kc3-lang/gnulib/m4/mode_t.m4

• Show log

  Commit

• Hash : 1bea6655
  Author :
  Date : 2009-09-02T20:07:33
  

  Replace uses of obsolete autoconf macros in Jim's modules.
  
  The Autoconf macros AC_TRY_CPP, AC_TRY_COMPILE, AC_TRY_LINK and
  AC_TRY_RUN have been obsolete since Autoconf 2.55, and each use
  can evoke a warning from autoconf when run with -Wobsolete
  enabled.  They were declared obsolete for good reasons (see
  the `AC_FOO_IFELSE vs AC_TRY_FOO' node in the Autoconf manual,
  recently renamed to `AC_ACT_IFELSE vs AC_TRY_ACT'), and we
  should not continue using the deprecated macros.
  
  * m4/d-type.m4 (gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE): Replace
  obsolete Autoconf macros with modern counterparts.
  * m4/dirfd.m4 (gl_FUNC_DIRFD): Likewise.
  * m4/dos.m4 (gl_AC_DOS): Likewise.
  * m4/fpending.m4 (gl_FUNC_FPENDING): Likewise.
  * m4/fsusage.m4 (gl_FILE_SYSTEM_USAGE): Likewise.
  * m4/getloadavg.m4 (gl_PREREQ_GETLOADAVG): Likewise.
  * m4/jm-winsz1.m4 (gl_WINSIZE_IN_PTEM): Likewise.
  * m4/link-follow.m4 (gl_AC_FUNC_LINK_FOLLOWS_SYMLINK): Likewise.
  * m4/ls-mntd-fs.m4 (gl_LIST_MOUNTED_FILE_SYSTEMS): Likewise.
  * m4/mkdir-slash.m4 (gl_FUNC_MKDIR_TRAILING_SLASH): Likewise.
  * m4/mode_t.m4 (gl_PROMOTED_TYPE_MODE_T): Likewise.
  * m4/rename-dest-slash.m4 (gl_FUNC_RENAME_TRAILING_DEST_SLASH):
  Likewise.
  * m4/rename.m4 (gl_FUNC_RENAME): Likewise.
  * m4/rmdir-errno.m4 (gl_FUNC_RMDIR_NOTEMPTY): Likewise.
  * m4/rpmatch.m4 (gl_PREREQ_RPMATCH): Likewise.
  * m4/st_dm_mode.m4 (AC_STRUCT_ST_DM_MODE): Likewise.
  * m4/stat-time.m4 (gl_STAT_TIME): Likewise.
  * m4/utimes-null.m4 (gl_FUNC_UTIMES_NULL): Likewise.
  
  Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
  

Download

• m4/mode_t.m4

• # mode_t.m4 serial 2
  dnl Copyright (C) 2009 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.
  
  # For using mode_t, it's sufficient to use AC_TYPE_MODE_T and
  # include <sys/types.h>.
  
  # Define PROMOTED_MODE_T to the type that is the result of "default argument
  # promotion" (ISO C 6.5.2.2.(6)) of the type mode_t.
  AC_DEFUN([gl_PROMOTED_TYPE_MODE_T],
  [
    AC_REQUIRE([AC_TYPE_MODE_T])
    AC_CACHE_CHECK([for promoted mode_t type], [gl_cv_promoted_mode_t], [
      dnl Assume mode_t promotes to 'int' if and only if it is smaller than 'int',
      dnl and to itself otherwise. This assumption is not guaranteed by the ISO C
      dnl standard, but we don't know of any real-world counterexamples.
      AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]],
        [[typedef int array[2 * (sizeof (mode_t) < sizeof (int)) - 1];]])],
        [gl_cv_promoted_mode_t='int'],
        [gl_cv_promoted_mode_t='mode_t'])
    ])
    AC_DEFINE_UNQUOTED([PROMOTED_MODE_T], [$gl_cv_promoted_mode_t],
      [Define to the type that is the result of default argument promotions of type mode_t.])
  ])
  

Download