Orphaned function defs in header.h

[heasm66]

When I compiled the latest from the master-branch, I get these warnings (everything compiles, so it's just for code maintenance):

Function definition for 'add_to_checksum' not found.
Function definition for 'check_globals' not found.
Function definition for 'halloc' not found.
Function definition for 'hfree' not found.
Function definition for 'object_provides' not found.

halloc and hfree are probable definitions hidden in other dependencies when activating the PC_QUICKC definition, but the other three seem like orphans...

[erkyrath]

All the mentions of halloc/hfree are under #ifdef PC_QUICKC. I don't see why the compiler would warn about them if that symbol is not set.

The others can go away, I agree.

[erkyrath]

I suppose halloc()/hfree() are declared in some ancient QuickC header, but I don't know what it is.

If you figure it out, the #include can go into memory.c, and then maybe we don't need to declare those in header.h.