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| -rw-r--r-- | Modules/FindAndImportCMakeProject.cmake | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/Modules/FindAndImportCMakeProject.cmake b/Modules/FindAndImportCMakeProject.cmake new file mode 100644 index 0000000..ac540b0 --- /dev/null +++ b/Modules/FindAndImportCMakeProject.cmake @@ -0,0 +1,76 @@ +# FIND_AND_IMPORT_CMAKE_PROJECT can be used by projects to find other +# CMake projects. +# +# For example, the author of library FOO would include a file called +# FOOConfig.cmake in the project's distribution. Usually such a file +# would be configured and installed by FOO's CMake code into a +# directory such as PREFIX/lib/foo. +# +# The author of application BAR that uses FOO would include the +# following lines in BAR's CMake code: +# +# INCLUDE("${CMAKE_ROOT}/Modules/FindAndImportCMakeProject.cmake") +# FIND_AND_IMPORT_CMAKE_PROJECT(FOO_DIR FOOConfig.cmake lib/foo) +# +# When CMake is run to build BAR, FOO_DIR will be the only +# CMakeCache.txt entry that is needed for FOO. When FOO_DIR has been +# set correctly, FOOConfig.cmake will automatically be included to +# provide whatever settings are needed to use FOO. +# + +MACRO(FIND_AND_IMPORT_CMAKE_PROJECT dir_var config_file rel_path) + IF(NOT ${dir_var}) + # Get the system search path as a list. + IF(UNIX) + STRING(REGEX MATCHALL "[^:]+" ${dir_var}_SEARCH1 "$ENV{PATH}") + ELSE(UNIX) + STRING(REGEX REPLACE "\\\\" "/" ${dir_var}_SEARCH1 "$ENV{PATH}") + ENDIF(UNIX) + STRING(REGEX REPLACE "/;" ";" ${dir_var}_SEARCH2 "${${dir_var}_SEARCH1}") + + # Construct a set of paths relative to the system search path. + SET(${dir_var}_SEARCH ${${dir_var}_SEARCH_PATH}) + FOREACH(dir ${${dir_var}_SEARCH2}) + SET(${dir_var}_SEARCH ${${dir_var}_SEARCH} "${dir}/../${rel_path}") + ENDFOREACH(dir) + + # Look for the configuration file. + FIND_PATH(${dir_var} ${config_file} + # Search user paths and relative to system search path. + ${${dir_var}_SEARCH} + + # Look in standard UNIX install locations. + "/usr/local/${rel_path}" + "/usr/${rel_path}" + + # Read from the CMakeSetup registry entries. It is likely that + # the project will have been recently built. + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild1]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild2]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild3]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild4]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild5]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild6]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild7]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild8]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild9]" + "[HKEY_CURRENT_USER\\Software\\Kitware\\CMakeSetup\\Settings\\StartPath;WhereBuild10]" + + # Help the user find it if we cannot. + DOC "The directory containing ${config_file}." + ) + ENDIF(NOT ${dir_var}) + + # If the configuration file was found, load it. + IF(${dir_var}) + IF(EXISTS "${${dir_var}}/${config_file}") + # We found the configuration file. Load the settings from it. + INCLUDE("${${dir_var}}/${config_file}") + ELSE(EXISTS "${${dir_var}}/${config_file}") + IF(NOT ${dir_var}_NO_COMPLAIN) + MESSAGE(SEND_ERROR "${dir_var} has been set to a directory " + "that does not contain ${config_file}.") + ENDIF(NOT ${dir_var}_NO_COMPLAIN) + ENDIF(EXISTS "${${dir_var}}/${config_file}") + ENDIF(${dir_var}) +ENDMACRO(FIND_AND_IMPORT_CMAKE_PROJECT) |