Re: Announcing a new build system for Myrddin code.

[Ori Bernstein <ori@xxxxxxxxxxxxxx>]

Huh, I seem to have managed to send a duplicate message. Oops. Sorry.

On Dec 12, 2014, at 10:33 AM, Ori Bernstein <ori@xxxxxxxxxxxxxx> wrote:

> Until recently, Myrddin was built using a buggy hack known as
> myrbuild.  It was only usable when hosted in a makefile, and would
> often miss dependencies that needed to be rebuilt, leading to
> confusing errors:
> 
>   main.myr:55: can't unify <old-type-version> and <new-type-version>
> 
> or 
> 
>   main.myr:55: duplicate definition of type <type-name>
> 
> So, I rewrote it. Now you have a buggy hack known as 'mild'.
> 
> My goals with the rewrite:
> 
>   - Solves the "missed dependency" bugs.
>   - Usable completely independently.
>   - Self hosted (ie, written in Myrddin).
>   - Automatically handles the usual make targets:
>       - build
>       - install
>       - clean
>       - subdirs
>       - test
>       - configure
>   - Simple input files.
>   - Easy to use.
>   - myrbuild compatible.
> 
> For now, the rewrite is called 'mbld', although the plan is to rename
> it to 'myrbuild' as soon as I am satisfied that it is stable. 
> 
> The rewrite doesn't replace myrbuild+makefiles yet, but it's close.
> The main missing features are testing and configuration, since I
> don't yet know how I want to handle them.
> 
> An example input file:
> 
>   bin hello = hello.myr goodbye.myr;
>   lib fuckyou = fuck.myr you.myr;
>   sub subdir list;
> 
> If you want build attributes, you pass them in short curlies
> after the target name, as below:
> 
>   bin kernel {ldscript = kernel.ld
>               runtime = none
>               noinst}
>       =
>       kernel.myr
>       loader.s
>   ;;
> 
> Right now, only 3 attributes are supported:
> 
>   noinst:             don't install the binary
>   runtime = rt:       use a custom runtime library
>   ldscript = script:  use a custom linker script
> 
> Others can be added pretty easily, as needed.
> 
> -- 
> Ori Bernstein <ori@xxxxxxxxxxxxxx>
>