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What is this: Could NOT find Perl (missing: PERL_EXECUTABLE)?

Posted: Sun Dec 20, 2020 11:59 pm
by bonmotwang
Just curious what does this mean?
My projects compile OK, but always wanted to know why the compiler is looking for Perl.
Thanks.

Re: What is this: Could NOT find Perl (missing: PERL_EXECUTABLE)?

Posted: Mon Dec 21, 2020 12:07 am
by ESP_Angus
Hi bonmotwang,

ESP-IDF build system uses the mbedTLS library's own CMakelists.txt file to build the library, and it prints this warning when it runs.

I'm not certain what Perl is used for in mbedTLS (maybe somewhere in the test code?) but it's not needed at all to build ESP-IDF.

Sorry for the unecessary confusion caused by the warning.

Angus