Another precompilation failure

[timholy]

I don't have time to look into it this morning, but for future reference: with v0.3.0-rc1, precompiling Gtk (and nothing else) yields this on the first pass after a make clean && make:

...
pkg.jl
graphics.jl
profile.jl
precompile.jl
fatal: error thrown and no exception handler available.
ErrorException("Task cannot be serialized")
make[1]: *** [/home/tim/src/julia/usr/lib/julia/sys0.o] Error 1
make: *** [release] Error 2

[vtjnash]

this is another problem caused by switching the task loop (if you are on master)

[vtjnash]

if nothing else, i could just tell users to start calling Gtk.gtk_main() like any other normal gtk app. the problematic code is really pretty now:

https://github.com/JuliaLang/Gtk.jl/blob/1827d6a122707eedee0cf1bcbed539598c68df6e/src/events.jl#L21

[timholy]

Sure, although the idea of not calling __init__ when building the system image seems pretty reasonable to me. But I'm fine with whatever.

[vtjnash]

Fixed in Julia 0.3

[tknopp]

I think having the user call Gtk.gtk_main() would be a good move. Might it be possible to do this automatically when being in the REPL?

[vtjnash]

Yes, that's the direction I'm headed: I could do it automatically (in a task) if isinteractive()==true, which I think gives the desired behavior

It also means that gtk_main would block (in scripts) so you could use it at the bottom as the blocking mainloop instead of wait()

[tknopp]

+1 Yes lets please do it this way!