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HAVE_TERMIOS_H=1; AC_SUBST([HAVE_TERMIOS_H])
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])
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