+#define acoshf(f) ((float) acosh(f))
+#define asinhf(f) ((float) asinh(f))
+#define atanhf(f) ((float) atanh(f))
+#endif
+
+#if defined(_MSC_VER) && (_MSC_VER < 1800) /* Not req'd on VS2013 and above */
+static inline float truncf(float x) { return x < 0.0f ? ceilf(x) : floorf(x); }
+static inline float exp2f(float x) { return powf(2.0f, x); }
+static inline float log2f(float x) { return logf(x) * 1.442695041f; }
+static inline float asinhf(float x) { return logf(x + sqrtf(x * x + 1.0f)); }
+static inline float acoshf(float x) { return logf(x + sqrtf(x * x - 1.0f)); }
+static inline float atanhf(float x) { return (logf(1.0f + x) - logf(1.0f - x)) / 2.0f; }
+static inline int isblank(int ch) { return ch == ' ' || ch == '\t'; }
+#define strtoll(p, e, b) _strtoi64(p, e, b)
+#define strcasecmp(s1, s2) _stricmp(s1, s2)