41 lines
1.2 KiB
Makefile
41 lines
1.2 KiB
Makefile
#
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# $FreeBSD$
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#
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# Generic mechanism to deal with WITH and WITHOUT options and turn them into MK_ options.
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#
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#
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# For each option FOO that defaults to YES, MK_FOO is set to yes, unless WITHOUT_FOO
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# is defined, in which case it is set to no. If both WITH_FOO and WITHOUT_FOO are
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# defined, WITHOUT_FOO wins. The list of default yes options is contained in the
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# __DEFAULT_YES_OPTIONS variable, which is undefined after expansion.
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#
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# For each option FOO that defaults to NO, MK_FOO is set to no, unless WITH_FOO
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# is defined, in which case it is set to yes. If both WITH_FOO and WITHOUT_FOO are
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# defined, WITH_FOO wins. The list of default no options is contained in the
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# __DEFAULT_NO_OPTIONS variable, which is undefined after expansion.
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#
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.for var in ${__DEFAULT_YES_OPTIONS}
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.if !defined(MK_${var})
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.if defined(WITHOUT_${var}) # IF both WITH and WITHOUT defined, WITHOUT wins.
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MK_${var}:= no
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.else
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MK_${var}:= yes
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.endif
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.endif
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.endfor
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.undef __DEFAULT_YES_OPTIONS
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#
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# MK_* options which default to "no".
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#
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.for var in ${__DEFAULT_NO_OPTIONS}
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.if !defined(MK_${var})
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.if defined(WITH_${var}) # If both WITH and WITHOUT defined, WITH wins
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MK_${var}:= yes
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.else
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MK_${var}:= no
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.endif
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.endif
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.endfor
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.undef __DEFAULT_NO_OPTIONS
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