add additional modules to system image

[andrewning]

Is there a way I can some of my own packages to the custom system image?

[stevengj]

Duplicate of #310?

[andrewning]

I don't think it was a duplicate. #310 was a problem (perhaps a bug) in just building the system image that @tkf provided a workaround for. In this issue I was asking about whether there was a way to customize the system image that is built (adding additional packages). I figured out I could do it by modifying precompile.jl but it would be nice if there was a command line option to pass in a file rather than manually modify the package.

[tkf]

There is no easy way to do this at the moment. Maybe first create a system image for PyJulia, start julia-py command with this system image, and then use PackageCompiler to build a new system image with more Julia packages?