There are a few places in Tcl's documentation where
the routines ckalloc() and ckfree() are mentioned.
However, these synonyms for Tcl_Alloc() and
Tcl_Free() are not themselves documented anywhere.
I propose to document them in the Tcl_Alloc man
page as deprecated synonyms [*], then to update all
references from ckalloc -> Tcl_Alloc and
ckfree -> Tcl_Free.
Patch coming soon.
[*] following the example of panic() and Tcl_Panic().