usage: ninja [options] [targets...]
if targets are unspecified, builds the 'default' target (see manual).
options:--version
print ninja version ("1.12.1")
-v, --verbose
show all command lines while building
--quiet
don't show progress status, just command output
-C DIR change to DIR before doing anything else
-f FILE
specify input build file [default=build.ninja]
-j N run N jobs in parallel (0 means infinity) [default=#CPUs]
-k N keep going until N jobs fail (0 means infinity) [default=1]
-l N do not start new jobs if the load average is greater than N
-n dry run (don't run commands but act like they succeeded)
-d MODE
enable debugging (use '-d list' to list modes)
-t TOOL
run a subtool (use '-t list' to list subtools)
terminates toplevel options; further flags are passed to the tool
-w FLAG
adjust warnings (use '-w list' to list warnings)