nx_tzdb: add another safety assertion
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@ -11,6 +11,10 @@ execute_process(
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WORKING_DIRECTORY ${ZONE_PATH}
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WORKING_DIRECTORY ${ZONE_PATH}
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OUTPUT_VARIABLE FILE_LIST)
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OUTPUT_VARIABLE FILE_LIST)
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if (NOT FILE_LIST)
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message(FATAL_ERROR "No timezone files found in directory ${ZONE_PATH}, did the download fail?")
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endif()
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set(DIRECTORY_NAME ${HEADER_NAME})
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set(DIRECTORY_NAME ${HEADER_NAME})
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set(FILE_DATA "")
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set(FILE_DATA "")
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