RE: [avr-libc-dev] headers only / bootstrapping an avr toolchain

[Weddington, Eric]

> -----Original Message-----
> From: 
> address@hidden 
> [mailto:address@hidden
> org] On Behalf Of Joerg Wunsch
> Sent: Monday, November 03, 2008 12:17 PM
> To: address@hidden
> Subject: Re: [avr-libc-dev] headers only / bootstrapping an 
> avr toolchain
> 
> As Rick Altherr wrote:
> 
> > What languages are you asking avr-gcc to build?  I only build c and
> > c++.  It may require the headers if you try to build java, fortran,
> > etc.
> 
> I don't think any of these languages is actually supported for the AVR
> at all.  The only language besides C and C++ that is at least
> partially supported is Ada; I'm not sure whether building it for Ada
> requires a prior installed avr-libc.

Objective C (objc) can be built for the AVR (I do it regularly now). But no one 
has attempted to even use it. Ada can be built for the AVR, and has a support 
library and patches with the AVR-Ada project (avr-ada on SourceForge). However, 
you need to have a native Ada compiler of the same version in order to build it.

For Fortran to be built, the AVR port needs to have 64-bit double support. 
Currently it only supports 32-bit doubles. We (the avr-libc developers) would 
like to support 64-bit doubles at some point in time.

It's been a while since I tried to build the Java front-end for the AVR. I know 
that it didn't succeed at the time, but I can't remember what the failures 
were. I know that none of the support libraries can be built for the AVR. 
However, in theory, a Java compiler should be able to be built for the AVR 
because the GCC Java compiler can also compile Java straight to native code. 
This would remove the need to have a JVM built for the AVR, which would 
probably be overkill.