MacroOptionalAddSubdirectory.cmake (1315B)
1 # - MACRO_OPTIONAL_ADD_SUBDIRECTORY() combines add_subdirectory() with an option() 2 # MACRO_OPTIONAL_ADD_SUBDIRECTORY( <dir> ) 3 # If you use MACRO_OPTIONAL_ADD_SUBDIRECTORY() instead of add_subdirectory(), 4 # this will have two effects 5 # 1 - CMake will not complain if the directory doesn't exist 6 # This makes sense if you want to distribute just one of the subdirs 7 # in a source package, e.g. just one of the subdirs in kdeextragear. 8 # 2 - If the directory exists, it will offer an option to skip the 9 # subdirectory. 10 # This is useful if you want to compile only a subset of all 11 # directories. 12 13 # Copyright (c) 2007, Alexander Neundorf, <neundorf@kde.org> 14 # 15 # Redistribution and use is allowed according to the terms of the BSD license. 16 # For details see the accompanying COPYING-CMAKE-SCRIPTS file. 17 18 19 macro (MACRO_OPTIONAL_ADD_SUBDIRECTORY _dir ) 20 get_filename_component(_fullPath ${_dir} ABSOLUTE) 21 if(EXISTS ${_fullPath}) 22 if(${ARGC} EQUAL 2) 23 option(BUILD_${_dir} "Build directory ${_dir}" ${ARGV1}) 24 else(${ARGC} EQUAL 2) 25 option(BUILD_${_dir} "Build directory ${_dir}" TRUE) 26 endif(${ARGC} EQUAL 2) 27 if(BUILD_${_dir}) 28 add_subdirectory(${_dir}) 29 endif(BUILD_${_dir}) 30 endif(EXISTS ${_fullPath}) 31 endmacro (MACRO_OPTIONAL_ADD_SUBDIRECTORY)