improvements: make this library importable instead of forcing it to be the top level.

[james-lawrence]

still playing with the code, but think this should work closer to how go-gl/glfw works where you can just import and go.

• figure out a way of statically linking the flutter engine.
• remove main function and expose a top level package function that perform the same work.

been working on getting these changes to work running into issues with the shared library, which i haven't had a chance to track down. basically go is having trouble loading the library but isn't being clear on where its looking.

[pchampio]

Make a go library is intended. But, for now, I am focusing on making the proof of concept work on multiple platforms.
Regarding the static linking, this would be awesome, but sadly I don't think it's possible without having to compile the entire Flutter-Engine at the same time as a go library.

go is having trouble loading the library but isn't being clear on where its looking.

Could you be more specific? (If I can help).

[james-lawrence]

i'm working towards the library functionality, so I customized your code atm.

basically this

problem is the flutter shared library is nested in vendor.
I tried putting the same directory structure in my working directory but it failed.
i suspect I need to adjust the cgo directives to not contain the ${SRC} variables but havent gotten around to it yet and probably done for the day.

[james-lawrence]

biggest help would be finding where go does its shared library loading so I can debug where its looking, though I suspect its coming from a native library go calls out to.

[pchampio]

Go is loading the shared library on this line. The -rpath flag might be the cause.

Try to add the .so to your path with something like export LD_LIBRARY_PATH=$GOPATH/src/github.com/Drakirus/go-flutter-desktop-embedder/flutter/library/linux.

[james-lawrence]

oh I know where it was in repo, I was being very literal about trying to find out where go runtime attempts to do the loading.

basically getting this error:

error while loading shared libraries: libflutter_engine.so: cannot open shared object file: No such file or directory

and I can't find any of those strings in the go runtime =(

[pchampio]

And I am guessing that objdump -p go-flutter-desktop-embedder doesn't give you anything?

[james-lawrence]

havent dug that far yet. will dig more when I get back to it later tonight or next week.

[james-lawrence]

alright you were correct on rpath being the issue. removing $ORIGIN/ from it let the runtime find the library.

would you like a PR making the minor adjustments?