From help-octave-request at che dot utexas dot edu  Tue Sep 27 08:23:37 1994
From: SANDS at vsdec dot nl dot nuwc dot navy dot mil
To: help-octave at che dot utexas dot edu
Date: Tue, 27 Sep 1994 09:23:03 -0400 (EDT)


I have been having problems compiling octave on a DecStation 5000 so
I read the BUGS file and it says:

   * With version 2.5.7 of gcc, you may need to edit some files in the
     gcc include subdirectory to add prototypes for functions there.
     For example, Ultrix 4.2 needs proper declarations for the
     `signal()' and the `SIG_IGN' macro in the file `signal.h'.

Since I can compile octave on a SPARC ok I hacked the signal.h file
to look like the SPARC signal.h file in the places where signal() 
and SIG_IGN are declared: 

   .
   .
   .

#define	SIG_ERR		((void (*)())(-1))
#define	SIG_DFL		((void (*)())( 0))
#define	SIG_IGN		(void (*)())1


#ifdef KERNEL
#define	SIG_CATCH	((void (*)())( 2))

   .
   .
   .

   .
   .
   .
/*
 *  prototypes
 *
 */
void	(*signal())();
int	raise( int __sig );
int 	kill( pid_t __pid, int __sig );
int 	sigemptyset( sigset_t *__set );
   .
   .
   .

I'm not sure if this is correct since I don't write C
code but it felt good when I did it (the error I was
getting went away). On the other hand I now get an error 
during the final load stage of the build:

   .
   .
   .

/usr/lib/cmplrs/cc/ld
Undefined:
s_abort
   .
   .
   .

Can someone tell me if what I did makes sense? What is
the proper fix for Ultrix? I'm running Ultrix 4.4 with
gcc 2.5.7 and libg++ 2.5.2. Is gcc 2.5.8 better? What
to do?

Thanks 
Scott Sands