Windows DLLs: stifle warnings about symbols being auto imported from DLLs

diff --git a/compiler/main/DriverPipeline.hs b/compiler/main/DriverPipeline.hs
index 042fa04..ed3fc54 100644 (file)
--- a/compiler/main/DriverPipeline.hs
+++ b/compiler/main/DriverPipeline.hs
@@ -1447,6 +1447,12 @@ linkBinary dflags o_files dep_packages = do
                       ]
                      ++ map SysTools.Option (
                         md_c_flags
+
+#ifdef mingw32_TARGET_OS
+                      -- Permit the linker to auto link _symbol to _imp_symbol.
+                     -- This lets us link against DLLs without needing an "import library".
+                     ++ ["-Wl,--enable-auto-import"]
+#endif
                      ++ o_files
                      ++ extra_ld_inputs
                      ++ lib_path_opts