Advanced commands:
  //compileToOC, oc         compile project to Objective C code
  //run                     run the project (with Tiny C backend; Linux only!)
  //pretty                  pretty print the inputfile
  //genDepend               generate a DOT file containing the
                            module dependency graph
  //listDef                 list all defined conditionals and exit
  //check                   checks the project for syntax and semantic
  //parse                   parses a single file (for debugging Nimrod)

Advanced options:
  -w, --warnings:on|off     turn all warnings on|off
  --warning[X]:on|off       turn specific warning X on|off
  --hints:on|off            turn all hints on|off
  --hint[X]:on|off          turn specific hint X on|off
  --lib:PATH                set the path to the system.nim library
  -c, --compileOnly         compile only; do not assemble or link
  --noLinking               compile but do not link
  --noMain                  do not generate a main procedure
  --genScript               generate a compile script (in the 'nimcache'
                            subdirectory named 'compile_$project$scriptext')
  --os:SYMBOL               set the target operating system (cross-compilation)
  --cpu:SYMBOL              set the target processor (cross-compilation)
  --debuginfo               enables debug information
  -t, --passc:OPTION        pass an option to the C compiler
  -l, --passl:OPTION        pass an option to the linker
  --genMapping              generate a mapping file containing
                            (Nimrod, mangled) identifier pairs
  --lineDir:on|off          generation of #line directive on|off
  --checkpoints:on|off      turn checkpoints on|off; for debugging Nimrod
  --skipCfg                 do not read the general configuration file
  --skipProjCfg             do not read the project's configuration file
  --gc:refc|boehm|none      use Nimrod's native GC|Boehm GC|no GC
  --index:FILE              use FILE to generate a documenation index file
  --putenv:key=value        set an environment variable
  --listCmd                 list the commands used to execute external programs
  --parallelBuild=0|1|...   perform a parallel build
                            value = number of processors (0 for auto-detect)
  --verbosity:0|1|2|3       set Nimrod's verbosity level (0 is default)
  -v, --version             show detailed version information