[PATCH] tests/Makefile.include: export PYTHON for check-block.sh

[Vladimir Sementsov-Ogievskiy]

check-block.sh called by make check-block rely on PYTHON variable being
set.

Fixes: f203080bbd9f9e5b31041b1f2afcd6040c5aaec5
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
---

Hi! As Peter reported, build fails on platforms where python3 is not
/usr/bin/python3.. This patch should help. At least it works for me if
I move /usr/bin/python3 to another location and configure it with
--python=. And doesn't work without the patch.
Don't know how the thing seemed to work for me before :\

 tests/Makefile.include | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/Makefile.include b/tests/Makefile.include
index 3a0524ce74..ceaf3f0d6e 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -138,6 +138,7 @@ check:
 ifeq ($(CONFIG_TOOLS)$(CONFIG_POSIX),yy)
 QEMU_IOTESTS_HELPERS-$(CONFIG_LINUX) = 
tests/qemu-iotests/socket_scm_helper$(EXESUF)
 check: check-block
+export PYTHON
 check-block: $(SRC_PATH)/tests/check-block.sh qemu-img$(EXESUF) \
                qemu-io$(EXESUF) qemu-nbd$(EXESUF) $(QEMU_IOTESTS_HELPERS-y) \
                $(filter qemu-system-%, $(ninja-targets))
-- 
2.29.2