# utime_h.m4 serial 1

dnl Copyright (C) 2017-2018 Free Software Foundation, Inc.

dnl This file is free software; the Free Software Foundation

dnl gives unlimited permission to copy and/or distribute it,

dnl with or without modifications, as long as this notice is preserved.

dnl From Bruno Haible.

AC_DEFUN([gl_UTIME_H],

[

  AC_REQUIRE([AC_CANONICAL_HOST])

  AC_REQUIRE([gl_UTIME_H_DEFAULTS])

  AC_CHECK_HEADERS_ONCE([utime.h])

  gl_CHECK_NEXT_HEADERS([utime.h])

  if test $ac_cv_header_utime_h = yes; then

    HAVE_UTIME_H=1

  else

    HAVE_UTIME_H=0

  fi

  AC_SUBST([HAVE_UTIME_H])

  UTIME_H=''

  if test $ac_cv_header_utime_h != yes; then

    dnl Provide a substitute <utime.h> file.

    UTIME_H=utime.h

  else

    case "$host_os" in

      mingw*) dnl Need special handling of 'struct utimbuf'.

        UTIME_H=utime.h

        ;;

    esac

  fi

  AC_SUBST([UTIME_H])

  AM_CONDITIONAL([GL_GENERATE_UTIME_H], [test -n "$UTIME_H"])

  dnl Check for declarations of anything we want to poison if the

  dnl corresponding gnulib module is not in use.

  gl_WARN_ON_USE_PREPARE([[#include <utime.h>

    ]],

    [utime])

])

AC_DEFUN([gl_UTIME_MODULE_INDICATOR],

[

  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.

  AC_REQUIRE([gl_UTIME_H_DEFAULTS])

  gl_MODULE_INDICATOR_SET_VARIABLE([$1])

  dnl Define it also as a C macro, for the benefit of the unit tests.

  gl_MODULE_INDICATOR_FOR_TESTS([$1])

])

AC_DEFUN([gl_UTIME_H_DEFAULTS],

[

  GNULIB_UTIME=0;            AC_SUBST([GNULIB_UTIME])

  dnl Assume POSIX behavior unless another module says otherwise.

  HAVE_UTIME=1;              AC_SUBST([HAVE_UTIME])

  REPLACE_UTIME=0;           AC_SUBST([REPLACE_UTIME])

])