1

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

     2

# $Id$

     3

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

     4

     5

AC_PREREQ(2.59)

     6

AC_INIT([ethercat],[1.1.1],[fp@igh-essen.com])

     7

AC_CONFIG_AUX_DIR([autoconf])

     8

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

     9

AC_PREFIX_DEFAULT([/opt/etherlab])

    10

AC_CONFIG_HEADERS([config.h])

    11

AC_CONFIG_SRCDIR([config.h.in])

    12

    13

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

    14

# Global

    15

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

    16

    17

branch=stable

    18

    19

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

    20

AC_SUBST(BRANCH, [$branch])

    21

    22

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

    23

# Linux sources

    24

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

    25

    26

AC_ARG_WITH([linux-dir],

    27

    AC_HELP_STRING(

    28

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

    29

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

    30

    ),

    31

    [

    32

        sourcedir=[$withval]

    33

    ],

    34

    [

    35

        version=[`uname -r`]

    36

        modulesdir=/lib/modules/${version}

    37

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

    38

           echo

    39

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

    40

        fi

    41

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

    42

    ]

    43

)

    44

    45

AC_MSG_CHECKING([for Linux kernel sources])

    46

    47

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

    48

    echo

    49

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

    50

fi

    51

    52

# Try to get kernel release string

    53

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

    54

    kernelrelease=`cat $sourcedir/.kernelrelease`

    55

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

    56

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

    57

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

    58

fi

    59

    60

if test -z "$kernelrelease"; then

    61

    echo

    62

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

    63

fi

    64

    65

# Extract three numbers from kernel release string

    66

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

    67

    68

AC_SUBST(LINUX_SOURCE_DIR,[$sourcedir])

    69

AC_SUBST(LINUX_KERNEL_RELEASE,[$kernelrelease])

    70

AC_SUBST(LINUX_KERNEL_VERSION,[$linuxversion])

    71

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

    72

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

    73

    74

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

    75

# 8139too Kernel

    76

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

    77

    78

AC_ARG_WITH([8139too-kernel],

    79

    AC_HELP_STRING(

    80

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

    81

        [8139too kernel (only if differing)]

    82

    ),

    83

    [

    84

        kernel8139too=[$withval]

    85

    ],

    86

    [

    87

        kernel8139too=$linuxversion

    88

    ]

    89

)

    90

    91

AC_MSG_CHECKING([for kernel for 8139too driver])

    92

    93

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

    94

found=0

    95

for k in $kernels; do

    96

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

    97

        found=1

    98

    fi

    99

done

   100

if test $found -ne 1; then

   101

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

   102

fi

   103

   104

AC_MSG_RESULT([$kernel8139too])

   105

   106

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

   107

# RTAI path (optional)

   108

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

   109

   110

AC_ARG_WITH([rtai-dir],

   111

    AC_HELP_STRING(

   112

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

   113

        [RTAI path (only for RTAI examples)]

   114

    ),

   115

    [

   116

        rtaidir=[$withval]

   117

    ],

   118

    [

   119

        rtaidir=""

   120

    ]

   121

)

   122

   123

AC_MSG_CHECKING([for RTAI path])

   124

   125

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

   126

    AC_MSG_RESULT([not specified.])

   127

else

   128

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

   129

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

   130

    fi

   131

    AC_MSG_RESULT([$rtaidir])

   132

    AC_SUBST(RTAI_DIR,[$rtaidir])

   133

fi

   134

   135

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

   136

# MSR path (optional)

   137

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

   138

   139

AC_ARG_WITH([msr-dir],

   140

    AC_HELP_STRING(

   141

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

   142

        [MSR path (only for MSR example)]

   143

    ),

   144

    [

   145

        msrdir=[$withval]

   146

    ],

   147

    [

   148

        msrdir=""

   149

    ]

   150

)

   151

   152

AC_MSG_CHECKING([for MSR path])

   153

   154

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

   155

    AC_MSG_RESULT([not specified.])

   156

else

   157

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

   158

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

   159

    fi

   160

    AC_MSG_RESULT([$msrdir])

   161

    AC_SUBST(MSR_DIR,[$msrdir])

   162

fi

   163

   164

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

   165

# Debug interface

   166

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

   167

   168

AC_ARG_ENABLE([dbg-if],

   169

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

   170

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

   171

    [

   172

        case "${enableval}" in

   173

            yes) dbg=1

   174

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

   175

                ;;

   176

            no) dbg=0

   177

                ;;

   178

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

   179

                ;;

   180

        esac

   181

    ],

   182

    [dbg=0]

   183

)

   184

   185

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

   186

AC_SUBST([EC_DBG_IF],${dbg})

   187

   188

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

   189

   190

# Create config.kbuild

   191

   192

echo configure: creating config.kbuild...

   193

   194

cat > config.kbuild <<EOF

   195

# config.kbuild - created by configure

   196

EC_DBG_IF := ${dbg}

   197

EC_8139TOO_KERNEL := ${kernel8139too}

   198

EC_RTAI_DIR := "${rtaidir}"

   199

EC_MSR_DIR := "${msrdir}"

   200

EOF

   201

   202

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

   203

   204

AC_CONFIG_FILES([

   205

        Makefile

   206

        master/Makefile

   207

        devices/Makefile

   208

        script/Makefile

   209

        include/Makefile

   210

        examples/Makefile

   211

        examples/mini/Makefile

   212

        examples/rtai/Makefile

   213

        examples/msr/Makefile

   214

])

   215

AC_OUTPUT

   216

   217

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