/usr/share/aclocal/ax_silent_mode.m4 is in autoconf-archive 20170928-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 | # ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_silent_mode.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_SILENT_MODE(on|off)
#
# DESCRIPTION
#
# Temporarily disable console output when running Autoconf macros. For
# example:
#
# AX_SILENT_MODE(on) dnl disable console output
# AC_PROG_CXX
# AX_SILENT_MODE(off) dnl enable console output
# AC_PROG_RANLIB
#
# LICENSE
#
# Copyright (c) 2008 Peter Simons <simons@cryp.to>
# Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 8
AC_DEFUN([AX_SILENT_MODE],
[
case "$1" in
on)
exec 6>/dev/null
;;
off)
exec 6>&1
;;
*)
AC_MSG_ERROR([Silent mode can only be switched "on" or "off".])
;;
esac
])dnl
|