companion_cube changed the topic of #ocaml to: Discussions about the OCaml programming language | http://www.ocaml.org | OCaml 4.05.0 release notes: https://caml.inria.fr/pub/distrib/ocaml-4.05/notes/Changes | Try OCaml in your browser: http://try.ocamlpro.com | Public channel logs at http://irclog.whitequark.org/ocaml
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<elecmat> hi
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<orbifx[m]> elecmat: hi
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<ShalokShalom> i use 4.05.0-1 and when i use opam, do i get the following issues:
<ShalokShalom> The following actions failed
<ShalokShalom> ∗ install jbuilder 1.0+beta12
<ShalokShalom> ∗ install topkg 0.8.1
<ShalokShalom> ∗ install react 1.2.0
<ShalokShalom> their error messages contain always: 4.02.3
<kakadu_> eval `opam config env`
<ShalokShalom> 4.02.3
<ShalokShalom> hi kakadu :)
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<kakadu_> hey
<kakadu_> if it says 4.02.3 then you are not using 4.05
<ShalokShalom> ➜ ~ pacman -Q ocaml
<ShalokShalom> ocaml 4.05.0-1
<ShalokShalom> hnn, seems like i installed opam by hand
<kakadu_> opam switch 4.05.0+flambda
<ShalokShalom> i thought opam is included
<ShalokShalom> thats clear now
<ShalokShalom> Processing: [4.05.0+flambda: make world]
<ShalokShalom> thy
<ShalokShalom> flambda?
<kakadu_> it is more-optimizations-compiler-switch
<ShalokShalom> ah i see
<ShalokShalom> optimization into which direction?
<kakadu_> speed
<ShalokShalom> so, you mean like a -release trigger?
<kakadu_> of generated code
<ShalokShalom> ah, i see
<ShalokShalom> thy
<ShalokShalom> seems to build now
<ShalokShalom> hnn, i build 1.2.2 and that comes with 4.02.3 by default?
<ShalokShalom> confusing
<kakadu_> not really
<kakadu_> maybe you was using old system compiler
<kakadu_> I'm not sure
<ShalokShalom> i am on a rolling distribution here
<ShalokShalom> gcc 6.4 here
<ShalokShalom> maybe related to my trials to install reason, since that one prefers 4.02 for Bucklescript..
<kakadu_> the issue is when you use system compiler to compile extra libraries the update of compiler breaks this libraries
<ShalokShalom> seems they assume nobody will use Reason for anything else..
<kakadu_> It's generally recommended to use compiler compiled by opam
<ShalokShalom> ok
<ShalokShalom> so always use opam
<kakadu_> Or do not upgrade system compiler
<ShalokShalom> ah i see
<ShalokShalom> which would mean to not update at all
<ShalokShalom> or rebuild everything always again
<ShalokShalom> so, opam
<kakadu_> btw, Do you have some recommendations what should I use for web fonts?
<ShalokShalom> i prefer on my own device Oxygen, while i guess most others can dislike it
<ShalokShalom> Roboto?
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<kakadu_> -v option gives more info
<ShalokShalom> oko
<ShalokShalom> opam install merlin -v
<ShalokShalom> shows the same imho
<kakadu_> weird
<kakadu_> you can try consult stdout and stderr files
<ShalokShalom> they are empty
<kakadu_> have you done `opam update` recently?
<ShalokShalom> nope
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<kakadu_> you also can try to install failed packages by one
<kakadu_> `opam update` sometimes helps
<ShalokShalom> or yes, i did
<kakadu_> folks can publish a package update for recent compiler or something
<kakadu_> give me output of `opam install cppo -v`
<ShalokShalom> ➜ ~ opam install cppo -v fails as well
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<kakadu_> Oh
<kakadu_> crap
<kakadu_> I have had some issues with jbuilder where it was returning errno 127
<kakadu_> but it was only the office machine, at home it was OK
<kakadu_> and nobody could recreate this issue
<kakadu_> I'm not a big expert on jbuilder though
<ShalokShalom> ah i see
<ShalokShalom> so: recreated :D
<ShalokShalom> who is?
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<kakadu_> AFAIR only rgrinberg is hanging out in IRC
<kakadu_> rgrinberg: ^^
<kakadu_> As a temporary switch you can try what you want on 4.04
<kakadu_> Yeah, I know, that looks embarassing
<ShalokShalom> :)
<ShalokShalom> for me not
<ShalokShalom> for other newbies probably, yes
<ShalokShalom> a friend of mine told me, ;; is just important in REPL, is this correct?
<kakadu_> yep
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<ShalokShalom> fine
<ShalokShalom> because it looks a bit confusing in all these tutorials
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<rgrinberg> kakadu_: that issue sounds mysterious
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<kakadu_> rgrinberg: can you recommend ShalokShalom to check something ?
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<ShalokShalom> And i thought OCaml is mostly error free, once compiled?
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<kakadu_> ShalokShalom: I changed something. Have fonts become better?
<ShalokShalom> yep
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<ShalokShalom> what do you think is missing to use OCaml with QML in larger applications?
<ShalokShalom> QCaml :P
<kakadu_> QuteCaml :)
<ShalokShalom> ^-^
<ShalokShalom> there is still much lablqt stuff
<ShalokShalom> see in ctrl+f
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<ShalokShalom> how much covers your project yet?
<kakadu_> ShalokShalom: It's a tricky question because it is hard to evaluate
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<ShalokShalom> ok?
<kakadu_> I recreated some features that MOC proveds but orbifx[m] didn't use them and made everything work with QPropertyMap's
<kakadu_> provides*
<ShalokShalom> aha
<ShalokShalom> i simply like to import/use qml files
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<kakadu_> ANother complication is that QML is by iteslf very powerful and may be used without C++/OCaml
<kakadu_> At the moment I expect some complications with performance when you need to pass object by values between QML runtime and native code
<kakadu_> There is a specific macro for it (Q_GADGET) in MOC
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<kakadu_> I don't know how to use this feature from OCaml corrrectly
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<ShalokShalom> kakadu_: aha, ok
<ShalokShalom> do you already talk with the devs?
<kakadu_> devs of what?
<ShalokShalom> and you mean QML with JS is already very powerful?
<ShalokShalom> qt devs
<kakadu_> no, I didn't talk with Qt devs about Q_GADGETs
<ShalokShalom> QML is the only language I can imagine to write something in it, since it is so declarative
<ShalokShalom> i guess they can help you?
<kakadu_> maybe
<ShalokShalom> try :)
<ShalokShalom> you can compile QML also in C++
<ShalokShalom> including JavaScript
<kakadu_> Yeah, it will be ahead-of-time compilation
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<ShalokShalom> i would love to create a OCaml application with your QML connection
<ShalokShalom> i already ordered OCaml from the very beginning and hope it can open some knots in my mind
<ShalokShalom> thanks a lot for now :)
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<malina> hmm, and there I was just compiling conky wihtout moc
<malina> "p
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<ShalokShalom> kakadu_: is that QtQuick1 or 2 that you support?
<kakadu_> only 2
<ShalokShalom> thy
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