[Issue 17058] New: dmd -shared -od=/tmp/d09/ incorrectly creates lib in cwd

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=17058

          Issue ID: 17058
           Summary: dmd -shared -od=/tmp/d09/ incorrectly creates lib in
                    cwd
           Product: D
           Version: D2
          Hardware: x86
                OS: Mac OS X
            Status: NEW
          Severity: critical
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: timothee.cour2 at gmail.com

OSX (and maybe other OS)

dmd -shared -od=/tmp/d09/ test.d
creates ./test.dylib instead of /tmp/d09/test.dylib; and also /tmp/d09/test.o

same with s/dmd/ldmd2/

with s/-shared/-lib/, it correctly creates:
/tmp/d09/test.a

(and no .o)

This is clearly inconsistent.

One option would be to make:
dmd -shared -od=/tmp/d09/ test.d
create all produced stuff in /tmp/d09/

If that's unacceptable, make `dmd -shared -od=/tmp/d09/ test.d` an error,
saying: please provide `-of=`

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