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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_prog_modprobe.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_MODPROBE
#
# DESCRIPTION
#
# This macro searches for a modprobe command, such as can be found on
# Linux systems with loadable kernel module support. PATH is checked
# first, then the default location(s).
#
# This is one of several autoconf macros intended to assist in configuring
# and installing loadable kernel modules.
#
# LICENSE
#
# Copyright (c) 2008 Kaelin Colclasure <kaelin@acm.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 6
AU_ALIAS([AC_PROG_MODPROBE], [AX_PROG_MODPROBE])
AC_DEFUN([AX_PROG_MODPROBE],[
AC_PATH_PROG(MODPROBE, modprobe, , $PATH:/sbin)
if test -z "$MODPROBE"; then
AC_MSG_WARN([no support for loadable kernel modules])
else
AC_MSG_CHECKING([for module_prefix])
module_prefix=`$MODPROBE -c | grep path.kernel.= \
| sed -e '2,$d' -e 's/.*=//' -e 's/.kernel//'`
AC_MSG_RESULT($module_prefix)
AC_SUBST(module_prefix)
fi
])
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