CVS commit: src/usr.bin/make

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

Module Name:    src
Committed By:   rillig
Date:           Fri Jan  7 08:20:00 UTC 2022

Modified Files:
        src/usr.bin/make: parse.c
        src/usr.bin/make/unit-tests: directive-include.mk

Log Message:
make: fix null pointer when including empty file (since 2022-01-01)

Calling malloc(0) may return a null pointer, but callers of bmake_malloc
do not expect that.

Reported by Chris Pinnock, found by cross-compiling NetBSD on OpenBSD,
where tools/groff creates Makefile.dep files of size 0.


To generate a diff of this commit:
cvs rdiff -u -r1.619 -r1.620 src/usr.bin/make/parse.c
cvs rdiff -u -r1.9 -r1.10 src/usr.bin/make/unit-tests/directive-include.mk

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