mingw: Add formatLastError as wrapper function for FormatMessage

1 files changed, 7 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index e7ebb816..fe802af4 100644
--- a/src/util.h
+++ b/src/util.h
@@ -855,6 +855,13 @@ bool tlsHostnameMatch(const std::string& pattern, const std::string& hostname);
 TLSVersion toTLSVersion(const std::string& ver);
 #endif // ENABLE_SSL
 
+#ifdef __MINGW32__
+// Formats error message for error code errNum, which is the return
+// value of GetLastError().  On error, this function returns empty
+// string.
+std::string formatLastError(int errNum);
+#endif // __MINGW32__
+
 } // namespace util
 
 } // namespace aria2