Index: Mk/bsd.options.mk
===================================================================
--- Mk/bsd.options.mk
+++ Mk/bsd.options.mk
@@ -173,6 +173,11 @@
 OPTIONSMKINCLUDED=	bsd.options.mk
 
 OPTIONS_NAME?=	${PKGORIGIN:S/\//_/}
+# If there is a FLAVOR and it is not the default one, append it to OPTIONS_NAME
+# so that the options can be different than the default flavor.
+.if !empty(FLAVOR) && ${FLAVOR} != ${FLAVORS:[1]}
+OPTIONS_NAME:=	${OPTIONS_NAME}@${FLAVOR}
+.endif
 OPTIONS_FILE?=	${PORT_DBDIR}/${OPTIONS_NAME}/options
 
 _OPTIONS_FLAGS=	ALL_TARGET BROKEN CATEGORIES CFLAGS CONFIGURE_ENV CONFLICTS \
Index: Mk/bsd.port.mk
===================================================================
--- Mk/bsd.port.mk
+++ Mk/bsd.port.mk
@@ -1089,6 +1089,20 @@
 # Do not leak flavors to childs make
 .MAKEOVERRIDES:=	${MAKEOVERRIDES:NFLAVOR=*}
 
+.if !empty(FLAVOR)
+.for c in PKGNAMEPREFIX PKGNAMESUFFIX
+.if define(${FLAVOR}_${c})
+${c}=	${${FLAVOR}_${c}}
+.endif
+.endfor
+
+.for c in CONFLICTS CONFLICTS_BUILD CONFLICTS_INSTALL
+.if define(${FLAVOR}_${c})
+${c}+=	${${FLAVOR}_${c}}
+.endif
+.endfor
+.endif # defined(${FLAVOR})
+
 .if defined(CROSS_TOOLCHAIN)
 .if !defined(CROSS_SYSROOT)
 IGNORE=	CROSS_SYSROOT should be defined