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

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# $Id$

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

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

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

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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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AC_OUTPUT

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