37 lines
1.3 KiB
Makefile
37 lines
1.3 KiB
Makefile
# $NetBSD: varname-dot-makeflags.mk,v 1.7 2023/02/25 19:24:07 rillig Exp $
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#
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# Tests for the special .MAKEFLAGS variable, which collects almost all
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# command line arguments and passes them on to any child processes via
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# the environment variable MAKEFLAGS (without leading '.').
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#
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# See also:
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# varname-dot-makeoverrides.mk
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.info MAKEFLAGS=<${MAKEFLAGS:Uundefined}>
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.info .MAKEFLAGS=<${.MAKEFLAGS}>
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.info .MAKEOVERRIDES=<${.MAKEOVERRIDES:Uundefined}>
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# Append an option with argument, a plain option and a variable assignment.
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.MAKEFLAGS: -DVARNAME -r VAR=value
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# expect+1: MAKEFLAGS=<undefined>
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.info MAKEFLAGS=<${MAKEFLAGS:Uundefined}>
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# expect+1: .MAKEFLAGS=< -r -k -D VARNAME -r>
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.info .MAKEFLAGS=<${.MAKEFLAGS}>
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# expect+1: .MAKEOVERRIDES=< VAR>
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.info .MAKEOVERRIDES=<${.MAKEOVERRIDES}>
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# The environment variable 'MAKEFLAGS' is not available to child processes
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# when parsing the makefiles. This is different from exported variables,
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# which are already available during parse time.
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.if ${:!echo "\${MAKEFLAGS-undef}"!} != "undef"
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. error
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.endif
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# After parsing, the environment variable 'MAKEFLAGS' is set based on the
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# special variables '.MAKEFLAGS' and '.MAKEOVERRIDES'.
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runtime:
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@echo '$@: MAKEFLAGS=<'${MAKEFLAGS:Q}'>'
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@echo '$@: .MAKEFLAGS=<'${.MAKEFLAGS:Q}'>'
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@echo '$@: .MAKEOVERRIDES=<'${.MAKEOVERRIDES:Q}'>'
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