[Info-vax] GCC for VMS, was: Re: fortran compiler roadmap?

[Simon Clubley]

On 2013-04-24, Craig A. Berry <craigberry at mac.com.invalid> wrote:
> In article <kl823c$8u1$1 at dont-email.me>,
>  Simon Clubley <clubley at remove_me.eisner.decus.org-Earth.UFP> wrote:
>
>> Success: I now have gcc built as a cross compiler on Linux and it is
>> outputting simple executable which run on VMS:
>> 
>> $ sh sys/noproc
>> OpenVMS V8.3  on node EISNER  24-APR-2013 02:38:50.85  Uptime  36 11:11:53
>> $ r hello.exe
>> Hello world
>
> Very cool.  How different is cross compiling a simple program from 
> cross compiling the compiler itself?
>

Thanks.

It's kind of like the difference between building a model aircraft and
building a 747. :-)

In principle, you follow the same build process for both types of aircraft;
it's just that building one of the latter involves a lot more steps and many
more prerequisites. :-)

There's also many more things which can go wrong when you try to build one
of the latter...

Simon.

-- 
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Microsoft: Bringing you 1980s technology to a 21st century world