xref: /freebsd-src/contrib/bmake/unit-tests/jobs-empty-commands.mk (revision dba7b0ef928af88caa38728a73657b837aeeac93)
1*dba7b0efSSimon J. Gerraty# $NetBSD: jobs-empty-commands.mk,v 1.2 2021/01/30 12:46:38 rillig Exp $
2*dba7b0efSSimon J. Gerraty#
3*dba7b0efSSimon J. Gerraty# In jobs mode, the shell commands for creating a target are written to a
4*dba7b0efSSimon J. Gerraty# temporary file first, which is then run by the shell.  In chains of
5*dba7b0efSSimon J. Gerraty# dependencies, these files would end up empty.  Since job.c 1.399 from
6*dba7b0efSSimon J. Gerraty# 2021-01-29, these empty files are no longer created.
7*dba7b0efSSimon J. Gerraty#
8*dba7b0efSSimon J. Gerraty# https://mail-index.netbsd.org/current-users/2021/01/26/msg040215.html
9*dba7b0efSSimon J. Gerraty
10*dba7b0efSSimon J. Gerraty.MAKEFLAGS: -j1
11*dba7b0efSSimon J. Gerraty#.MAKEFLAGS: -dn		# to see the created temporary files
12*dba7b0efSSimon J. Gerraty
13*dba7b0efSSimon J. Gerratyall: .PHONY step-1
14*dba7b0efSSimon J. Gerraty.for i i_plus_1 in ${:U:range=100:@i@$i $i@:[2..199]}
15*dba7b0efSSimon J. Gerratystep-$i: .PHONY step-${i_plus_1}
16*dba7b0efSSimon J. Gerraty.endfor
17*dba7b0efSSimon J. Gerratystep-100: .PHONY
18*dba7b0efSSimon J. Gerraty	@echo 'action'
19