1 | dnl ======================================================================================
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2 | dnl Author: Francesco Montorsi
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3 | dnl RCS-ID: $Id: vtk.m4,v 1.1 2005/11/20 14:47:40 frm Exp $
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4 | dnl
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5 | dnl Implements the AM_OPTIONS_VTK, to add the --with-vtk=path option, and the
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6 | dnl AM_PATH_VTK macro used to detect VTK presence, location and version.
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7 | dnl ======================================================================================
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8 |
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9 |
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10 |
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11 | dnl
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12 | dnl AM_OPTIONS_VTK
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13 | dnl ------------------------------------------------------------------------
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14 | dnl Adds the --with-vtk=path option to the configure options
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15 | dnl Adds the --with-vtk-libdir=path option to the configure options
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16 | dnl
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17 | AC_DEFUN([AM_OPTIONS_VTK],
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18 | [
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19 | AC_ARG_WITH([vtk],
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20 | [AC_HELP_STRING([--with-vtk],
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21 | [The prefix where VTK is installed (default is /usr)])],
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22 | [with_vtk=$withval],
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23 | [with_vtk="/usr"])
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24 |
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25 | AC_ARG_WITH([vtklibdir],
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26 | [AC_HELP_STRING([--with-vtk-libdir],
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27 | [The prefix where VTK libs areA installed (default is /usr/lib)])],
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28 | [with_vtk_libdir=$withval],
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29 | [with_vtk_libdir="/usr/lib"])
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30 |
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31 | AC_ARG_WITH([vtk-version],
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32 | [AC_HELP_STRING([--with-vtk-version],
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33 | [VTK's include directory name is vtk-suffix, e.g. vtk-5.0/. What's the suffix? (Default -5.0)])],
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34 | [vtk_suffix=$withval],
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35 | [vtk_suffix="-5.0"])
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36 |
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37 | ])# AM_OPTIONS_VTK
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38 |
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39 |
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40 |
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41 | dnl
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42 | dnl AM_PATH_VTK([minimum-version], [action-if-found], [action-if-not-found])
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43 | dnl ------------------------------------------------------------------------
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44 | dnl
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45 | dnl NOTE: [minimum-version] must be in the form [X.Y.Z]
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46 | dnl
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47 | AC_DEFUN([AM_PATH_VTK],
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48 | [
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49 | dnl do we want to check for VTK ?
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50 | if test "$with_vtk" = "yes"; then
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51 | dnl in case user wrote --with-vtk=yes
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52 | with_vtk="/usr/local"
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53 | fi
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54 |
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55 | if test "$with_vtk" != "no"; then
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56 | dnl
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57 | dnl A path was provided in $with_vtk...try hard to find the VTK library {{{
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58 | VTK_PREFIX="$with_vtk"
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59 |
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60 | vtk_save_CPPFLAGS=$CPPFLAGS
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61 | CPPFLAGS="$CPPFLAGS -I$VTK_PREFIX/include/vtk$vtk_suffix"
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62 | AC_CHECK_HEADER([vtkCommonInstantiator.h], [vtkFound="OK"])
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63 | CPPFLAGS=$vtk_save_CPPFLAGS
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64 | AC_MSG_CHECKING([if VTK is installed in $VTK_PREFIX])
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65 |
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66 | if test -z "$vtkFound"; then
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67 | dnl
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68 | dnl VTK was not found! ...execute $3 unconditionally {{{
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69 | AC_MSG_RESULT([no])
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70 | $3
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71 | dnl }}}
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72 | dnl
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73 | else
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74 | dnl
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75 | dnl VTK was found! ...execute $2 if version matches {{{
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76 | AC_MSG_RESULT([yes])
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77 |
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78 | dnl these are the VTK libraries of a default build
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79 | VTK_LIBS="-lvtkDICOMParser -lvtkFiltering -lvtkftgl -lvtkGraphics -lvtkHybrid -lvtkImaging -lvtkIO -lvtkRendering -lvtkCommon -lvtksys"
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80 |
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81 | dnl set VTK c,cpp,ld flags
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82 | VTK_CFLAGS="-I$VTK_PREFIX/include/vtk$vtk_suffix"
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83 | VTK_CXXFLAGS="$VTK_CFLAGS"
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84 |
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85 | dnl now, eventually check version {{{
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86 | if test -n "$1"; then
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87 | dnl
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88 | dnl A version was specified... parse the version string in $1 {{{
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89 |
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90 | dnl The version of VTK that we need: {{{
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91 | maj=`echo $1 | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
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92 | min=`echo $1 | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
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93 | rel=`echo $1 | sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
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94 | AC_MSG_CHECKING([if VTK version is at least $maj.$min.$rel])
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95 | dnl }}}
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96 |
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97 | dnl Compare required version of VTK against installed version: {{{
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98 | dnl
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99 | dnl Note that in order to be able to compile the following test program,
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100 | dnl we need to add to the current flags, the VTK settings...
