How to install PackageCompiler

General Usage
1

I want to install the PackageCompiler, so that I can execute juliac.jl -vae --compile=all hello.jl.

Here is how I have done it:

julia> using Pkg

julia> Pkg.add("PackageCompiler")

Here is a simple script called hello.jl:

module Hello

Base.@ccallable function julia_main(ARGS::Vector{String})::Cint
    println("hello, world")
    @show sin(0.0)
    return 0
end

end

In order to compile it, I use:

julia ~/.julia/packages/PackageCompiler/oT98U/juliac.jl -vae --compile=all hello.jl

This creates an executable that can be executed as follows:

$ ./builddir/hello
hello, world
sin(0.0) = 0.0

So everything seems to work.

But is there a better way to call the juliac.jl? The README for PackageCompiler says I should be able to run it with just juliac.jl -h. As you can see, I have to use julia ~/.julia/packages/PackageCompiler/oT98U/juliac.jl -h which seems ugly to me.

2

I think not. But you can always copy the juliac.jl file to another location which is “better”. If you choose your home directory, then you will only need to execute julia ~/juliac.jl ...

EDIT: Much better than copying is to create a symbolic link. That way, you will have the new versions when you update the package.

1 Like
3

OT but no, because the new version of the package will not be located in the same folder.

4

Oh… then, no symlink :smile:

5

just run is O.K. for me

using PackageCompiler
build_executable("hello.jl")
6

This is no longer possible? juliac.jl is not available right now, it’s it?

7

The package was rewritten from scratch so instructions from before Feb 2020 are no longer valid. See the current docs.