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[175.33.111.144]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-736be0ae3desm5627690b3a.12.2025.03.10.17.00.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Mar 2025 17:00:36 -0700 (PDT) Sender: Duncan Roe From: Duncan Roe X-Google-Original-From: Duncan Roe Date: Tue, 11 Mar 2025 11:00:32 +1100 To: "G.W. Haywood" Cc: Netfilter Development , Jozsef Kadlecsik Subject: Re: Documentation oddity. Message-ID: Reply-To: duncan_roe@optusnet.com.au Mail-Followup-To: "G.W. Haywood" , Netfilter Development , Jozsef Kadlecsik References: <9190a743-e6ac-fa2a-4740-864b62d5fda7@jubileegroup.co.uk> <4991be2e-3839-526f-505e-f8dd2c2fc3f3@jubileegroup.co.uk> Precedence: bulk X-Mailing-List: netfilter-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4991be2e-3839-526f-505e-f8dd2c2fc3f3@jubileegroup.co.uk> Hi Ged, On Mon, Mar 10, 2025 at 06:00:40PM +0000, G.W. Haywood wrote: > Hi there, > > Another one for you. > > In the docs at > > https://www.netfilter.org/projects/libnetfilter_queue/doxygen/html/ > > there is given a command to compile the sample code in nf-queue.c. > > The command given is > > gcc -g3 -ggdb -Wall -lmnl -lnetfilter_queue -o nf-queue nf-queue.c > > Here, and I suspect almost everywhere else, that doesn't work. Works here with gcc versions 11.2.0 and 14.2.0. > > Should the command not be something more like the one below? > > gcc -o nf-queue nf-queue.c -g3 -ggdb -Wall -lmnl -lnetfilter_queue gcc doesn't care, but the conventional order for command arguments is option args first, as in the docs. > The -ggdb argument is obsolete and may be slated for removal. Can you please try this: gcc -g3 -gdwarf-4 -Wall -lmnl -lnetfilter_queue -o nf-queue nf-queue.c If it still fails for you, please let me know at least 2 things: 1. What is the error message 2. The first line output bu the command "gcc --version" Cheers ... Duncan.