1 # File containing various utilities
3 # Converts a CMake list to a string containing elements separated by spaces
4 function(TO_LIST_SPACES _LIST_NAME OUTPUT_VAR)
6 foreach(ITEM ${${_LIST_NAME}})
7 set(NEW_LIST_SPACE "${NEW_LIST_SPACE} ${ITEM}")
9 string(STRIP ${NEW_LIST_SPACE} NEW_LIST_SPACE)
10 set(${OUTPUT_VAR} "${NEW_LIST_SPACE}" PARENT_SCOPE)
13 # Appends a lis of item to a string which is a space-separated list, if they don't already exist.
14 function(LIST_SPACES_APPEND_ONCE LIST_NAME)
15 string(REPLACE " " ";" _LIST ${${LIST_NAME}})
16 list(APPEND _LIST ${ARGN})
17 list(REMOVE_DUPLICATES _LIST)
18 to_list_spaces(_LIST NEW_LIST_SPACE)
19 set(${LIST_NAME} "${NEW_LIST_SPACE}" PARENT_SCOPE)
22 # Convinience function that does the same as LIST(FIND ...) but with a TRUE/FALSE return value.
23 # Ex: IN_STR_LIST(MY_LIST "Searched item" WAS_FOUND)
24 function(IN_STR_LIST LIST_NAME ITEM_SEARCHED RETVAL)
25 list(FIND ${LIST_NAME} ${ITEM_SEARCHED} FIND_POS)
26 if(${FIND_POS} EQUAL -1)
27 set(${RETVAL} FALSE PARENT_SCOPE)
29 set(${RETVAL} TRUE PARENT_SCOPE)
33 # Returns a list of arguments that evaluate to true
34 function(collect_true output_var output_count_var)
36 foreach(option_var IN LISTS ARGN)
38 list(APPEND ${output_var} ${option_var})
41 set(${output_var} ${${output_var}} PARENT_SCOPE)
42 list(LENGTH ${output_var} ${output_count_var})
43 set(${output_count_var} ${${output_count_var}} PARENT_SCOPE)