Index: qemu/bsd/i386/s_ldexpl.c
@@ -2,6 +2,30 @@
 #include <errno.h>
 #include <sysdep.h>
 
+/* 4.x doesnt have isfinite */
+#ifndef isfinite
+#define isfinite __isfinitel
+
+union IEEEl2bits {
+	long double	e;
+	struct {
+		unsigned int	manl	:32;
+		unsigned int	manh	:32;
+		unsigned int	exp	:15;
+		unsigned int	sign	:1;
+		unsigned int	junk	:16;
+	} bits;
+};
+
+static int __isfinitel(long double x)
+{
+	union IEEEl2bits u;
+
+	u.e = x;
+	return (u.bits.exp != 32767);
+}
+#endif
+
 long double __ldexpl(long double x, int expn)
 {
   long double res;
Index: qemu/bsd/i386/s_round.c
@@ -29,6 +29,11 @@
 
 #include <math.h>
 
+/* 4.x doesnt have isfinite */
+#ifndef isfinite
+#define isfinite(x) (!isnan(x) && !isinf(x))
+#endif
+
 double
 round(double x)
 {