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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],[1.3.0-rc1],[fp@igh-essen.com])

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AC_CONFIG_AUX_DIR([autoconf])

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AM_INIT_AUTOMAKE([-Wall -Werror 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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# Global

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

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branch=trunk

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AC_DEFINE_UNQUOTED(BRANCH, ["$branch"], [Subversion branch])

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AC_SUBST(BRANCH, [$branch])

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    22

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

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# Linux sources

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

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    26

AC_ARG_WITH([linux-dir],

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    AC_HELP_STRING(

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        [--with-linux-dir=<DIR>],

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

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    ),

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    [

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        sourcedir=[$withval]

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    ],

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    [

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        version=[`uname -r`]

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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([Failed to find Linux sources. Use --with-linux-dir!])

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        fi

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

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    ]

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)

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AC_MSG_CHECKING([for Linux kernel sources])

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

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    echo

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

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fi

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# Try to get kernel release string

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if test -r ${sourcedir}/include/config/kernel.release; then

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    kernelrelease=`cat $sourcedir/include/config/kernel.release`

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elif test -r ${sourcedir}/.kernelrelease; then

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    kernelrelease=`cat $sourcedir/.kernelrelease`

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elif test -r ${sourcedir}/include/linux/utsrelease.h; then

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    hdr=${sourcedir}/include/linux/utsrelease.h

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    kernelrelease=`grep UTS_RELEASE $hdr | cut -d " " -f 3- | tr -d \"`

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elif test -r ${sourcedir}/include/linux/version.h; then

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    hdr=${sourcedir}/include/linux/version.h

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    kernelrelease=`grep UTS_RELEASE $hdr | cut -d " " -f 3- | tr -d \"`

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fi

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if test -z "$kernelrelease"; then

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    echo

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    AC_MSG_ERROR([Failed to extract Linux kernel version!])

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fi

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# Extract three numbers from kernel release string

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linuxversion=`echo $kernelrelease | grep -oE "^[[0-9]]+\.[[0-9]]+\.[[0-9]]+"`

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AC_SUBST(LINUX_SOURCE_DIR,[$sourcedir])

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AC_SUBST(LINUX_KERNEL_RELEASE,[$kernelrelease])

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AC_SUBST(LINUX_KERNEL_VERSION,[$linuxversion])

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AC_SUBST(LINUX_MOD_PATH,[/lib/modules/$kernelrelease/ethercat])

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AC_MSG_RESULT([$LINUX_SOURCE_DIR (Kernel $LINUX_KERNEL_RELEASE)])

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

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# 8139too driver

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

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AC_ARG_ENABLE([8139too],

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    AS_HELP_STRING([--enable-8139too],

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                   [Enable 8139too driver]),

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    [

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        case "${enableval}" in

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            yes) enable8139too=1

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                ;;

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            no) enable8139too=0

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                ;;

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            *) AC_MSG_ERROR([Invalid value for --enable-8139too])

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                ;;

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        esac

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    ],

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    [enable8139too=1]

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)

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AM_CONDITIONAL(ENABLE_8139TOO, test "x$enable8139too" = "x1")

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AC_ARG_WITH([8139too-kernel],

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    AC_HELP_STRING(

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        [--with-8139too-kernel=<X.Y.Z>],

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        [8139too kernel (only if differing)]

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    ),

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    [

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        kernel8139too=[$withval]

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    ],

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    [

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        kernel8139too=$linuxversion

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    ]

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)

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if test "x${enable8139too}" = "x1"; then

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    AC_MSG_CHECKING([for kernel for 8139too driver])

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    kernels=`ls -1 devices/ | grep -oE "^8139too-.*-" | cut -d "-" -f 2 | uniq`

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    found=0

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    for k in $kernels; do

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        if test "$kernel8139too" = "$k"; then

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            found=1

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        fi

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    done

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    if test $found -ne 1; then

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        AC_MSG_ERROR([kernel $kernel8139too not available for 8139too driver!])

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    fi

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    AC_MSG_RESULT([$kernel8139too])

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fi

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

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# e100 driver

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

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AC_ARG_ENABLE([e100],

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    AS_HELP_STRING([--enable-e100],

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                   [Enable e100 driver]),

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    [

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        case "${enableval}" in

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            yes) enablee100=1

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                ;;

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            no) enablee100=0

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                ;;

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            *) AC_MSG_ERROR([Invalid value for --enable-e100])

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                ;;

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        esac

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    ],

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    [enablee100=0] # disabled by default

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)

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   151

AM_CONDITIONAL(ENABLE_E100, test "x$enablee100" = "x1")

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   153

AC_ARG_WITH([e100-kernel],

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    AC_HELP_STRING(

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        [--with-e100-kernel=<X.Y.Z>],

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        [e100 kernel (only if differing)]

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    ),

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    [

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        kernele100=[$withval]

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    ],

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    [

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        kernele100=$linuxversion

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    ]

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)

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if test "x${enablee100}" = "x1"; then

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    AC_MSG_CHECKING([for kernel for e100 driver])

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   169

    kernels=`ls -1 devices/ | grep -oE "^e100-.*-" | cut -d "-" -f 2 | uniq`

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    found=0

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    for k in $kernels; do

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        if test "$kernele100" = "$k"; then

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            found=1

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        fi

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    done

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    if test $found -ne 1; then

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        AC_MSG_ERROR([kernel $kernele100 not available for e100 driver!])