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101 | OLD_CFLAGS=$CFLAGS
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102 | OLD_CXXFLAGS=$CXXFLAGS
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103 | OLD_LDFLAGS=$LDFLAGS
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104 | CFLAGS="$VTK_CFLAGS $CFLAGS"
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105 | CXXFLAGS="$VTK_CXXFLAGS $CXXFLAGS"
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106 | LDFLAGS="$VTK_LDFLAGS $LDFLAGS"
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107 | dnl
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108 | dnl check if the installed VTK is greater or not
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109 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
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110 | [
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111 | #include <vtkConfigure.h>
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112 | #include <stdio.h>
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113 | ],
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114 | [
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115 | printf("VTK version is: %d.%d.%d", VTK_MAJOR_VERSION, VTK_MINOR_VERSION, VTK_BUILD_VERSION);
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116 | #if VTK_MAJOR_VERSION < $maj
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117 | #error Installed VTK is too old !
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118 | #endif
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119 | #if VTK_MAJOR_VERSION == $maj && VTK_MINOR_VERSION < $min
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120 | #error Installed VTK is too old !
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121 | #endif
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122 | #if VTK_MAJOR_VERSION == $maj && VTK_MINOR_VERSION == $min && VTK_BUILD_VERSION < $rel
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123 | #error Installed VTK is too old !
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124 | #endif
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125 | ])
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126 | ], [vtkVersion="OK"])
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127 | dnl
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128 | if test "$vtkVersion" = "OK"; then
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129 | AC_MSG_RESULT([yes])
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130 | else
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131 | AC_MSG_RESULT([no])
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132 | fi
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133 | dnl restore all flags without VTK values
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134 | CFLAGS=$OLD_CFLAGS
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135 | CXXFLAGS=$OLD_CXXFLAGS
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136 | LDFLAGS=$OLD_LDFLAGS
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137 | dnl }}}
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138 | else :
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139 | dnl
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140 | dnl A target version number was not provided... execute $2 unconditionally {{{
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141 |
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142 | dnl if we don't have to check for minimum version (because the user did not set that option),
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143 | dnl then we can execute here the block action-if-found
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144 | #CFLAGS="$VTK_CFLAGS $CFLAGS"
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145 | #CXXFLAGS="$VTK_CXXFLAGS $CXXFLAGS"
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146 | #LDFLAGS="$VTK_LDFLAGS $LDFLAGS"
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147 | skiplinktest="OK"
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148 | $2
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149 | dnl }}}
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150 | dnl
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151 | fi
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152 | dnl }}}
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153 |
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154 | dnl }}}
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155 | dnl
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156 | if test ! "$skiplinktest" = "OK"; then
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157 | for libfolder in $with_vtk_libdir /usr/lib $VTK_PREFIX/lib/vtk$vtk_suffix /usr/local/lib; do
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158 | VTK_LDFLAGS="-L$libfolder -Wl,-rpath=$libfolder"
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159 | dnl Execute $2 if version is ok, otherwise execute $3 {{{
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160 | OLD_CFLAGS=$CFLAGS
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161 | OLD_CXXFLAGS=$CXXFLAGS
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162 | OLD_LDFLAGS=$LDFLAGS
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163 | OLD_LIBS=$LIBS
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164 | CFLAGS="$VTK_CFLAGS $CFLAGS"
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165 | CXXFLAGS="$VTK_CXXFLAGS $CXXFLAGS"
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166 | LDFLAGS="$VTK_LDFLAGS $LDFLAGS"
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167 | LIBS="$VTK_LIBS $LIBS"
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168 | if test "$vtkVersion" = "OK"; then
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169 | AC_MSG_CHECKING([linking with VTK libs in folder $libfolder])
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170 | AC_LINK_IFELSE([AC_LANG_PROGRAM(
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171 | [
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172 | #include <vtkAbstractArray.h>
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173 | #include <vtkImageData.h>
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174 | #include <vtkPointData.h>
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175 | #include <vtkSmartPointer.h>
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176 | #include <vtkXMLImageDataWriter.h>
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177 | ],
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178 | [
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179 | vtkSmartPointer<vtkImageData> image = vtkSmartPointer<vtkImageData>::New();
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180 | ])
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181 | ], [vtkLinkVersion="OK"])
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182 | fi
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183 |
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184 | dnl Execute $2 if version is ok, otherwise execute $3 {{{
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185 | if test "$vtkLinkVersion" = "OK"; then
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186 | AC_MSG_RESULT([yes])
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187 | $2
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188 | break
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189 | else
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190 | AC_MSG_RESULT([no])
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191 | $3
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192 | fi
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193 | dnl unset VTK_LDFLAGS
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194 | VTK_LDFLAGS=
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195 | dnl restore all flags without VTK values
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196 | CFLAGS=$OLD_CFLAGS
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197 | CXXFLAGS=$OLD_CXXFLAGS
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198 | LDFLAGS=$OLD_LDFLAGS
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199 | LIBS=$OLD_LIBS
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200 | done
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201 | fi
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202 | fi
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203 | dnl }}}
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204 | dnl
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205 | fi
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206 | ])# AM_PATH_VTK
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207 | dnl
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208 | dnl vim: foldmethod=marker foldlevel=1 ts=2 sw=2
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