diff --git a/Mk/defaults.mk b/Mk/defaults.mk
index 0f6f3b1c3..815b7c406 100644
--- a/Mk/defaults.mk
+++ b/Mk/defaults.mk
@@ -26,18 +26,41 @@
 LOCALBASE?=	/usr/local
 PAGER?=		less
 
-OPENSSL?=	${LOCALBASE}/bin/openssl
-
-_FLAVOUR!=	if [ -f ${OPENSSL} ]; then ${OPENSSL} version; fi
-FLAVOUR?=	${_FLAVOUR:[1]}
-
 PKG!=		which pkg || echo true
 GIT!=		which git || echo true
-ARCH!=		uname -p
+
+_PLUGIN_ARCH!=	uname -p
+PLUGIN_ARCH?=	${_PLUGIN_ARCH}
+
+OPENSSL?=	${LOCALBASE}/bin/openssl
+
+.if ! defined(PLUGIN_FLAVOUR)
+.if exists(${OPENSSL})
+_PLUGIN_FLAVOUR!=	${OPENSSL} version
+PLUGIN_FLAVOUR?=	${_PLUGIN_FLAVOUR:[1]}
+.else
+.warning "Detected 'Base' flavour is not currently supported"
+PLUGIN_FLAVOUR?=	Base
+.endif
+.endif
+
+PHPBIN=		${LOCALBASE}/bin/php
+
+.if exists(${PHPBIN})
+_PLUGIN_PHP!=	${PHPBIN} -v
+PLUGIN_PHP?=	${_PLUGIN_PHP:[2]:S/./ /g:[1..2]:tW:S/ //}
+.endif
+
+PYTHONLINK=	${LOCALBASE}/bin/python3
+
+.if exists(${PYTHONLINK})
+_PLUGIN_PYTHON!=${PYTHONLINK} -V
+PLUGIN_PYTHON?=	${_PLUGIN_PYTHON:[2]:S/./ /g:[1..2]:tW:S/ //}
+.endif
 
 PLUGIN_ABI?=	20.1
-PLUGIN_ARCH?=	${ARCH}
-PLUGIN_FLAVOUR?=${FLAVOUR}
+PLUGIN_PHP?=	72
+PLUGIN_PYTHON?=	37
 
 REPLACEMENTS=	PLUGIN_ABI \
 		PLUGIN_ARCH \
diff --git a/Mk/plugins.mk b/Mk/plugins.mk
index bb6942c55..6722b8727 100644
--- a/Mk/plugins.mk
+++ b/Mk/plugins.mk
@@ -27,10 +27,6 @@ all: check
 
 .include "defaults.mk"
 
-PLUGIN_ARCH?=		${ARCH}
-PLUGIN_PHP?=		72
-PLUGIN_PYTHON?=		37
-
 PLUGIN_DESC=		pkg-descr
 PLUGIN_SCRIPTS=		+PRE_INSTALL +POST_INSTALL \
 			+PRE_DEINSTALL +POST_DEINSTALL
@@ -236,10 +232,10 @@ package: check
 	@if ! ${PKG} info ${DEP} > /dev/null; then ${PKG} install -yA ${DEP}; fi
 .endfor
 	@echo -n ">>> Generating metadata for ${PLUGIN_PKGNAME}-${PLUGIN_PKGVERSION}..."
-	@${MAKE} DESTDIR=${WRKSRC} FLAVOUR=${FLAVOUR} metadata
+	@${MAKE} DESTDIR=${WRKSRC} metadata
 	@echo " done"
 	@echo -n ">>> Staging files for ${PLUGIN_PKGNAME}-${PLUGIN_PKGVERSION}..."
-	@${MAKE} DESTDIR=${WRKSRC} FLAVOUR=${FLAVOUR} install
+	@${MAKE} DESTDIR=${WRKSRC} install
 	@echo " done"
 	@echo ">>> Packaging files for ${PLUGIN_PKGNAME}-${PLUGIN_PKGVERSION}:"
 	@${PKG} create -v -m ${WRKSRC} -r ${WRKSRC} \