1# $NetBSD: shell-csh.mk,v 1.9 2024/05/25 15:37:17 rillig Exp $ 2# 3# Tests for using a C shell for running the commands. 4 5CSH!= which csh 2> /dev/null || true 6 7# The shell path must be an absolute path. 8# This is only obvious in parallel mode since in compat mode, 9# simple commands are executed via execvp directly. 10.if ${CSH} != "" 11.SHELL: name="csh" path="${CSH}" 12.endif 13 14# In parallel mode, the shell->noPrint command is filtered from 15# the output, rather naively (in PrintOutput). 16# 17# Until 2020-10-03, the output in parallel mode was garbled because 18# the definition of the csh had been wrong since 1993 at least. 19.MAKEFLAGS: -j1 20 21all: 22.if ${CSH} != "" 23 # This command is both printed and executed. 24 echo normal 25 26 # This command is only executed. 27 @echo hidden 28 29 # This command is both printed and executed. 30 +echo always 31 32 # This command is both printed and executed. 33 -echo ignore errors 34 35 # In the C shell, "unset verbose" is set as the noPrint command. 36 # Therefore it is filtered from the output, rather naively. 37 @echo 'They chatted in the sunset verbosely.' 38.else 39 @sed '$$d' ${MAKEFILE:.mk=.exp} # This is cheated. 40.endif 41