Re: ANN: Kickstarter for beginning work on a new open-source Compiler

["Randy Brukardt" <randy@rrsoftware.com>]

"Jeffrey Carter" <spam.jrcarter.not@spam.not.acm.org> wrote in message 
news:lgj90b$kdo$1@dont-email.me...
> On 03/21/2014 10:48 PM, J-P. Rosen wrote:
>>
>> FYI, Gnat was always written in Ada, bootstrapped from the Alsys 
>> compiler.
>
> IIRC, the Alsys compiler was also written in Ada, though initially an 
> Ada-to-PL1 translator was used until the compiler could compile itself.

Probably no one cares, but Janus/Ada was originally written in Pascal, and 
translated by our PasTran product into Ada even before it was initially 
released. (The runtime licensing of the Pascal compiler was murky, so we 
avoided the problem by using our own.) Don't recall precisely when it was 
bootstrapped (as with all of those sorts of milestones, they don't really 
happen at a point, it's rather than matter of translating it, fixing things 
to get it to compile, fixing more things to get it to run at all, and 
finally fixing the things that cause problems on some tests -- it's usually 
a relief when you get a clean test run, not such much excitement). But it 
had to be prior to November 1981, so the Pascal version was only around a 
year or so before it was translated and discarded. It's been in Ada the 32+ 
years since.

                                   Randy.