/A Build all evaluated targets
/B Build if time stamps are equal
/C Suppress output messages
/D Display build information
/E Override env-var macros
/HELP Display brief usage message
/I Ignore exit codes from commands
/K Build unrelated targets on error
/N Display commands but do not execute
/NOLOGO Suppress copyright message
/P Display NMAKE information
/Q Check time stamps but do not build
/R Ignore predefined rules/macros
/S Suppress executed-commands display
/T Change time stamps but do not build
/U Dump inline files
/Y Disable batch-mode
/? Display brief usage message
