Makefile.inc1: Fix package-pkg with a non-default LOCALBASE

package-pkg (via make-pkg-package.sh) passes CONFIGURE_ARGS to make when
building ports-mgmt/pkg, which overrides the port's default configure
args that are supposed to set --prefix.  This means that pkg is always
built with the default prefix of /usr/local, which then fails when ports
tries to package it from LOCALBASE.

Work around this by explicitly adding --prefix to CONFIGURE_ARGS.

MFC after:	1 day
Reviewed by:	bapt
Differential Revision:	https://reviews.freebsd.org/D52634

Makefile.inc1

@@ -2049,7 +2049,7 @@ package-pkg: _pkgbootstrap _repodir .PHONY
 	env ${WMAKEENV} SRCDIR=${.CURDIR} PORTSDIR=${PORTSDIR} REVISION=${_REVISION} \
 		PKG_CMD=${PKG_CMD} PKG_VERSION=${PKG_VERSION} REPODIR=${REPODIR} \
 		WSTAGEDIR=${WSTAGEDIR} \
-		OSVERSION="${SRCRELDATE}" \
+		OSVERSION="${SRCRELDATE}" LOCALBASE=${LOCALBASE} \
 		sh ${.CURDIR}/release/scripts/make-pkg-package.sh
 .endif
 .endif

release/scripts/make-pkg-package.sh

@@ -13,7 +13,7 @@ export DISTDIR=/tmp/distfiles
 export WRKDIR=$(make -C ${PORTSDIR}/ports-mgmt/pkg I_DONT_CARE_IF_MY_BUILDS_TARGET_THE_WRONG_RELEASE=YES -V WRKDIR)
 
 make -C ${PORTSDIR}/ports-mgmt/pkg TARGET=${TARGET} TARGET_ARCH=${TARGET_ARCH} \
-	CONFIGURE_ARGS="--host=$(uname -m)-portbld-freebsd${REVISION}" \
+	CONFIGURE_ARGS="--host=$(uname -m)-portbld-freebsd${REVISION} --prefix=${LOCALBASE}" \
 	I_DONT_CARE_IF_MY_BUILDS_TARGET_THE_WRONG_RELEASE=YES \
 	BATCH=YES stage create-manifest