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--- cmake/DownloadNlohmannJson.cmake.orig 2019-07-11 02:46:50 UTC
+++ cmake/DownloadNlohmannJson.cmake
@@ -37,6 +37,10 @@ function (_download_json_hpp)
execute_process(COMMAND "${CMAKE_COMMAND}" -E sleep
"${sleep_seconds}")
endif ()
+ if (EXISTS "${DEST}/json.hpp")
+ set(download_error_code 0)
+ break()
+ endif ()
file(DOWNLOAD "${JSON_URL}" "${DEST}/json.hpp" STATUS download_status)
list(GET download_status 0 download_error_code)
if (download_error_code EQUAL 0)
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