CVS commit: src/usr.bin/make

["Roland Illig" <rillig%netbsd.org@localhost>]

Module Name:    src
Committed By:   rillig
Date:           Fri Sep  4 17:59:37 UTC 2020

Modified Files:
        src/usr.bin/make: lst.c lst.h parse.c

Log Message:
make(1): use a stack instead of a list for the nested include path

By using a Stack instead of a Lst, the available API is reduced to the
very few functions that are really needed for a stack.  This prevents
accidental misuse (such as confusing Lst_Append with Lst_Prepend) and
clearly communicates what the expected behavior is.

A stack also needs fewer calls to bmake_malloc than an equally-sized
list, and the memory is contiguous.  For the nested include path, all
this doesn't matter, but the type is so generic that it may be used in
other places as well.


To generate a diff of this commit:
cvs rdiff -u -r1.60 -r1.61 src/usr.bin/make/lst.c src/usr.bin/make/lst.h
cvs rdiff -u -r1.275 -r1.276 src/usr.bin/make/parse.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.