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# $NetBSD: sh-leading-hyphen.mk,v 1.4 2023/01/19 19:55:27 rillig Exp $
#
# Tests for shell commands preceded by a '-', to ignore the exit status of
# the command line.
#
# See also:
# .IGNORE
# depsrc-ignore.mk
# opt-ignore.mk
# TODO: Implementation
all:
-true
-false
# An undefined variable expands to an empty string, without warning.
# This is used in practice for prefixing tool names or for DESTDIR.
# The '-' before 'unknown' is interpreted by make as '.IGNORE' flag.
${UNDEF}-unknown-command 'needed for needshell in compat.c'
# Expanding undefined variables may lead to strange error messages
# when the shell interprets single-character options as commands
# instead.
${UNDEF} --unknown-long-option 'needed for needshell in compat.c'
# Since 2023-01-17, the leading '@', '+' and '-' may contain
# whitespace, for compatibility with GNU make.
- - - @echo 'whitespace in leading part'
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