From:	CSBVAX::MRGATE!GG.SPY@ISUMVS@SMTP 12-APR-1988 21:47
To:	ARISIA::EVERHART
Subj:	Re: Unix MAKEFILE equivalent on VMS


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Date:      Mon, 11 Apr 88 09:15:46 CDT
To:        <INFO-VAX@KL.SRI.COM>
From:      "Dr. FrankenWylbur" <GG.SPY%ISUMVS.BITNET@CUNYVM.CUNY.EDU>
Subject:   Re: Unix MAKEFILE equivalent on VMS

> From:         Chandresh Padmanabhan
>               <uranus.cis.ohio-state.edu!cpadm@TUT.CIS.OHIO-STATE.EDU>
> Subject:      Unix MAKEFILE equivalent on VMS
>
>        I've been fooling around with the idea of a MAKEFILE eqvt on a VMS4.7
> system, without much luck. Except for recompiling and linking all source files
> whenever I make a change to one, I haven't been able to find any RMS routines
> etc. which will permit me to get the date of modification field of files, so
> I can selectively recompile and link only un-updated files. Not that it
> matters, I work mostly in F77 and recompiling and linking 10 or 15 pgxs'
> each day gets to be a real proctological nuisance !
>
>        I'm pretty sure some VMS guru has come up with an equivalent; I'd
> appreciate any info on how to do this, or a .COM for it. Thanks in advance !
>

   What you want to use (if you are using a .COM file) is the lexical functions
f$file_attributes and f$cvtime...

        moddate = f$cvtime(f$file_attributes("xyz.for","RDT"))
        objdate = f$cvtime(f$file_attributes("xyz.obj","RDT"))
        if (moddate .gts. objdate) then .... !recompile xyz.for

John Hascall
Iowa State University Computation Center
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