When trying to compile root 6.07.06 with alien support, all seemed find, but the libRAliEn.so was not built (while root-config --features showed alien support).
Looking a bit through the cmake files showed that in net/CMakeLists.txt:
so that alien is ignored without warning when xrootd is not confirgured. Could you add a warning in the cmake system to flag this? I guess FindALIEN.cmake should check that xrootd is enabled?
On the documentation page:
I would suggest to add under the 'external libraries', that the following variables are needed for XROOTD and ALIEN:
Thanks, and best regards,