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From: haug@almira.uucp (Brian R Haug)
Newsgroups: comp.sys.ncr
Subject: Re: Latest RCS and gnudiff (Really alloca comments)
Message-ID: <1991Mar16.212228.22669@almira.uucp>
Date: 16 Mar 91 21:22:28 GMT
References: <1991Mar8.205343.18084@seachg.uucp> <1991Mar11.153710.15246@holos0.uucp> <1991Mar13.124251.16346@nncrcae.Columbia.NCR.COM>
Reply-To: haug@Columbia.NCR.COM (Brian Haug)
Organization: Personal machine, Columbia, SC
Lines: 12

In article <1991Mar13.124251.16346@nncrcae.Columbia.NCR.COM> wescott@Columbia.NCR.COM (Mike Wescott) writes:
>In article <1991Mar11.153710.15246@holos0.uucp> lbr@holos0.uucp (Len Reed) writes:
>> In article <1991Mar8.205343.18084@seachg.uucp> jalsop@seachg.UUCP (John Alsop) writes:
>> Don't use -O2 with any Gnu
>> stuff--use -O1.  High optimization breaks alloca on the Tower, and the Gnu
>> folks *love* alloca.
>
>Use Doug Gwyn's alloca package or add -W2,-a,-a to CFLAGS for just those
>files that call alloca.

Actually, you need to use -W2,-aat or -W2,-a,-a,-t, this is documented in the
warnings section of the cc(1) man page.