| 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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