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--- ruby-2.0.0-p247.orig/missing/isinf.c 2011-05-15 13:55:52.000000000 +0200 +++ ruby-2.0.0-p247/missing/isinf.c 2013-10-24 09:03:04.000000000 +0200 @@ -5,6 +5,8 @@ #define _IEEE 1 #include <nan.h> +#undef isinf + int isinf(double n) {