(x11/py-qwt-qt5) DESTDIR related trial-and-error still fails

py-qwt-qt5/Makefile

@@ -18,9 +18,16 @@ BUILD_DEPENDS+=	qt5-qtbase-[0-9]*:../../x11/qt5-qtbase
 WRKSRC=		${WRKDIR}/PyQt-Qwt-pyqt-qwt-${VERSION}
 
 MAKE_ENV+=	PATH=${PATH}:${PREFIX}/qt5/bin
-MAKE_ENV+=	INSTALL_ROOT=${DESTDIR}
+#AKE_ENV+=	INSTALL_ROOT=${DESTDIR}
 USE_LANGUAGES=	c++
 
+SUBST_CLASSES+=			installed.txt
+SUBST_MESSAGE.installed.txt=	Remove one extra \${DESTDIR} from list
+SUBST_FILES.installed.txt=	installed.txt
+SUBST_STAGE.installed.txt=	post-configure
+SUBST_SED.installed.txt=	-e '/^\/usr/s,^,${DESTDIR},'
+#SUBST_SED.installed.txt=	-e 's,^${DESTDIR},,'
+
 do-configure:
 	(cd ${WRKSRC}; \
 	QT_SELECT=qt5 \
@@ -31,7 +38,8 @@ do-configure:
 	--qwt-lib=qwt \
 	--sip=${PREFIX}/bin/sip${PYVERSSUFFIX} \
 	--qmake=${PREFIX}/qt5/bin/qmake \
-  	--pyqt-sipdir=${PREFIX}/share/sip${PYVERSSUFFIX}/PyQt5 \
+	--pyqt-sipdir=${PREFIX}/share/sip${PYVERSSUFFIX}/PyQt5 \
+	--destdir=${DESTDIR}${PREFIX}/${PYSITELIB}/PyQt5 \
 	--verbose \
 	)
 

py-qwt-qt5/TODO

@@ -1,5 +1,15 @@
+-- current problem  --
+
+===> Installing for py37-qwt-qt5-1.02.00
+=> Generating pre-install file lists
+cd Qwt/ && ( test -e Makefile || /usr/pkg/qt5/bin/qmake -o Makefile /tmp/wip/py-qwt-qt5/work/PyQt-Qwt-pyqt-qwt-1.02.00/Qwt/Qwt.pro ) && /usr/bin/make -f Makefile install
+/usr/pkg/qt5/bin/qmake -install qinstall /tmp/wip/py-qwt-qt5/work/PyQt-Qwt-pyqt-qwt-1.02.00/Qwt/Qwt.so /tmp/wip/py-qwt-qt5/work/.destdir/usr/pkg/lib/python3.7/site-packages/PyQt5/Qwt.so
+mkdir: /usr/pkg/share/sip3.7/PyQt5/Qwt: Permission denied
+*** Error code 1
+
+
+-- Previous Problem --
 
-- current problem  --
 
 /usr/pkg/bin/python3.7 mk_distinfo.py /tmp/wip/py-qwt-qt5/work/.destdir/usr/pkg/lib/python3.7/site-packages/Qwt-6.1.2.dist-info installed.txt
 Traceback (most recent call last):