mirror of https://gitee.com/openkylin/wget.git
69 lines
2.0 KiB
Plaintext
69 lines
2.0 KiB
Plaintext
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# utime_h.m4 serial 3
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dnl Copyright (C) 2017-2019 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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dnl From Bruno Haible.
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AC_DEFUN([gl_UTIME_H],
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[
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AC_REQUIRE([AC_CANONICAL_HOST])
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AC_REQUIRE([gl_UTIME_H_DEFAULTS])
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m4_ifdef([gl_ANSI_CXX], [AC_REQUIRE([gl_ANSI_CXX])])
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AC_CHECK_HEADERS_ONCE([utime.h])
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gl_CHECK_NEXT_HEADERS([utime.h])
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if test $ac_cv_header_utime_h = yes; then
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HAVE_UTIME_H=1
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else
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HAVE_UTIME_H=0
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fi
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AC_SUBST([HAVE_UTIME_H])
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m4_ifdef([gl_POSIXCHECK],
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[UTIME_H=utime.h],
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[UTIME_H=''
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if m4_ifdef([gl_ANSI_CXX], [test "$CXX" != no], [false]); then
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dnl Override <utime.h> always, to support the C++ GNULIB_NAMESPACE.
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UTIME_H=utime.h
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else
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if test $ac_cv_header_utime_h != yes; then
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dnl Provide a substitute <utime.h> file.
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UTIME_H=utime.h
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else
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case "$host_os" in
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mingw*) dnl Need special handling of 'struct utimbuf'.
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UTIME_H=utime.h
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;;
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esac
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fi
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fi
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])
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AC_SUBST([UTIME_H])
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AM_CONDITIONAL([GL_GENERATE_UTIME_H], [test -n "$UTIME_H"])
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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.
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gl_WARN_ON_USE_PREPARE([[#include <utime.h>
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]],
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[utime])
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])
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AC_DEFUN([gl_UTIME_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_UTIME_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_UTIME_H_DEFAULTS],
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[
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GNULIB_UTIME=0; AC_SUBST([GNULIB_UTIME])
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dnl Assume POSIX behavior unless another module says otherwise.
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HAVE_UTIME=1; AC_SUBST([HAVE_UTIME])
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REPLACE_UTIME=0; AC_SUBST([REPLACE_UTIME])
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])
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