From hir at ratio.de  Thu Nov 18 05:04:30 1999
From: hir at ratio.de (hir)
Date: Thu, 18 Nov 1999 14:04:30 +0100
Subject: Compiling Bro
Message-ID: <001f01bf31c5$73f94ea0$af4ca8c0@hir>

Hallo all!

I've tried to compile Bro on Linux version 2.2.12 with gcc (version
egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)), but it didn?t work. The
problem is, that the symbols from yacc/lex (yylhs, yylen, yydefred,
yydgoto,
) are defined in libpcap and in Bro. I got the following errors:

../libpcap-0.4/libpcap.a(grammar.o)(.data+0x3c): multiple definition of
`yylhs'
parse.o(.data+0x40): first defined here
/usr/i486-linux/bin/ld: Warning: size of symbol `yylhs' changed from 272 to
204 in grammar.o
../libpcap-0.4/libpcap.a(grammar.o)(.data+0x108): multiple definition of
`yylen'
parse.o(.data+0x160): first defined here
/usr/i486-linux/bin/ld: Warning: size of symbol `yylen' changed from 272 to
204 in grammar.o
../libpcap-0.4/libpcap.a(grammar.o)(.data+0x1d4): multiple definition of
`yydefred'
parse.o(.data+0x280): first defined here
/usr/i486-linux/bin/ld: Warning: size of symbol `yydefred' changed from 588
to 300 in grammar.o

My Questions: Why does libpcap export this symbols? Why does nobody but me
has this problem and what can I do to solve it?

Hartmut Irrgang



From vern at ee.lbl.gov  Sun Nov 21 00:23:36 1999
From: vern at ee.lbl.gov (Vern Paxson)
Date: Sun, 21 Nov 1999 00:23:36 PST
Subject: Compiling Bro
In-Reply-To: Your message of Thu, 18 Nov 1999 14:04:30 PST.
Message-ID: <199911210823.AAA04822@daffy.ee.lbl.gov>

> I've tried to compile Bro on Linux version 2.2.12 with gcc (version
> egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)), but it didn't work. The
> problem is, that the symbols from yacc/lex (yylhs, yylen, yydefred,
> yydgoto,) are defined in libpcap and in Bro. I got the following errors:

Those are all yacc symbols.  I suspect the problem is that your version
of yacc doesn't support the -p <sym prefix> flag.  If not, then you'll
have to get one that does, such as GNU bison.

		Vern