Hi all, I'm trying to compile a couple of file separately. The main purpose for that is that we're checking student-submitted exercises, and we want to compile them with -XSafe. The test suite doesn't require -XSafe. There are basically three files: * Exercise.hs -- uploaded by the student * Exercise_Interface.hs -- imports the 'Exercise' module and creates new bindings with appropriate types * Exercise_Test.hs -- imports the interface module and contains the test code and 'main' Here's how I try to compile these files: TEMP="$(mktemp -d -p /tmp ghcXXX)" ghc -c -XSafe -outputdir "$TEMP" Exercise.hs ghc -c -outputdir "$TEMP" -i"$TEMP" Exercise_Interface.hs ghc -o "$TEMP/runner" -outputdir "$TEMP" -i"$TEMP" Exercise_Test.hs This works except for the last step: GHC complains that it can't find the module 'Exercise_Interface'. Upon closer inspection with '-v', it turns out that it's actually looking for the .hs file, which I find odd. If I add '-c' to the last invocation, it works, but I don't get an executable. What am I doing wrong? Cheers Lars