Well, not quite. Perhaps in this case it cannot do much harm, but I have experience otherwise for other programs. In those cases there was usually also a warning about a missing library or function but the program compiled and did run. However, there was a major issue with the programs and a big loss of data as a result... A warning is not always a warning.
In this particular case I totally agree with you, it is not important and indeed there are almost always warnings. However, unless you are familiar with the warnings, investigation should be done.
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