Our CMake project used to forcefully create and use two different build directories: "build" and "tmp".
This commit changes the behavior so that only the build directory CMake is ran in is used.
The "configure" script now runs CMake in "build" by default, instead of "tmp".
Currently the systemd service unit files are installed
into /lib/systemd/system if that directory exists. This
might not be optimal for every user, e.g. when the build
system is not the target system or when building as an
unprivileged user using CMAKE_INSTALL_PREFIX.
Make this configurable by adding a cached cmake variable
CMAKE_INSTALL_SYSTEMD_UNITDIR. Usage:
- install unit files into /lib/systemd/system if it exists (old
behavior)
cmake
- don't install unit files
cmake -D CMAKE_INSTALL_SYSTEMD_UNITDIR=
- install into absolute path
cmake -D CMAKE_INSTALL_SYSTEMD_UNITDIR=/path
- install into path relative to ${CMAKE_INSTALL_PREFIX}
cmake -D CMAKE_INSTALL_SYSTEMD_UNITDIR=path
