Specify choice of VAX VMS Fortran extensions enabled.
The keywords specifier must be one of the following suboptions or a comma-delimited list of a selection of these.
blank_zero |
Interpret blanks in formatted input as zeros on internal files. |
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debug |
Interpret lines starting with the character ’D’ to be regular Fortran statements rather than comments, as in VMS Fortran. |
rsize |
Interpret unformatted record size to be in words rather than bytes. |
struct_align |
Layout components of a VAX structure in memory as in VMS Fortran, without padding. Note: this can cause data misalignments, and should be used with —xmemalign to avoid such errors. |
%all |
Enable all these VAX VMS features. |
%none |
Disable all these VAX VMS features. |
Sub-options can be individually selected or turned off by preceeding with no%.
Example:
-vax=debug,rsize,no%blank_zero