Problem building root on ubuntu 20.04.3 (WSL2)

ROOT
1

Trying to build root and getting the following errors:

[ 79%] Built target RSQLite
/usr/bin/ld: cannot find -lXROOTD_XrdNet_LIBRARY-NOTFOUND
/usr/bin/ld: cannot find -lXROOTD_XrdOuc_LIBRARY-NOTFOUND
/usr/bin/ld: cannot find -lXROOTD_XrdSys_LIBRARY-NOTFOUND
/usr/bin/ld: cannot find -lXROOTD_XrdClient_LIBRARY-NOTFOUND
/usr/bin/ld: cannot find -lXROOTD_Xrd_LIBRARY-NOTFOUND
/usr/bin/ld: cannot find -lXROOTD_XrdNetUtil_LIBRARY-NOTFOUND
collect2: error: ld returned 1 exit status
make[2]: *** [net/netxng/CMakeFiles/NetxNG.dir/build.make:139: lib/libNetxNG.so] Error 1
make[1]: *** [CMakeFiles/Makefile2:31010: net/netxng/CMakeFiles/NetxNG.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs…
Scanning dependencies of target G__Imt
[ 79%] Building CXX object core/imt/CMakeFiles/G__Imt.dir/G__Imt.cxx.o
[ 79%] Built target G__Imt
make: *** [Makefile:152: all] Error 2

ROOT Version: v6-26-10
Platform: Ubuntu 20.04.3 (WSL2)
Compiler: gcc 9.3.0

2

You can try the pre-built package I posted here: Unofficial ROOT 6.26.10 package for Ubuntu 22.04.

3

Try to configure your ROOT using:
cmake -Dall=ON -Dxrootd=ON -Dbuiltin_xrootd=ON ...
or:
cmake -Dall=ON -Dxrootd=OFF ...

BTW. The ROOT Team provides ready-to-use binary distributions for some systems (see “Download a pre-compiled binary distribution” therein), including various Ubuntu versions, which you just need to download and unpack.

For Ubuntu 20.04 / x86_64 / gcc 9.4: https://root.cern/download/?C=M;O=A;P=*[uU][bB][uU][nN][tT][uU]*20*

4

Thank you very much, the cmake flags for xroot helped.
Thanks for the prebuild suggestions as well.