diff --git a/test/config_info.cpp b/test/config_info.cpp
index 1fcff227..ce001957 100644
--- a/test/config_info.cpp
+++ b/test/config_info.cpp
@@ -177,6 +177,8 @@ void print_compiler_macros()
   PRINT_MACRO(__sparc__);
   PRINT_MACRO(__powerpc__);
   PRINT_MACRO(__hppa);
+  PRINT_MACRO(__CYGWIN__);
+  PRINT_MACRO(__MINGW32__);
   // HP aCC:
   PRINT_MACRO(__HP_aCC);
   PRINT_MACRO(_HPACC_);