Linking libstdc++ is broken on Windows

Foo.hs:

main = return ()

file.cpp:

#include <iostream>
extern "C" { void foo() { std::cout << "Hello\n"; } }

Building with:

ghc -o tst Foo.hs file.cpp -lstdc++

and then running tst.exe produces this:

tst.exe: error while loading shared libraries: libstdc++-6.dll:
cannot open shared object file: No such file or directory

Adding -optl-static makes the error go away. GHC doesn't seem to ship libstdc++-6.dll but does ship libstdc++-6.dll.a which might cause the problem.

Trac metadata

Trac field	Value
Version	7.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
Test case
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