49 lines
1.9 KiB
CMake
49 lines
1.9 KiB
CMake
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# - MACRO_OPTIONAL_FIND_PACKAGE() combines FIND_PACKAGE() with an OPTION()
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# MACRO_OPTIONAL_FIND_PACKAGE( <name> [QUIT] )
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# This macro is a combination of OPTION() and FIND_PACKAGE(), it
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# works like FIND_PACKAGE(), but additionally it automatically creates
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# an option name WITH_<name>, which can be disabled via the cmake GUI.
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# or via -DWITH_<name>=OFF
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# The standard <name>_FOUND variables can be used in the same way
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# as when using the normal FIND_PACKAGE()
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# Copyright (c) 2006-2010 Alexander Neundorf, <neundorf@kde.org>
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#
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# Redistribution and use is allowed according to the terms of the BSD license.
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# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
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# This is just a helper macro to set a bunch of variables empty.
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# We don't know whether the package uses UPPERCASENAME or CamelCaseName, so we try both:
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macro(_MOFP_SET_EMPTY_IF_DEFINED _name _var)
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if(DEFINED ${_name}_${_var})
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set(${_name}_${_var} "")
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endif(DEFINED ${_name}_${_var})
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string(TOUPPER ${_name} _nameUpper)
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if(DEFINED ${_nameUpper}_${_var})
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set(${_nameUpper}_${_var} "")
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endif(DEFINED ${_nameUpper}_${_var})
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endmacro(_MOFP_SET_EMPTY_IF_DEFINED _package _var)
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macro (MACRO_OPTIONAL_FIND_PACKAGE _name _default)
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option(WITH_${_name} "Search for ${_name} package" ${_default})
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if (WITH_${_name})
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find_package(${_name} ${ARGN})
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else (WITH_${_name})
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string(TOUPPER ${_name} _nameUpper)
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set(${_name}_FOUND FALSE)
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set(${_nameUpper}_FOUND FALSE)
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_mofp_set_empty_if_defined(${_name} INCLUDE_DIRS)
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_mofp_set_empty_if_defined(${_name} INCLUDE_DIR)
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_mofp_set_empty_if_defined(${_name} INCLUDES)
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_mofp_set_empty_if_defined(${_name} LIBRARY)
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_mofp_set_empty_if_defined(${_name} LIBRARIES)
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_mofp_set_empty_if_defined(${_name} LIBS)
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_mofp_set_empty_if_defined(${_name} FLAGS)
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_mofp_set_empty_if_defined(${_name} DEFINITIONS)
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endif (WITH_${_name})
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endmacro (MACRO_OPTIONAL_FIND_PACKAGE)
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