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 (a] 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) 32
