+/* On MIPS IRIX machines, LDBL_MIN_EXP is -1021, but the smallest reliable
+ exponent for 'long double' is -964. For exponents below that, the
+ precision may be truncated to the precision used for 'double'. */
+#ifdef __sgi
+# define MIN_NORMAL_EXP (LDBL_MIN_EXP + 57)
+# define MIN_SUBNORMAL_EXP MIN_NORMAL_EXP
+#else
+# define MIN_NORMAL_EXP LDBL_MIN_EXP
+# define MIN_SUBNORMAL_EXP (LDBL_MIN_EXP - 100)
+#endif
+