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1 # File containing various utilities
2
3 # Converts a CMake list to a string containing elements separated by spaces
4 function(TO_LIST_SPACES _LIST_NAME OUTPUT_VAR)
5   set(NEW_LIST_SPACE)
6   foreach(ITEM ${${_LIST_NAME}})
7     set(NEW_LIST_SPACE "${NEW_LIST_SPACE} ${ITEM}")
8   endforeach()
9   string(STRIP ${NEW_LIST_SPACE} NEW_LIST_SPACE)
10   set(${OUTPUT_VAR} "${NEW_LIST_SPACE}" PARENT_SCOPE)
11 endfunction()
12
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)
20 endfunction()
21
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(${RETVAL} FALSE PARENT_SCOPE)
28   else()
29     set(${RETVAL} TRUE PARENT_SCOPE)
30   endif()
31 endfunction()