MinGW: add mkdir adapter (#2018)

On Windows, mkdir only takes one argument.
compat/mswindows.h has an adapter, add it to
compat/mingw.h as well.

Solves error:

```
UFSSwapDir.cc:617:26: error: too many arguments
    to function 'int mkdir(const char*)'
mingw/include/io.h:282:15: note: declared here
    int __cdecl mkdir (const char *);
```

diff --git a/compat/os/mingw.h b/compat/os/mingw.h
index fa904a9ec25b0d3e3f6aa1141c29b6eae3a2c616..5bc721b8af89cc9cf5fcf3cbe95a0c42d99841a6 100644 (file)
--- a/compat/os/mingw.h
+++ b/compat/os/mingw.h
@@ -46,5 +46,7 @@ fsync(int fd)
 }
 #endif
 
+#define mkdir(p,F) mkdir((p))
+
 #endif /* _SQUID_MINGW_*/
 #endif /* SQUID_COMPAT_OS_MINGW_H */