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102 lines
3.5 KiB
102 lines
3.5 KiB
11 years ago
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A short-hand signature is:
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.. parsed-literal::
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|FIND_XXX| (<VAR> name1 [path1 path2 ...])
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The general signature is:
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.. parsed-literal::
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|FIND_XXX| (
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<VAR>
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name | |NAMES|
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[HINTS path1 [path2 ... ENV var]]
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[PATHS path1 [path2 ... ENV var]]
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[PATH_SUFFIXES suffix1 [suffix2 ...]]
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[DOC "cache documentation string"]
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[NO_DEFAULT_PATH]
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[NO_CMAKE_ENVIRONMENT_PATH]
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[NO_CMAKE_PATH]
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[NO_SYSTEM_ENVIRONMENT_PATH]
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[NO_CMAKE_SYSTEM_PATH]
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[CMAKE_FIND_ROOT_PATH_BOTH |
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ONLY_CMAKE_FIND_ROOT_PATH |
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NO_CMAKE_FIND_ROOT_PATH]
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)
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This command is used to find a |SEARCH_XXX_DESC|.
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A cache entry named by ``<VAR>`` is created to store the result
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of this command.
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If the |SEARCH_XXX| is found the result is stored in the variable
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and the search will not be repeated unless the variable is cleared.
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If nothing is found, the result will be
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``<VAR>-NOTFOUND``, and the search will be attempted again the
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next time |FIND_XXX| is invoked with the same variable.
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The name of the |SEARCH_XXX| that
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is searched for is specified by the names listed
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after the NAMES argument. Additional search locations
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can be specified after the PATHS argument. If ENV var is
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found in the HINTS or PATHS section the environment variable var
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will be read and converted from a system environment variable to
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a cmake style list of paths. For example ENV PATH would be a way
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to list the system path variable. The argument
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after DOC will be used for the documentation string in
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the cache.
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PATH_SUFFIXES specifies additional subdirectories to check below
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each search path.
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If NO_DEFAULT_PATH is specified, then no additional paths are
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added to the search.
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If NO_DEFAULT_PATH is not specified, the search process is as follows:
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.. |CMAKE_PREFIX_PATH_XXX_SUBDIR| replace::
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<prefix>/|XXX_SUBDIR| for each <prefix> in CMAKE_PREFIX_PATH
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.. |CMAKE_SYSTEM_PREFIX_PATH_XXX_SUBDIR| replace::
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<prefix>/|XXX_SUBDIR| for each <prefix> in CMAKE_SYSTEM_PREFIX_PATH
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1. Search paths specified in cmake-specific cache variables.
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These are intended to be used on the command line with a -DVAR=value.
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This can be skipped if NO_CMAKE_PATH is passed.
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* |CMAKE_PREFIX_PATH_XXX|
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* |CMAKE_XXX_PATH|
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* |CMAKE_XXX_MAC_PATH|
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2. Search paths specified in cmake-specific environment variables.
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These are intended to be set in the user's shell configuration.
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This can be skipped if NO_CMAKE_ENVIRONMENT_PATH is passed.
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* |CMAKE_PREFIX_PATH_XXX|
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* |CMAKE_XXX_PATH|
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* |CMAKE_XXX_MAC_PATH|
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3. Search the paths specified by the HINTS option.
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These should be paths computed by system introspection, such as a
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hint provided by the location of another item already found.
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Hard-coded guesses should be specified with the PATHS option.
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4. Search the standard system environment variables.
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This can be skipped if NO_SYSTEM_ENVIRONMENT_PATH is an argument.
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* |SYSTEM_ENVIRONMENT_PATH_XXX|
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5. Search cmake variables defined in the Platform files
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for the current system. This can be skipped if NO_CMAKE_SYSTEM_PATH
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is passed.
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* |CMAKE_SYSTEM_PREFIX_PATH_XXX|
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* |CMAKE_SYSTEM_XXX_PATH|
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* |CMAKE_SYSTEM_XXX_MAC_PATH|
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6. Search the paths specified by the PATHS option
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or in the short-hand version of the command.
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These are typically hard-coded guesses.
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.. |FIND_ARGS_XXX| replace:: <VAR> NAMES name
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.. include:: FIND_XXX_MAC.txt
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.. include:: FIND_XXX_ROOT.txt
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.. include:: FIND_XXX_ORDER.txt
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