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Merge branch 'feature/add_subdirectory_if_exists' into 'master'

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cmake: add subdirectory if exists utility

See merge request espressif/esp-idf!7302
This commit is contained in:
Angus Gratton 2020-02-19 07:54:27 +08:00
parent fe0df01b12 ab84c73244
commit dc63badbd2
1 changed files with 13 additions and 0 deletions
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13
tools/cmake/utilities.cmake
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@ -302,4 +302,17 @@ function(file_generate output)
set_property(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
APPEND PROPERTY ADDITIONAL_MAKE_CLEAN_FILES "${output}")
endfunction()
# add_subdirectory_if_exists
#
# Like add_subdirectory, but only proceeds if the given source directory exists.
function(add_subdirectory_if_exists source_dir)
get_filename_component(abs_dir "${source_dir}"
ABSOLUTE BASE_DIR "${CMAKE_CURRENT_LIST_DIR}")
if(EXISTS "${abs_dir}")
add_subdirectory("${source_dir}" ${ARGN})
else()
message(STATUS "Subdirectory '${abs_dir}' does not exist, skipped.")
endif()
endfunction()