global pointer assignment error

Nios 5.0.1

In global scope:

char test[20]="teststring";

char *cp1 = &test[0]; //this works

char *cp1; cp1 = &test[0]; //but this does not

It all works inside a function, but not in global scope.

Is this part of the anti-global variable campaign, or something I missed in my remedial C class?