Allow powerpc to compile this file.

Index: libpcc/cxmuldiv.c
--- libpcc/cxmuldiv.c.orig
+++ libpcc/cxmuldiv.c
@@ -402,6 +402,23 @@ __muldc3(double fa, double fb, double fc, double fd)
 	return ux.f + 1.0iF * uy.f;
 }
 
+#if defined(mach_powerpc)
+/* Long double is double. */
+
+long double _Complex
+__divxc3(long double ax, long double bx, long double cx, long double dx)
+{
+	return __divdc3(ax, bx, cx, dx);
+}
+
+long double _Complex
+__mulxc3(long double fa, long double fb, long double fc, long double fd)
+{
+	return __mulxc3(fa, fb, fc, fd);
+}
+
+#else
+
 /*
  * Long double functions.
  */
@@ -618,5 +635,7 @@ __mulxc3(long double fa, long double fb, long double f
 	}
 	return ux.f + 1.0iF * uy.f;
 }
+
+#endif
 
 #endif
