Ah, you're right. I'm still suspicious about how this behavior appeared on your machine. Would be interesting to check a vanilla build or gcc-10 branch. I'm still learning toward it being unintentional.
On Jan 20, 2020 07:57, Lisandro Dalcin <[email protected]> wrote:
On Mon, 20 Jan 2020 at 17:07, Jed Brown <[email protected]> wrote:From my man page (contradicting the behavior Lisandro observed):
-MD -MD is equivalent to -M -MF file, except that -E is not implied. The driver
determines file based on whether an -o option is given. If it is, the driver uses
its argument but with a suffix of .d, otherwise it takes the name of the input
file, removes any directory components and suffix, and applies a .d suffix.
Lisandro, what does your man page say?
It says exactly the same. But you are confusing the flag, -MF is about naming the output dep filename, i.e. ompi-optg/obj/sys/objects/init.d in your example, that is just fine, I do get that file with that name.My issue is with the contents GCC writes within that dep file, specifically the TARGET, which can be specified with -MT, but it is cumbersome to do, unless you use "-MT $@", though no idea how to update configure for that.--Lisandro Dalcin
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Research Scientist
Extreme Computing Research Center (ECRC)
King Abdullah University of Science and Technology (KAUST)
http://ecrc.kaust.edu.sa/
