Re: [avr-libc-dev] How attached are people to the implementation of rand()/random()?

[Georg-Johann Lay]

George Spelvin schrieb:
> A README in test/simulate would definitely help.  Based on my
> quick glance at things:
>
> [...]
>
> "You may add new files to the existing test directories freely, but adding
> a new directory requires updating the list in runtest.sh."
>
> However, I can't get it to work.  For me, it generates a near-infinite
> stream of errors:
>
> Simulate: time/aux.c atmega128 ... avr-gcc: error: 
> ../../avr/lib/avr51/atmega128/libatmega128.a: No such file or directory
> *** compile failed
> Simulate: time/declination.c atmega128 ... avr-gcc: error: 
> ../../avr/lib/avr51/atmega128/libatmega128.a: No such file or directory
> *** compile failed
> Simulate: time/equation.c atmega128 ... avr-gcc: error: 
> ../../avr/lib/avr51/atmega128/libatmega128.a: No such file or directory
> *** compile failed
>
> ...etc.  
> [921]$ ls -l  ../../avr/lib/avr51/atmega128/
> total 108
> -rw-rw-r-- 1 colin software 30385 Dec  5 20:12 Makefile
> -rw-rw-r-- 1 colin software  3434 Dec  5 20:00 Makefile.am
> -rw-rw-r-- 1 colin software 33194 Dec  5 20:01 Makefile.in
> -rw-rw-r-- 2 colin software  8884 Dec  5 20:14 crtm128.o
> -rw-rw-r-- 2 colin software  8884 Dec  5 20:14 gcrt1.o
> -rw-rw-r-- 1 colin software  9672 Dec  5 20:14 libcrt.a
>
> I can't find a "libatmega128.a" anywhere. :-(

This looks strange. With avr-libc from trunk and a reasonable
up to date avr-gcc (5.2+) the crt should be located in

$prefix/avr/lib/avr51/crtatmega128.o

The single-folder-per-device scheme didn't work out with
avr-gcc (for unexplicable specs problem with lto + spaces
in $prefix) and was just a transient.

avr-libc changed namings + dir layout at some time in the near
past, and avr-gcc adopted this, but avr-gcc does not query
for the exact avr-libc version.  Maybe you have run bootstrap
against an old compiler or something.  avr-libc tries to adjust
to different avr-gcc versions and conventions, but I dunno how
much testing this experienced...

So remove your avr-libc installation and build directory,
run bootstrap in avr-libc source, configure and make again.
And make sure the compiler (version) is the same.


Johann