<div dir="ltr">I agree completely. I eventually found out how to disable timestamps in the build, but this should definitely be the default.</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, May 3, 2016 at 4:57 PM, Chris Bieneman via llvm-dev <span dir="ltr"><<a href="mailto:llvm-dev@lists.llvm.org" target="_blank">llvm-dev@lists.llvm.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello LLVM-Dev,<br>
<br>
Today if a user checks out LLVM, configures with no options specified, and builds the result is non-deterministic. Meaning if you clean and build again the binaries are not identical. This impacts all target platforms equally and is caused by the default value of LLVM_ENABLE_TIMESTAMPS being On.<br>
<br>
I believe this is incorrect behavior, and I’m curious what the wider community thinks.<br>
<br>
It is my belief that the default LLVM configuration (meaning no options specified) should be deterministic, and that any option in our build/configuration system that can impact determinism should be disabled by default.<br>
<br>
I would like to hold this as a central requirement for build system changes.<br>
<br>
Thoughts?<br>
-Chris<br>
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