lib/fetch-{libc++,newlib}: exit on error #477
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This helps diagnose issues when one or more of the tools that the script requires are not installed.
In my case, I was working on a system that did not have
unzip
installed. This error message was hidden in between a lot of other log messages, and the error was masked by a generic "can't find this header" message.This also removes the
let
bindings. The bashlet
commands returns exit code 1 when assigning the value0
to a variable, which is ... 100% what you want, just great behavior, and definitely did not cost me another 10 minutes to debug.