fprintf(stderr, ...) fails

[Bjoern Doebel]

Hi,

> Maybe, it's because I am using a older drops version (I'll update it 
> right now),
> but when I'm compiling it in l4env - mode, I get following error messages:
>     ../../../lib/libxvidcore.a(xvid.o): In function `sigill_check':
>     xvid.c:(.text+0x30): undefined reference to `signal'
>     xvid.c:(.text+0x68): undefined reference to `signal'
>     collect2: ld returned 1 exit status
>     make[1]: *** [Program] Fehler 1
> (I use the xvid-library, which is using the signal - function).

Sginalling is supported by the l4/pkg/signal package. Build the package 
and use the following two steps to enable POSIX signals:

- link your applications with libc_be_l4sig and libsignal
- start the signal_server along with your application

Bjoern