It may be a reasonable feature request but it also may not be that
hard to implement with existing functionality. Here's one approach:
% cat makefile
SHELL := $(abspath shx)
.PHONY: job
job: job1 job2
.PHONY: job1
job1:
sleep 3
exit 1
.PHONY: job2
job2:
while echo ok; do
$^ and $+ are defined twice in the documentation
(http://www.gnu.org/software/make/manual/make.html). The second time, it does
not mention the exclusion of order-only dependencies, implying they are
included.
$^
The names of all the prerequisites, with spaces between them. For prerequisites
