add numerical recipes library

lib/nr/k_and_r/other/bccbug.c

@@ -0,0 +1,10 @@
+/* The following function is recommended by Borland Technical Support to
+   "fix" the error "Floating Point Formats Not Linked".  To use this file,
+   compile it along with your own files on the compiler command line. You
+   do not need to call it, just compile it along with your files.         */
+
+void LinkFloat(void)
+{
+  float a=0, *b=&a;
+  a=*b;
+}