There is a bug in the iproute2 package that is downloaded during the make process. This causes an error that halts the making process. Edit the following line in the paretonormal.c file.
On line 54, replace:
    double table[TABLESIZE];
by
    double table[TABLESIZE+1];

After saving the paretonormal.c file and exiting the editor, we'll have to restart the make process. Everything that has been build already will be skipped, and the process will resume at the paretonormal.c file.