this patch to math.h

The lines defining INFINITY contain exactly one <TAB> right after INFINITY, the line defining NAN contains two <TAB> right after NAN.

diff -ru mingw-runtime-3.10.old/include/math.h mingw-runtime-3.10/include/math.h
--- mingw-runtime-3.10.old/include/math.h       2006-06-25 12:43:52.000000000 +0200
+++ mingw-runtime-3.10/include/math.h   2006-07-24 12:56:17.000000000 +0200
@@ -295,9 +295,9 @@
 #define INFINITY       __builtin_inf()
 #define NAN            __builtin_nan("")
 #else
-#extern const float __INFF;
+extern const float __INFF;
 #define HUGE_VALF __INFF
-#extern const long double  __INFL;
+extern const long double  __INFL;
 #define HUGE_VALL __INFL
 #define INFINITY       HUGE_VALF
 extern const double __QNAN;