Bug 17403 – -main switch doesn't run correctly in unittest builds when linking separately

foo.d: unittest { assert(false); } $ dmd -main -unittest foo.d $ ./foo [email protected](1): unittest failure # fails as expected $ dmd -offoo.o -c -main -unittest foo.d $ dmd foo.o $ ./foo # no error $ If I change foo.d to include a main function manually: unittest { assert(false); } void main() { import core.runtime: Runtime; Runtime.moduleUnitTester; } Then the 2nd example above fails as expected. $ dmd -offoo.o -c -unittest foo.d $ dmd foo.o $ ./foo [email protected](1): unittest failure

I think the invocation is incorrect - you need to specify -main when linking, not compiling: $ dmd -c -unittest foo.d $ dmd -main foo.o $ ./foo [email protected](1): unittest failure

That's... not what I expected. Thanks for the clarification.