WIndows: loading objects that refer to DLL symbols

This is a test case from #1288 (closed), distilled into a separate report so I can close #1288 (closed):

test3b.c:

#include <stdio.h>

__declspec(dllexport) void _stdcall test(int arg)
{
   printf("The argument passed was %i\n", arg );
}

test_proxy_5a.c:

__declspec(dllimport) void _stdcall test(int arg);

void test_proxy(int arg)
{
   test(arg);
}

To reproduce:

gcc -c test3b.c
ar -rv test3b.a test3b.o 
c:/mingw/bin/dllwrap --export-all-symbols --output-lib test3b.dll.a -o test3b.dll test3b.a
gcc -c test_proxy_5a.c
ghci -ltest3b test_proxy_5a.o

the error message we get:

GHCi, version 6.9.20080512: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer ... linking ... done.
Loading package base ... linking ... done.
Loading object (static) test_proxy_5a.o ... done
Loading object (dynamic) test3b ... done
ghc.exe:
test_proxy_5a.o: unknown symbol `__imp__test'
final link ... ghc.exe: linking extra libraries/objects failed

I'm not sure to what extent we need to support this, it's possible to link to the DLL by omitting the dllimport declaration.

Trac metadata

Trac field	Value
Version	6.8.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system
Architecture	x86