Simon Wright expounded in news:m2sk30rcc1.fsf@pushface.org:

> Warren <ve3wwg@gmail.com> writes:
> 
>> sjw expounded in news:d00563f7-b2a4-4a8c-8d53-adcbe72d62d8
>> @j9g2000yqn.googlegroups.com:
>>
>>> On Jul 30, 2:40 pm, Warren <ve3...@gmail.com> wrote:
>>> 
>>>> avr-gnatlink F:\cygwin\home\Warren\avr\testavr\testavr.ali
>>>> -mmcu=avr5 - 
>>> lgcc
>>>> -o F:\cygwin\home\Warren\avr\testavr\testavr
>>> 
>>> Just -lgcc on its own? you'd expect it to call up -lgnat & possibly
>>> - lgnarl. Hmm.
>>
>> Huh?  It does the -lgnat on its own.  Adding it 
>> didn't helped either. ;-)
> 
> Oh, I must have misunderstood. What happens if you call avr-gnatmake
> with -v -largs -Wl,-v? (to see what's going on). 

I did try the -v, but not after -largs. But the problem is now
solved now, by fixing the project file:

The key turned out to be the following 3 lines in the
project file (that I had differently):

  package Builder  renames AVR.Builder;
  package Compiler renames AVR.Compiler;
  package Binder   renames AVR.Binder;

Evidently, this sets things up a lot of things:

$ avr make
avr-gnatmake -XMCU=atmega328p -Ptestavr.gpr
avr-gcc -c --RTS=rts/avr5 \
  -gnatec=C:\WinAVR-20100110\lib\gnat\gnat.adc \
  -gdwarf-2 -gnatwp -gnatwu -gnatn -gnatp \
  -gnatVn -Os -gnatef -fverbose-asm -frename-registers \
  -mmcu=atmega328p -gnateDMCU=atmega328p \
  -fdata-sections -ffunction-sections -I- \
  -gnatA F:\home\wgay\avr\testavr\testavr.adb

The "avr" is just my wrapper script to fix the PATH 
in cygwin for the WinAVR tools.

Warren