Gcc/10.2.0/gcc/VMS-Options
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3.19.57 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 disablespragma pointer_size
.