diff --git a/Contrib/Library/RegTool/RegTool.cpp b/Contrib/Library/RegTool/RegTool.cpp
index 7de36d4e..136eb2b8 100644
--- a/Contrib/Library/RegTool/RegTool.cpp
+++ b/Contrib/Library/RegTool/RegTool.cpp
@@ -6,6 +6,10 @@
 
 #define STR_SIZE 1024
 
+#if defined(_MSC_VER) && _MSC_VER-0 >= 1600 && _MSC_VER-0 <= 1800 // MSVC complains about math stuff we are not even using (bug #1159)
+EXTERN_C int _fltused = 0;
+EXTERN_C double _hypot(double x, double y) { return 0.0; }
+#endif
 
 /*
 All A/W functions need this ugly hack so we can call them in template functions.
diff --git a/Contrib/MakeLangId/MakeLangId.cpp b/Contrib/MakeLangId/MakeLangId.cpp
index 69453211..4b426f01 100644
--- a/Contrib/MakeLangId/MakeLangId.cpp
+++ b/Contrib/MakeLangId/MakeLangId.cpp
@@ -28,6 +28,11 @@ https://wayback.archive.org/web/20021221200122/http://msdn.microsoft.com/library
 #include <commctrl.h>
 #include "resource.h"
 
+#if defined(_MSC_VER) && _MSC_VER-0 >= 1600 && _MSC_VER-0 <= 1800 // MSVC complains about math stuff we are not even using (bug #1159)
+EXTERN_C int _fltused = 0;
+EXTERN_C double _hypot(double x, double y) { return 0.0; }
+#endif
+
 #ifndef LOCALE_SNAME
 #define LOCALE_SNAME 0x005C
 #endif