view m4/tcgetsid.m4 @ 40198:5a34193cbc07

long-options: add parse_gnu_standard_options_only Discussed in https://bugs.gnu.org/33468 . * lib/long-options.c (parse_long_options): Use EXIT_SUCCESS instead of 0. (parse_gnu_standard_options_only): Add function to process the GNU default options --help and --version and fail for any other unknown long or short option. See https://gnu.org/prep/standards/html_node/Command_002dLine-Interfaces.html . * lib/long-options.h (parse_gnu_standard_options_only): Declare it. * modules/long-options (depends-on): Add stdbool, exitfail. * top/maint.mk (sc_prohibit_long_options_without_use): Update syntax-check rule, add new function name.
author Bernhard Voelker <mail@bernhard-voelker.de>
date Thu, 29 Nov 2018 09:06:26 +0100
parents b06060465f09
children
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# tcgetsid.m4 serial 5
dnl Copyright (C) 2010-2019 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.

AC_DEFUN([gl_FUNC_TCGETSID],
[
  AC_REQUIRE([gl_TERMIOS_H_DEFAULTS])

  dnl Persuade glibc <termios.h> to declare tcgetsid().
  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])

  AC_CHECK_DECLS([tcgetsid], , , [[#include <termios.h>]])
  if test $ac_cv_have_decl_tcgetsid = no; then
    HAVE_DECL_TCGETSID=0
  fi

  dnl We can't use AC_CHECK_FUNC here, because tcgetsid() is defined as a
  dnl static inline function when compiling for Android 4.4 or older.
  AC_CACHE_CHECK([for tcgetsid], [gl_cv_func_tcgetsid],
    [AC_LINK_IFELSE(
       [AC_LANG_PROGRAM(
          [[#include <termios.h>]],
          [[return tcgetsid(0);]])
       ],
       [gl_cv_func_tcgetsid=yes],
       [gl_cv_func_tcgetsid=no])
    ])
  if test $gl_cv_func_tcgetsid = yes; then
    HAVE_TCGETSID=1
  else
    HAVE_TCGETSID=0
  fi
])

# Prerequisites of lib/tcgetsid.c.
AC_DEFUN([gl_PREREQ_TCGETSID], [
  :
])