cc: "algchoic.h", line 74: warning 617: Redeclaration of tag "B_AlgorithmInfoType" ignored.
cc: "algchoic.h", line 74: warning 617: Redeclaration of tag "B_AlgorithmInfoType" ignored.

by removing:

struct B_AlgorithmInfoType;

because balgmeth.h already defines that struct tag.
(So does balg.h, but that isn't causing warnings.)