First of all, thank you for listening to this mail. As I mentioned in the title, I got a undefined reference in compiling time. The reason that I wonder is that I surely add header file for the function.
In more detail, I want to use TransactionIdEquals() function in freelist.c file. Then, I included a header file, "access/xact.h" for the function. However, in make command, compiler send implicit declaration of function warning and then undefined reference at linking time. How could I overcome this problem? :(
