1# 2# $FreeBSD$ 3# 4# Generic mechanism to deal with WITH and WITHOUT options and turn them into MK_ options. 5# 6# 7# For each option FOO that defaults to YES, MK_FOO is set to yes, unless WITHOUT_FOO 8# is defined, in which case it is set to no. If both WITH_FOO and WITHOUT_FOO are 9# defined, WITHOUT_FOO wins. The list of default yes options is contained in the 10# __DEFAULT_YES_OPTIONS variable, which is undefined after expansion. 11# 12# For each option FOO that defaults to NO, MK_FOO is set to no, unless WITH_FOO 13# is defined, in which case it is set to yes. If both WITH_FOO and WITHOUT_FOO are 14# defined, WITH_FOO wins. The list of default no options is contained in the 15# __DEFAULT_NO_OPTIONS variable, which is undefined after expansion. 16# 17.for var in ${__DEFAULT_YES_OPTIONS} 18.if !defined(MK_${var}) 19.if defined(WITHOUT_${var}) # IF both WITH and WITHOUT defined, WITHOUT wins. 20MK_${var}:= no 21.else 22MK_${var}:= yes 23.endif 24.endif 25.endfor 26.undef __DEFAULT_YES_OPTIONS 27 28# 29# MK_* options which default to "no". 30# 31.for var in ${__DEFAULT_NO_OPTIONS} 32.if !defined(MK_${var}) 33.if defined(WITH_${var}) # If both WITH and WITHOUT defined, WITH wins 34MK_${var}:= yes 35.else 36MK_${var}:= no 37.endif 38.endif 39.endfor 40.undef __DEFAULT_NO_OPTIONS 41