Hello, I downloaded ROOT 6.12/02 and tried to compile it. After few minutes, I get the following error
CMake Error at LZ4-stamp/LZ4-download-RelWithDebInfo.cmake:16 (message):
Command failed: 1
‘/opt/cmake/bin/cmake’ ‘-Dmake=’ ‘-Dconfig=’ ‘-P’ ‘/home/cea/root-6.12.02/builddir/LZ4-prefix/src/LZ4-stamp/LZ4-download-RelWithDebInfo-impl.cmake’
CMakeFiles/LZ4.dir/build.make:89: recipe for target ‘LZ4-prefix/src/LZ4-stamp/LZ4-download’ failed
make: *** [LZ4-prefix/src/LZ4-stamp/LZ4-download] Error 1
CMakeFiles/Makefile2:405: recipe for target ‘CMakeFiles/LZ4.dir/all’ failed
make: *** [CMakeFiles/LZ4.dir/all] Error 2
I attach the LZ4-download-*.log files but it seems that the problem comes from the fact the computer on which I try to install this ROOT version is not connected to the Internet.
I already suffered of this with ROOT 6.10. I gave some arguments explaining why I think that supposing that the computer is connected to the Internet is not a good idea in the post I linked and @faustus123 gave other arguments.
Could you change cmake in order it fails if LZ4 is not found on the computer (without supposing that it could get it from the Internet later)?