diff options
Diffstat (limited to 'Modules/FindVTK.cmake')
| -rw-r--r-- | Modules/FindVTK.cmake | 109 |
1 files changed, 48 insertions, 61 deletions
diff --git a/Modules/FindVTK.cmake b/Modules/FindVTK.cmake index fce10bc08f..69e18742e5 100644 --- a/Modules/FindVTK.cmake +++ b/Modules/FindVTK.cmake @@ -40,32 +40,41 @@ # (To distributed this file outside of CMake, substitute the full # License text for the above reference.) +# Assume not found. +SET(VTK_FOUND 0) + +# VTK 4.0 did not provide VTKConfig.cmake. +IF("${VTK_FIND_VERSION}" VERSION_LESS 4.1) + SET(_VTK_40_ALLOW 1) + IF(VTK_FIND_VERSION) + SET(_VTK_40_ONLY 1) + ENDIF() +ENDIF() + # Construct consitent error messages for use below. -SET(VTK_DIR_DESCRIPTION "directory containing VTKConfig.cmake. This is either the root of the build tree, or PREFIX/lib/vtk for an installation. For VTK 4.0, this is the location of UseVTK.cmake. This is either the root of the build tree or PREFIX/include/vtk for an installation.") +SET(VTK_DIR_DESCRIPTION "directory containing VTKConfig.cmake. This is either the root of the build tree, or PREFIX/lib/vtk for an installation.") +IF(_VTK_40_ALLOW) + SET(VTK_DIR_DESCRIPTION "${VTK_DIR_DESCRIPTION} For VTK 4.0, this is the location of UseVTK.cmake. This is either the root of the build tree or PREFIX/include/vtk for an installation.") +ENDIF() SET(VTK_DIR_MESSAGE "VTK not found. Set the VTK_DIR cmake cache entry to the ${VTK_DIR_DESCRIPTION}") -# Search only if the location is not already known. -IF(NOT VTK_DIR) - # Get the system search path as a list. - IF(UNIX) - STRING(REGEX MATCHALL "[^:]+" VTK_DIR_SEARCH1 "$ENV{PATH}") - ELSE(UNIX) - STRING(REGEX REPLACE "\\\\" "/" VTK_DIR_SEARCH1 "$ENV{PATH}") - ENDIF(UNIX) - STRING(REGEX REPLACE "/;" ";" VTK_DIR_SEARCH2 "${VTK_DIR_SEARCH1}") +# Check whether VTK 4.0 has already been found. +IF(_VTK_40_ALLOW AND VTK_DIR) + IF(EXISTS ${VTK_DIR}/UseVTK.cmake AND NOT EXISTS ${VTK_DIR}/VTKConfig.cmake) + SET(VTK_FOUND 1) + INCLUDE(UseVTKConfig40) # No VTKConfig; load VTK 4.0 settings. + ENDIF() +ENDIF() - # Construct a set of paths relative to the system search path. - SET(VTK_DIR_SEARCH "") - FOREACH(dir ${VTK_DIR_SEARCH2}) - SET(VTK_DIR_SEARCH ${VTK_DIR_SEARCH} - ${dir}/../lib/vtk-5.4 - ${dir}/../lib/vtk-5.2 - ${dir}/../lib/vtk-5.1 - ${dir}/../lib/vtk-5.0 - ${dir}/../lib/vtk - ) - ENDFOREACH(dir) +# Use the Config mode of the find_package() command to find VTKConfig. +# If this succeeds (possibly because VTK_DIR is already set), the +# command will have already loaded VTKConfig.cmake and set VTK_FOUND. +IF(NOT _VTK_40_ONLY AND NOT VTK_FOUND) + FIND_PACKAGE(VTK QUIET NO_MODULE) +ENDIF() +# Special search for VTK 4.0. +IF(_VTK_40_ALLOW AND NOT VTK_DIR) # Old scripts may set these directories in the CMakeCache.txt file. # They can tell us where to find VTKConfig.cmake. SET(VTK_DIR_SEARCH_LEGACY "") @@ -77,22 +86,16 @@ IF(NOT VTK_DIR) ${VTK_INSTALL_PATH}/lib/vtk) ENDIF(VTK_INSTALL_PATH AND USE_INSTALLED_VTK) - # - # Look for an installation or build tree. - # - FIND_PATH(VTK_DIR UseVTK.cmake - # Support legacy cache files. - ${VTK_DIR_SEARCH_LEGACY} - - # Look for an environment variable VTK_DIR. - $ENV{VTK_DIR} + # Look for UseVTK.cmake in build trees or under <prefix>/include/vtk. + FIND_PATH(VTK_DIR + NAMES UseVTK.cmake + PATH_SUFFIXES vtk-4.0 vtk + HINTS $ENV{VTK_DIR} - # Look in places relative to the system executable search path. - ${VTK_DIR_SEARCH} + PATHS - # Look in standard UNIX install locations. - /usr/local/lib/vtk - /usr/lib/vtk + # Support legacy cache files. + ${VTK_DIR_SEARCH_LEGACY} # Read from the CMakeSetup registry entries. It is likely that # VTK will have been recently built. @@ -109,34 +112,18 @@ IF(NOT VTK_DIR) # Help the user find it if we cannot. DOC "The ${VTK_DIR_DESCRIPTION}" - ) -ENDIF(NOT VTK_DIR) - -# If VTK was found, load the configuration file to get the rest of the -# settings. -IF(VTK_DIR) - # Make sure the VTKConfig.cmake file exists in the directory provided. - IF(EXISTS ${VTK_DIR}/VTKConfig.cmake) - - # We found VTK. Load the settings. - SET(VTK_FOUND 1) - INCLUDE(${VTK_DIR}/VTKConfig.cmake) + ) - ELSE(EXISTS ${VTK_DIR}/VTKConfig.cmake) - IF(EXISTS ${VTK_DIR}/UseVTK.cmake) - # We found VTK 4.0 (UseVTK.cmake exists, but not VTKConfig.cmake). + IF(VTK_DIR) + IF(EXISTS ${VTK_DIR}/UseVTK.cmake AND NOT EXISTS ${VTK_DIR}/VTKConfig.cmake) SET(VTK_FOUND 1) - # Load settings for VTK 4.0. - INCLUDE(UseVTKConfig40) - ELSE(EXISTS ${VTK_DIR}/UseVTK.cmake) - # We did not find VTK. - SET(VTK_FOUND 0) - ENDIF(EXISTS ${VTK_DIR}/UseVTK.cmake) - ENDIF(EXISTS ${VTK_DIR}/VTKConfig.cmake) -ELSE(VTK_DIR) - # We did not find VTK. - SET(VTK_FOUND 0) -ENDIF(VTK_DIR) + INCLUDE(UseVTKConfig40) # No VTKConfig; load VTK 4.0 settings. + ELSE() + # We found the wrong version. Pretend we did not find it. + SET(VTK_DIR "VTK_DIR-NOTFOUND" CACHE PATH "The ${VTK_DIR_DESCRIPTION}" FORCE) + ENDIF() + ENDIF() +ENDIF() #----------------------------------------------------------------------------- IF(VTK_FOUND) |