vlc-3.0.18 compilation errors with live555

[amcrest]

My project is to include live555 in vlc for use in Debian 11 to view rtsp streams. Following instructions in http://live555.com/liveMedia/#config-unix no errors were encountered installing live555-latest.tar.gz to the default location. In vlc-3.0.18 however:

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./configure --enable-live555 ... checking for live555... no configure: WARNING: Package 'live555', required by 'virtual:world', not found. checking for live555 version 1324598400 or later... no configure: WARNING: live555 is missing or its installed version is too old: Version 2011.12.23 or later is required to proceed. You can get an updated one from http://www.live555.com/liveMedia . configure: error: Update live555 or pass --disable-live555 to disable RTSP input support.

How might I resolve this compilation issue, please? I'd prefer to not use the vlc "snap" installation method if at all possible.

[Rémi Denis-Courmont]

live555 is not found in the build environment that you use to build VLC.

[amcrest]

Yes, that's rather obvious. The question is why can't the vlc configure script detect the most recent live555 installation? The section of code that generates the error is somewhat convoluted and contains many variables that are difficult for me to decipher, so I was hoping a more knowledgeable person could assist, please.

[amcrest]

In config.log:

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... configure:34445: checking for live555 configure:34452: $PKG_CONFIG --exists --print-errors "live555" Package live555 was not found in the pkg-config search path. Perhaps you should add the directory containing `live555.pc' to the PKG_CONFIG_PATH environment variable Package 'live555', required by 'virtual:world', not found configure:34455: $? = 1 configure:34469: $PKG_CONFIG --exists --print-errors "live555" Package live555 was not found in the pkg-config search path. Perhaps you should add the directory containing `live555.pc' to the PKG_CONFIG_PATH environment variable Package 'live555', required by 'virtual:world', not found configure:34472: $? = 1 configure:34486: result: no Package 'live555', required by 'virtual:world', not found configure:34503: WARNING: Package 'live555', required by 'virtual:world', not found. configure:34553: checking for live555 version 1324598400 or later configure:34576: g++ -E -I/usr/include/liveMedia -I/usr/include/groupsock -I/usr/include/BasicUsageEnvironment -I/usr/include/UsageEnvironment conftest.cpp conftest.cpp:176:10: fatal error: liveMedia_version.hh: No such file or directory 176 | #include <liveMedia_version.hh> | ^~~~~~~~~~~~~~~~~~~~~~ compilation terminated. ...

So I'm wondering what needs to be changed to find it, please?

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$ find /usr -type f -name liveMedia_version.hh /usr/local/include/liveMedia/liveMedia_version.hh