Path: utzoo!attcan!uunet!auspex!guy
From: guy@auspex.UUCP (Guy Harris)
Newsgroups: comp.windows.x
Subject: Re: R3 on Sun-4/260 running SYS4-3.2
Message-ID: <440@auspex.UUCP>
Date: 12 Nov 88 05:07:17 GMT
References: <EHO.88Nov10122259@reason.Princeton.EDU> <38@eplrx7.UUCP>
Reply-To: guy@auspex.UUCP (Guy Harris)
Distribution: comp
Organization: Auspex Systems, Santa Clara
Lines: 21

>This version of the SunOS seems to be missing the symbol "alloca".

You got it.  There is no library routine named "alloca" on SPARC
machines.  There are, however:

	1) a library routine named __builtin_alloca

	2) an include file named <alloca.h>, that defines "alloca(x)" as
	   "__builtin_alloca(x)"

so that the compiler will be able to make "alloca(x)" work right.  (The
name change permits people to have routines named "alloca" in their code
that does not behave like "__builtin_alloca"; the compiler special-cases
calls to "__builtin_alloca", and leaves calls to "alloca" alone.)

Any code compiled using the Sun compilers on a Sun-4 has to include
<alloca.h> to work correctly.  Try

	#ifdef sparc
	#include <alloca.h>
	#endif