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#------------------------------------------------------------------------------

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# $Id$

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#------------------------------------------------------------------------------

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AC_PREREQ(2.59)

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AC_INIT([ethercat],[1.1],[fp@igh-essen.com])

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AC_CONFIG_AUX_DIR([autoconf])

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AM_INIT_AUTOMAKE([-Wall -Werror foreign dist-bzip2])

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AC_PREFIX_DEFAULT([/opt/etherlab])

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AC_CONFIG_HEADERS([config.h])

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AC_CONFIG_SRCDIR([config.h.in])

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#------------------------------------------------------------------------------

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# Linux sources

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#------------------------------------------------------------------------------

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AC_ARG_WITH([linux],

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    AC_HELP_STRING(

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        [--with-linux=<version>],

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        [Linux kernel version @<:@running kernel@:>@]

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    ),

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    [version=[$withval]],

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    [version=[`uname -r`]]

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)

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AC_MSG_CHECKING([for Linux kernel])

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modulesdir=/lib/modules/${version}

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if test \! -d ${modulesdir} || test \! -d ${modulesdir}/build; then

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   echo

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   AC_MSG_ERROR([Invalid modules directory ${modulesdir}])

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fi

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sourcedir=`cd ${modulesdir}/build && pwd -P`

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if test \! -r ${sourcedir}/Makefile; then

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   echo

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   AC_MSG_ERROR([No Linux kernel sources in $sourcedir])

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fi

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AC_SUBST(LINUX_KERNEL_VERSION,[$version])

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AC_SUBST(LINUX_SOURCE_DIR,[$sourcedir])

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AC_SUBST(LINUX_MODULES_DIR,[$modulesdir])

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AC_MSG_RESULT($LINUX_KERNEL_VERSION)

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#------------------------------------------------------------------------------

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# Depmod

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#------------------------------------------------------------------------------

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AC_PATH_PROG([DEPMOD], [depmod],, [$PATH:/sbin:/usr/sbin:/usr/local/sbin])

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if test -z "$DEPMOD"; then

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   AC_MSG_WARN([depmod was not found!]);

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fi

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#------------------------------------------------------------------------------

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# Debug interface

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#------------------------------------------------------------------------------

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AC_ARG_ENABLE([debug-if],

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		AS_HELP_STRING([--enable-dbg-if],

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						[Create a debug interface for each master @<:@NO@:>@]),

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		[case "${enableval}" in

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			  yes) dbg=1

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				   AC_DEFINE([EC_DBG_IF], [1], [Debug interfaces enabled])

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				   ;;

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			  no)  dbg=0

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				   ;;

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			  *)   AC_MSG_ERROR([Invalid value for --enable-dbg-if])

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				   ;;

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		esac],

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		[dbg=0]

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)

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AM_CONDITIONAL(EC_DBG_IF, test "x$dbg" = x1)

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AC_SUBST([EC_DBG_IF],${dbg})

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#------------------------------------------------------------------------------

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AC_CONFIG_FILES([

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        Makefile

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        master/Makefile

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        devices/Makefile

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        script/Makefile

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        include/Makefile

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        examples/mini/Makefile

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        examples/rtai/Makefile

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        examples/msr/Makefile

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])

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AC_OUTPUT

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#------------------------------------------------------------------------------