3.18.53 VMS Options

These ‘-m’ options are defined for the VMS implementations:

-mvms-return-codes

Return VMS condition codes from main. The default is to return POSIX-style condition (e.g. error) codes.

-mdebug-main=prefix

Flag the first routine whose name starts with prefix as the main routine for the debugger.

-mmalloc64

Default to 64-bit memory allocation routines.

-mpointer-size=size

Set the default size of pointers. Possible options for size are ‘32’ or ‘short’ for 32 bit pointers, ‘64’ or ‘long’ for 64 bit pointers, and ‘no’ for supporting only 32 bit pointers. The later option disables pragma pointer_size.