/fpp /macro=no from IDE?

[jugoslavdujic2]

One of CVF FAQs (sort of) was that the Fortran Preprocessor, fpp did not do macro substitution by default, and that /m switch should be added to the compiler's command line to achieve that.

Now, I'm converting a large project from CVF to IVF, and I'm getting the reverse problem: we have a bunch (~20) of 2-letter preprocessor defines submitted through /D: compiler switches... and a number of variables in the code which accidentally have the same names as those defines. Apparently, in IVF, /fpp does do macro substitution by default, which is quite undesired in our case, as it produces syntactically invalid code... but I dont' see an obvious way to switch it off . fpp /help does say that /macro=no does the trick... but I don't see how I can enter it through Project properties in IDE (and specifying a custom build step for ~300 source files would be a major pain).

For now, I resolved the problem by renaming the offending variables in the code and/or switching fpp off for some files (that didnt'need preprocessing anyway). I could possibly make another workaround by specifying /DAB=AB (rather than /DAB) on the compiler's command line, but there's still something to be desired...

[Steven_L_Intel1]

The trick you're missing is that /macro=no has to be specified as an option to FPP, not to ifort. You do it like this:

/fpp:"/macro=no"

In the IDE, you'll have to add this under "Additional Options" rather than use the "Preprocess Files" property.

[jugoslavdujic2]

Ah, thanks. It does make sense, but it would make even more sense if it were mentioned somewhere in the compiler documentation. (I mean, just as a general note, like "To pass additional options to fpp, list them after a colon, enclosed in quotes, for example...")

[Steven_L_Intel1]

I agree - but I note that the ONLY place /macro is mentioned is the command-line help for FPP! I will pass this on to our documentation folks - it really should be documented properly.