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    fi

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    AC_MSG_RESULT([$kernele100])

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fi

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

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# forcedeth driver

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

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   187

AC_ARG_ENABLE([forcedeth],

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    AS_HELP_STRING([--enable-forcedeth],

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                   [Enable forcedeth driver]),

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    [

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        case "${enableval}" in

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            yes) enableforcedeth=1

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                ;;

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            no) enableforcedeth=0

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                ;;

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            *) AC_MSG_ERROR([Invalid value for --enable-forcedeth])

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                ;;

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        esac

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    ],

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    [enableforcedeth=0] # disabled by default!

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)

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AM_CONDITIONAL(ENABLE_FORCEDETH, test "x$enableforcedeth" = "x1")

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AC_ARG_WITH([forcedeth-kernel],

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    AC_HELP_STRING(

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        [--with-forcedeth-kernel=<X.Y.Z>],

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        [forcedeth kernel (only if differing)]

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    ),

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    [

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        kernelforcedeth=[$withval]

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    ],

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    [

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        kernelforcedeth=$linuxversion

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    ]

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)

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if test "x${enableforcedeth}" = "x1"; then

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    AC_MSG_CHECKING([for kernel for forcedeth driver])

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    kernels=`ls -1 devices/ | grep -oE "^forcedeth-.*-" | cut -d "-" -f 2 | uniq`

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    found=0

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    for k in $kernels; do

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        if test "$kernelforcedeth" = "$k"; then

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            found=1

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        fi

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    done

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    if test $found -ne 1; then

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        AC_MSG_ERROR([kernel $kernelforcedeth not available for forcedeth driver!])

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    fi

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    AC_MSG_RESULT([$kernelforcedeth])

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fi

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

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# RTAI path (optional)

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

   290

   291

AC_ARG_WITH([rtai-dir],

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    AC_HELP_STRING(

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        [--with-rtai-dir=<DIR>],

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        [RTAI path (only for RTAI examples)]

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    ),

   296

    [

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        rtaidir=[$withval]

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    ],

   299

    [

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        rtaidir=""

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    ]

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)

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AC_MSG_CHECKING([for RTAI path])

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if test -z "${rtaidir}"; then

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    AC_MSG_RESULT([not specified.])

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else

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    if test \! -r ${rtaidir}/include/rtai.h; then

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        AC_MSG_ERROR([no RTAI installation found in ${rtaidir}!])

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    fi

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    AC_MSG_RESULT([$rtaidir])

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    AC_SUBST(RTAI_DIR,[$rtaidir])

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fi

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

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# MSR path (optional)

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

   319

   320

AC_ARG_WITH([msr-dir],

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    AC_HELP_STRING(

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        [--with-msr-dir=<DIR>],

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        [MSR path (only for MSR example)]

   324

    ),

   325

    [

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        msrdir=[$withval]

   327

    ],

   328

    [

   329

        msrdir=""

   330

    ]

   331

)

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AC_MSG_CHECKING([for MSR path])

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if test -z "${msrdir}"; then

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    AC_MSG_RESULT([not specified.])

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else

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    if test \! -r ${msrdir}/include/msr.h; then

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        AC_MSG_ERROR([no MSR installation found in ${msrdir}!])

   340

    fi

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    AC_MSG_RESULT([$msrdir])

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    AC_SUBST(MSR_DIR,[$msrdir])

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fi

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

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# Debug interface

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

   348

   349

AC_ARG_ENABLE([dbg-if],

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

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

   352

    [

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        case "${enableval}" in

   354

            yes) dbg=1

   355

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

   356

                ;;

   357

            no) dbg=0

   358

                ;;

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

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                ;;

   361

        esac

   362

    ],

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    [dbg=0]

   364

)

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   366

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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   371

# Create config.kbuild

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   373

echo configure: creating config.kbuild...

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   375

cat > config.kbuild <<EOF

   376

# config.kbuild - created by configure

   377

EC_DBG_IF := ${dbg}

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EC_ENABLE_8139TOO := ${enable8139too}

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EC_8139TOO_KERNEL := ${kernel8139too}

   380

EC_ENABLE_E100 := ${enablee100}

   381

EC_E100_KERNEL := ${kernele100}

   382

EC_ENABLE_FORCEDETH := ${enableforcedeth}

   383

EC_FORCEDETH_KERNEL := ${kernelforcedeth}

   386

EC_RTAI_DIR := "${rtaidir}"

   387

EC_MSR_DIR := "${msrdir}"

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EOF

   389

   390

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

   391

   392

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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        script/init.d/Makefile

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        script/sysconfig/Makefile

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        include/Makefile

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        examples/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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        dummy/Makefile

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])

   407

AC_OUTPUT

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