Ubuntu 18.10 / 19.04: @opam/ocamlfind@opam:1.8.1 build failed about revery HOT 5 CLOSED

Its possible we need to update the build dependencies again. I did a round of updates to the Fedora ones a few weeks ago, as someone was hitting issues there, but it may be that the Ubuntu ones are now also out of date (and we are being saved by the pre-installed deps in the CI).

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    Detecting compiler arguments: (extractor built) FAILED (see the file ocargs.log for details)

Can you post the content of ocargs.log mentioned?

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I just came across this as well. Most likely it's caused by this bug: esy/esy#1171

There's a couple ways to work around this:

1. Pin the OCaml dependency to 4.10.0
2. Install and use @esy-nightly/esy instead. Unfortunately that will trigger another bug in esy-harfbuzz, being addressed here: revery-ui/esy-harfbuzz#6

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@marcinkoziej Reran on a new VM, this is the only ocargs.log file I could find on the system afterwards:

.esy/3/b/opam__s__ocamlfind-opam__c__1.8.1-c62bd863/ocargs.log

ocamlc -o extract_args str.cma extract_args.ml
tools/extract_args/extract_args: 2: tools/extract_args/extract_args: Syntax error: word unexpected (expecting ")")

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Closing due to age.

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