3.4.100 –vax=keywords
Specify choice of legacy 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.
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debug
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Interpret lines starting with the character ’D’ to be regular Fortran statements
rather than comments, as in VMS Fortran.
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rsize
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Interpret unformatted record size to be in words rather than bytes.
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struct_align
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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.
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%all
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Enable all these VAX VMS features.
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%none
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Disable all these VAX VMS features.
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Sub-options can be individually selected or turned off by preceding with
no%.
Example:
-vax=debug,rsize,no%blank_zero
The default is -vax=%none. Specifying -vax without any
suboptions is equivalent to -vax=%all.