Question about convert the binary WAL file

Hi, All

I am new to devolopment of code, so maybe the question is quit simple.

I am trying to write a tools to convert a binary WAL file to a text file.

I want to use ReadRecord to get the record from the file and use RmgrTable[record->xl_rmid].rm_desc to interpreter the content. But the problem is that both of them are local functions and I can not use them directly, should I rewrite a copy of the functions?

BTW. how to use the extern definition in the header file, for my program is put into the contrib folder, and when I try to use some extern definition in the xlog.h, the compiler alway complain it can not find the objects.

Thanks a lot
Clipper

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