Re: gnat for alpha linux (follow up)

[Stephen Leake <stephen.a.leake.1@gsfc.nasa.gov>]

"Ian S. Nelson" <nelsonis@earthlink.net> writes:

> Okay, I've got the cross compiler building stuff but it didn't/doesn't
> build libgnat.  Any tips on building that?  

Here are the steps I use to build a gnat cross:

    cd ~/ST5/Tools
    mkdir build-mips-rtems-ada
    cd build-mips-rtems-ada
    ../gcc-2.8.1/configure --prefix=/home/stephe/ST5/Ada_Install --target=mips-rtems --with-gnu-as --with-gnu-ld --enable-languages=c,ada

    ~/ST5/Tools/build-mips-rtems-ada/Makefile :
        make CFLAGS="-O2 -g" all
            # CFLAGS drops -Wall from default; lots of bogus warnings in Ada compiler

        make CFLAGS="-O2" GNATLIBCFLAGS="-O2 -I/home/stephe/ST5/C_Tools/mips-rtems/include" gnatlib
            # extra -I is for sys/types.h etc
        make CFLAGS="-O2" cross-gnattools
        make CFLAGS="-O2" ada.all.cross

        make install

This list was derived partly from help from ACT, partly from black
magic. You are entitled to wear a wizard's cap after you get this
working :).

> I want to build a simple helloworld.adb before I start trying to
> build a whole compiler.

I'm not sure there's much difference. Assuming you use Ada.Text_IO in
helloworld, that's pretty much the whole compiler and run-time
library; it doesn't come in smaller pieces.

-- 
-- Stephe