[Issue 10147] Make -w identical to -wi and deprecate it

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=10147



--- Comment #8 from bearophile_hugs at eml.cc 2013-06-29 16:38:45 PDT ---
I have closed down my Issue 10321 because despite it's not exactly a
duplicated, I think it's better to aggregate them.

Summarizing, the needs and problems are:
- You have explained well why the "-w" warning is bad.
- Lot of people don't see the warnings switch of the compiler, so they don't
see the warnings, and this makes their programs worse or they don't understand
some other errors that are generated later. So I believe the informational
warnings should be active on default (and the compiler should have a switch to
disable them in the rare cases when you don't want them).
- On the other hand Andrej Mitrovic (and probably others, now or in future)
want a switch like in GCC that halts the compilation at the first warning. I
think this is not a common need, but it exists. I don't know how to make this
work considering the problems of the "-w" switch.

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