Raspberry build instructions issue

[mickod]

Raspberry Pi 4 - version info: PRETTY_NAME="Raspbian GNU/Linux 10 (buster)" NAME="Raspbian GNU/Linux" VERSION_ID="10" VERSION="10 (buster)" VERSION_CODENAME=buster Linux raspberrypi 5.4.83-v7l+ #1379 SMP Mon Dec 14 13:11:54 GMT 2020 armv7l GNU/Linux

Following build instructions here:

• https://github.com/mpromonet/v4l2rtspserver/wiki/Setup-on-Pi

At the make step the following error is displayed and the make stops:

[ 9%] Building CXX object CMakeFiles/libv4l2rtspserver.dir/live/groupsock/GroupsockHelper.cpp.o /home/pi/v4l2rtspserver/live/groupsock/GroupsockHelper.cpp: In function ‘void copyAddress(sockaddr_storage&, const sockaddr*)’: /home/pi/v4l2rtspserver/live/groupsock/GroupsockHelper.cpp:859:17: error: ‘const struct sockaddr’ has no member named ‘sa_len’ if (from->sa_len < sizeof (struct sockaddr_in)) return; // sanity check ^~~~~~ /home/pi/v4l2rtspserver/live/groupsock/GroupsockHelper.cpp:868:17: error: ‘const struct sockaddr’ has no member named ‘sa_len’ if (from->sa_len < sizeof (struct sockaddr_in6)) return; // sanity check ^~~~~~ make[2]: *** [CMakeFiles/libv4l2rtspserver.dir/build.make:206: CMakeFiles/libv4l2rtspserver.dir/live/groupsock/GroupsockHelper.cpp.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:110: CMakeFiles/libv4l2rtspserver.dir/all] Error 2 make: *** [Makefile:163: all] Error 2

Some googling suggest that some linux versions do not have 'sa_len ' as a member of sockaddr, but as the build instructions presumably worked for others on Raspberry releases I am not sure that this is the root cause, and if it is what the best way to correct or work around it is.

[mpromonet]

Hi,

This is because live555 latest release doesnot build on linux with release 2021.02.05. It will probably be fixed soon. You can remove the lines if (from->sa_len < sizeof (struct sockaddr_in6)) return; // sanity check to build. You may build using cmake -D LIVE555URL=https://download.videolan.org/pub/contrib/live555/live.2021.01.29.tar.gz .

Best Regards, Michel.

[Paul760]

Last week there was an error with ‘ourIPAddress’ was not declared and an issue about that was closed without any information. Now 7 days later I tried it for the second time and I get the same error with ‘const struct sockaddr’ has no member named ‘sa_len’...

Using cmake -D LIVE555URL=https://download.videolan.org/pub/contrib/live555/live.2021.01.29.tar.gz . doesnot change anything. On a clean install I try:

sudo apt-get install cmake liblog4cpp5-dev libv4l-dev git clone https://github.com/mpromonet/v4l2rtspserver.git cd v4l2rtspserver/ cmake -D LIVE555URL=https://download.videolan.org/pub/contrib/live555/live.2021.01.29.tar.gz . make

But with make I get the same error with the new cmake -d as with cmake .

$ cmake -D LIVE555URL=https://download.videolan.org/pub/contrib/live555/live.2021.01.29.tar.gz . -- CMAKE_TOOLCHAIN_FILE= -- CMAKE_C_COMPILER=/usr/bin/cc -- CMAKE_CXX_COMPILER=/usr/bin/c++ -- Log4Cpp available /usr/lib/arm-linux-gnueabihf/liblog4cpp.so running git submodule update --init 2>&1 -- SystemD available -- SystemD directory '/lib/systemd/system' -- Configuring done -- Generating done -- Build files have been written to: /home/pi/v4l2rtspserver pi@desktop1:~/v4l2rtspserver $ make [ 4%] Built target v4l2wrapper [ 4%] Building CXX object CMakeFiles/libv4l2rtspserver.dir/live/groupsock/GroupsockHelper.cpp.o /home/pi/v4l2rtspserver/live/groupsock/GroupsockHelper.cpp: In function ‘void copyAddress(sockaddr_storage&, const sockaddr*)’: /home/pi/v4l2rtspserver/live/groupsock/GroupsockHelper.cpp:859:17: error: ‘const struct sockaddr’ has no member named ‘sa_len’ if (from->sa_len < sizeof (struct sockaddr_in)) return; // sanity check ^~ /home/pi/v4l2rtspserver/live/groupsock/GroupsockHelper.cpp:868:17: error: ‘const struct sockaddr’ has no member named ‘sa_len’ if (from->sa_len < sizeof (struct sockaddr_in6)) return; // sanity check ^~ make[2]: [CMakeFiles/libv4l2rtspserver.dir/build.make:206: CMakeFiles/libv4l2rtspserver.dir/live/groupsock/GroupsockHelper.cpp.o] Error 1 make[1]: [CMakeFiles/Makefile2:110: CMakeFiles/libv4l2rtspserver.dir/all] Error 2 make: *** [Makefile:163: all] Error 2

[mpromonet]

Hi @Paul760

Maybe you did not clean the CMake files, the live folder and the live555.tar.gz ? I just run your commands :

git clone https://github.com/mpromonet/v4l2rtspserver.git
cd v4l2rtspserver/
cmake -D LIVE555URL=https://download.videolan.org/pub/contrib/live555/live.2021.01.29.tar.gz .
make

and it completed.

I close the issue

without any information

because I fixed the problem and the issue was not showing research effort then I did the same answering effort.

Best Regards, Michel.

[mickod]

Thanks, @mpromonet.

I can confirm the following steps resulted in a a clean build - I first deleted my existing v4l2rtspserver directory:

git clone https://github.com/mpromonet/v4l2rtspserver.git cd v4l2rtspserver/ cmake -D LIVE555URL=https://download.videolan.org/pub/contrib/live555/live.2021.01.29.tar.gz . make sudo make install

If the fix to the regular build is not imminent it might be worth updating the setup instructions with a note about this also?

[mpromonet]

Hi @mickod

Usually live555 is fixing quickly this kind of mistake, I guess they are using FreeBSD, and not check if Linux is building, but many users do this and report in the mailing list http://lists.live555.com/pipermail/live-devel/ I will probably add a note in the README, as in the past week, compatibility or build was broken severals times, but this is not common, they seems to work on IPv6 support.... My approach for this project is to follow the latest, I would like to avoid to pin to a version.

Best Regards, Michel.

[mickod]

@mpromonet - makes sense. Thanks.