From: Thomas Petazzoni via buildroot <buildroot@buildroot.org>
To: Bernd Kuhls <bernd@kuhls.net>
Cc: buildroot@buildroot.org
Subject: Re: [Buildroot] [PATCH 1/1] package/php: fix OpenSSL detection for SNMP extension
Date: Fri, 21 Aug 2026 10:42:19 +0200 [thread overview]
Message-ID: <aogPFYDwimNddpnl@windsurf> (raw)
In-Reply-To: <20260808060556.4358-1-bernd@kuhls.net>
Hello Bernd,
On Sat, Aug 08, 2026 at 08:05:56AM +0200, Bernd Kuhls wrote:
> Buildroot commit a9e5cf6ac2cb7ba62d23c842899b3f7816eca14c bumped the
> package to version 8.4.13 which added upstream commit:
> https://github.com/php/php-src/commit/dbdc79df954a22495d0939eceb3ab4e09ced1c1e
> introducing changes for netsnmp detection.
>
> Since this bump building php with its SNMP extension enabled and openssl
> globally disabled is broken:
>
> /home/autobuild/autobuild/instance-12/output-1/host/lib/gcc/i686-buildroot-linux-gnu/15.3.0/../../../../i686-buildroot-linux-gnu/bin/ld:
> ext/snmp/snmp.o: in function `snmp_session_set_security':
> snmp.c:(.text+0x677): undefined reference to `usmHMAC384SHA512AuthProtocol'
> /home/autobuild/autobuild/instance-12/output-1/host/lib/gcc/i686-buildroot-linux-gnu/15.3.0/../../../../i686-buildroot-linux-gnu/bin/ld:
> snmp.c:(.text+0x9c2): undefined reference to `usmHMAC192SHA256AuthProtocol'
>
> because php configure misdetects the presence of openssl support in
> netsnmp although it is not present.
>
> To fix the problem we add some autoconf variables to forcefully disable
> OpenSSL support in the SNMP extension when OpenSSL is disabled.
>
> The build error could be reproduced with php 8.4.17 but could not be
> reproduced with php 8.3.24 so a backport to LTS branches should be
> considered.
I don't really understand this paragraph. If the issue does NOT happen
with php 8.3.x that is in 2025.02.x, then why should the backport be
considered?
> +ifeq ($(BR2_PACKAGE_OPENSSL),)
> +PHP_CONF_ENV += \
> + ac_cv_have_decl_usmHMAC192SHA256AuthProtocol=no \
> + ac_cv_have_decl_usmHMAC384SHA512AuthProtocol=no
> +endif
As usual, I don't like this approach. If the detection of NetSNMP by
the PHP configure.ac is broken, then it should be fixed rather than
worked around. Could you have a look at doing a proper fix, that can
be submitted upstream?
Thanks a lot!
Thomas
--
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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prev parent reply other threads:[~2026-08-21 8:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-08 6:05 [Buildroot] [PATCH 1/1] package/php: fix OpenSSL detection for SNMP extension Bernd Kuhls
2026-08-21 8:42 ` Thomas Petazzoni via buildroot [this message]
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