By default GHC API looks for .dyn_o but only creates .o

See the example program for #7918 (closed) . If we change

  dynFlags <- getSessionDynFlags
  void $ setSessionDynFlags (doDynamicToo dynFlags)

to

  dynFlags <- getSessionDynFlags
  void $ setSessionDynFlags dynFlags

so that we get the default DynFlags, the program fails.

The program loads two modules A and B, and tries to typecheck B. B uses a quasi-quoter defined in A. With the default DynFlags it will fail with

    cannot find normal object file ‛./T7918A.dyn_o’
    while linking an interpreted expression

i.e., it is looking for the .dyn_o file but only creates the .o file.

Trac metadata

Trac field	Value
Version	7.6.3
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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