a6a8170b50
The CONFIG keyword to find_package () was introduced in 2.8.8 while NO_MODULE works for the entire 2.8.x series.
123 lines
4.4 KiB
CMake
123 lines
4.4 KiB
CMake
# - Generic inclusion of packages
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#
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# Synopsis:
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#
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# find_and_append_package (name args)
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#
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# where
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#
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# name Name of the package, e.g. Boost
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# args Other arguments, e.g. COMPONENTS, REQUIRED, QUIET etc.
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#
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# This macro will append the list of standard variables found by the
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# package to this project's standard variables
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#
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########################################################################
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#
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# - Generic inclusion of a list of packages
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#
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# Synopsis:
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#
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# find_and_append_package_list (args)
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#
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# where
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#
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# args List of package strings. Each string must be quoted if
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# it contains more than one word.
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#
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# Example:
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#
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# find_and_append_package_list (
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# "Boost COMPONENTS filesystem REQUIRED"
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# SUPERLU
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# )
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include (Duplicates)
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# list of suffixes for all the project variables
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set (_opm_proj_vars
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LINKER_FLAGS
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LIBRARIES
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DEFINITIONS
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INCLUDE_DIRS
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LIBRARY_DIRS
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CONFIG_VARS
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)
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# ensure that they are at least the empty list after we're done
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foreach (name IN LISTS _opm_proj_vars)
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if (NOT DEFINED ${CMAKE_PROJECT_NAME}_${name})
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set (${CMAKE_PROJECT_NAME}_${name} "")
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endif (NOT DEFINED ${CMAKE_PROJECT_NAME}_${name})
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endforeach (name)
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# insert this boilerplate whenever we are going to find a new package
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macro (find_and_append_package_to prefix name)
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# if we have specified a directory, don't revert to searching the
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# system default paths afterwards
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string (TOUPPER "${name}" NAME)
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string (REPLACE "-" "_" NAME "${NAME}")
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# the documentation says that if *-config.cmake files are not found,
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# find_package will revert to doing a full search, but that is not
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# true, so unconditionally setting ${name}_DIR is not safe. however,
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# if the directory given to us contains a config file, then copy the
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# value over to this variable to switch to config mode (CMake will
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# always use config mode if *_DIR is defined)
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if (NOT DEFINED ${name}_DIR AND (DEFINED ${name}_ROOT OR DEFINED ${NAME}_ROOT))
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if (EXISTS ${${name}_ROOT}/${name}-config.cmake OR EXISTS ${${name}_ROOT}/${name}Config.cmake)
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set (${name}_DIR "${${name}_ROOT}")
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endif (EXISTS ${${name}_ROOT}/${name}-config.cmake OR EXISTS ${${name}_ROOT}/${name}Config.cmake)
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if (EXISTS ${${NAME}_ROOT}/${name}-config.cmake OR EXISTS ${${NAME}_ROOT}/${name}Config.cmake)
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set (${name}_DIR "${${NAME}_ROOT}")
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endif (EXISTS ${${NAME}_ROOT}/${name}-config.cmake OR EXISTS ${${NAME}_ROOT}/${name}Config.cmake)
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endif (NOT DEFINED ${name}_DIR AND (DEFINED ${name}_ROOT OR DEFINED ${NAME}_ROOT))
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# using config mode is better than using module (aka. find) mode
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# because then the package has already done all its probes and
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# stored them in the config file for us
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if (${name}_DIR)
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message (STATUS "Finding package ${name} using config mode")
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find_package (${name} ${ARGN} NO_MODULE PATHS ${${name}_DIR} NO_DEFAULT_PATH)
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else (${name}_DIR)
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message (STATUS "Finding package ${name} using module mode")
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find_package (${name} ${ARGN})
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endif (${name}_DIR)
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if (${name}_FOUND)
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foreach (var IN LISTS _opm_proj_vars)
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if (DEFINED ${name}_${var})
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list (APPEND ${prefix}_${var} ${${name}_${var}})
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# cleanup lists
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if ("${var}" STREQUAL "LIBRARIES")
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remove_duplicate_libraries (${prefix})
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else ("${var}" STREQUAL "LIBRARIES")
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list (REMOVE_DUPLICATES ${prefix}_${var})
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endif ("${var}" STREQUAL "LIBRARIES")
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endif (DEFINED ${name}_${var})
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endforeach (var)
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# some libraries only define xxx_FOUND and not a corresponding HAVE_xxx
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if (NOT DEFINED HAVE_${NAME})
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set (HAVE_${NAME} 1)
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endif (NOT DEFINED HAVE_${NAME})
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endif (${name}_FOUND)
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endmacro (find_and_append_package_to prefix name)
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# append to the list of variables associated with the project
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macro (find_and_append_package name)
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find_and_append_package_to (${CMAKE_PROJECT_NAME} ${name} ${ARGN})
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endmacro (find_and_append_package name)
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# find a list of dependencies, adding each one of them
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macro (find_and_append_package_list_to prefix)
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# setting and separating is necessary to work around apparent bugs
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# in CMake's parser (sic)
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set (_deps ${ARGN})
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foreach (_dep IN LISTS _deps)
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separate_arguments (_args UNIX_COMMAND ${_dep})
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find_and_append_package_to (${prefix} ${_args})
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endforeach (_dep)
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endmacro (find_and_append_package_list_to prefix)
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# convenience method to supply the project name as prefix
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macro (find_and_append_package_list)
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find_and_append_package_list_to (${CMAKE_PROJECT_NAME} ${ARGN})
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endmacro (find_and_append_package_list)
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