1# $NetBSD: opt-debug-jobs.mk,v 1.5 2020/11/12 21:54:52 rillig Exp $ 2# 3# Tests for the -dj command line option, which adds debug logging about 4# running jobs in multiple shells. 5 6.MAKEFLAGS: -dj 7 8# Run in parallel mode since the debug logging is more interesting there 9# than in compat mode. 10.MAKEFLAGS: -j1 11 12all: 13 # Only the actual command is logged. 14 # To see the evaluation of the variable expressions, use -dv. 15 : ${:Uexpanded} expression 16 17 # Undefined variables expand to empty strings. 18 # Multiple spaces are preserved in the command, as they might be 19 # significant. 20 : ${UNDEF} variable 21 22 # In the debug output, single quotes are not escaped, even though 23 # the whole command is enclosed in single quotes as well. 24 # This allows to copy and paste the whole command, without having 25 # to unescape anything. 26 : 'single' and "double" quotes 27 28 # Avoid a race condition in the debug output. Without sleeping, 29 # it is not guaranteed that the two lines "exited/stopped" and 30 # "JobFinish" are output earlier than the stdout of the actual shell 31 # commands. The '@' prefix avoids that this final command gets into 32 # another race condition with the "exited/stopped" line. 33 @sleep 1 34