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Date:      Mon, 07 Dec 2009 06:49:45 +0000
From:      Matthew Seaman <m.seaman@infracaninophile.co.uk>
To:        FreeBSD Questions <freebsd-questions@freebsd.org>
Subject:   Re: Net-SNMP and ProPolice under 8.0-RELEASE
Message-ID:  <4B1CA589.4010300@infracaninophile.co.uk>
In-Reply-To: <20091207010358.GG70263@basement.net>
References:  <20091207010358.GG70263@basement.net>

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Trix Farrar wrote:
> The Net-SNMP port (net-mgmt/net-snmp) builds and appears to work just
> fine, but I cannot build the SNMP module for PHP (net-mgmt/php5-snmp).
>=20
> Attempting to build php5-snmp fails during the configure stage.  The
> error message says to check the config.log.  In the
> /usr/ports/net-mgmt/php5-snmp/work/php-5.2.11/ext/snmp/config.log file
> I found:
>=20
> configure:5967: checking for snmp_parse_oid in -lnetsnmp
> configure:6002: cc -o conftest -O2 -pipe -fno-strict-aliasing  -R/usr/l=
ocal/lib -L/usr/local/lib  -L/usr/local/lib -lcrypto -lssl -rpath=3D/usr/=
local/lib -lnetsnmp -lelf -lm -lkvm -ldevstat conftest.c -lnetsnmp   >&5
> /usr/local/lib/libnetsnmp.so: undefined reference to `__stack_chk_fail_=
local'
>=20
> Google-ing around, I have found that the __stack_chk_fail_local symbol
> is a side effect of compiling with the '-fstack-protector' option for
> gcc -- which, I believe, is the default for 8.0-RELEASE.  Searching
> /usr/src, I found that this function is referenced in
> /usr/src/lib/libc/sys/stack_protector.c, but appears to be defined in
> /usr/src/contrib/gcclibs/libssp/ssp.c, which is part of GCC.  I
> believe that this winds up in /lib/libssp.so.0 -- which also exists
> under 7.2-RELEASE.
>=20
> The copy of net-mgmt/net-snmp that I compiled under 7.2-RELEASE does
> not contain the __stack_chk_fail_local symbol.
>=20
> What am I missing?  I tried adding '-lssp' to the --with-libs option
> included in CONFIGURE_ARGS in /usr/ports/net-mgmt/net-snmp/Makefile
> with no change in behavior.  As it stands, I cannot build anything
> that relies on Net-SNMP.
>=20

Yes -- you're not alone.  I've seen exactly the same thing, but only on
one machine.  It works perfectly on an amd64 box running 8.0-RELEASE-p1,
but fails miserably on an i386 box running 8.0-STABLE.

Time to warm up send-pr(1).

	Cheers,

	Matthew


--=20
Dr Matthew J Seaman MA, D.Phil.                   7 Priory Courtyard
                                                  Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey     Ramsgate
                                                  Kent, CT11 9PW


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