diff --git a/compat/mingw.c b/compat/mingw.c
index ab9b6fa406ca58..b9a6f854927112 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -4185,3 +4185,17 @@ int is_inside_windows_container(void)
 
 	return inside_container;
 }
+
+int file_attr_to_st_mode (DWORD attr, DWORD tag)
+{
+	int fMode = S_IREAD;
+	if ((attr & FILE_ATTRIBUTE_REPARSE_POINT) && tag == IO_REPARSE_TAG_SYMLINK)
+		fMode |= S_IFLNK;
+	else if (attr & FILE_ATTRIBUTE_DIRECTORY)
+		fMode |= S_IFDIR;
+	else
+		fMode |= S_IFREG;
+	if (!(attr & FILE_ATTRIBUTE_READONLY))
+		fMode |= S_IWRITE;
+	return fMode;
+}
diff --git a/compat/win32.h b/compat/win32.h
index 671bcc81f93351..52169ae19f4371 100644
--- a/compat/win32.h
+++ b/compat/win32.h
@@ -6,19 +6,7 @@
 #include <windows.h>
 #endif
 
-static inline int file_attr_to_st_mode (DWORD attr, DWORD tag)
-{
-	int fMode = S_IREAD;
-	if ((attr & FILE_ATTRIBUTE_REPARSE_POINT) && tag == IO_REPARSE_TAG_SYMLINK)
-		fMode |= S_IFLNK;
-	else if (attr & FILE_ATTRIBUTE_DIRECTORY)
-		fMode |= S_IFDIR;
-	else
-		fMode |= S_IFREG;
-	if (!(attr & FILE_ATTRIBUTE_READONLY))
-		fMode |= S_IWRITE;
-	return fMode;
-}
+extern int file_attr_to_st_mode (DWORD attr, DWORD tag);
 
 static inline int get_file_attr(const char *fname, WIN32_FILE_ATTRIBUTE_DATA *fdata)
 {