+diff -urN openssh-8.1p1.orig/regress/Makefile openssh-8.1p1/regress/Makefile
+--- openssh-8.1p1.orig/regress/Makefile 2019-10-17 20:31:40.094507942 +0200
++++ openssh-8.1p1/regress/Makefile 2019-10-17 20:30:38.567986269 +0200
+@@ -225,8 +225,14 @@
+ t-exec-interop: ${INTEROP_TESTS:=.sh}
+ @if [ "x$?" = "x" ]; then exit 0; fi; \
+ for TEST in ""$?; do \
+- echo "run test $${TEST}" ... 1>&2; \
+- (env SUDO="${SUDO}" TEST_ENV=${TEST_ENV} ${TEST_SHELL} ${.CURDIR}/test-exec.sh ${.OBJDIR} ${.CURDIR}/$${TEST}) || exit $$?; \
++ skip=no; \
++ for t in ""$${SKIP_LTESTS}; do \
++ if [ "x$${t}.sh" = "x$${TEST}" ]; then skip=yes; fi; \
++ done; \
++ if [ "x$${skip}" = "xno" ]; then \
++ echo "run test $${TEST}" ... 1>&2; \
++ (env SUDO="${SUDO}" TEST_ENV=${TEST_ENV} ${TEST_SHELL} ${.CURDIR}/test-exec.sh ${.OBJDIR} ${.CURDIR}/$${TEST}) || exit $$?; \
++ fi; \
+ done
+
+ t-extra: ${EXTRA_TESTS:=.sh}