[Buildroot] [git commit branch/2020.11.x] package/micropython: define MICROPY_NLR_SETJMP for xtensa

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=3f62d3d43901f96a3e2fb6344d95b19485f2f8bf
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2020.11.x

As suggested on https://github.com/micropython/micropython/issues/6551
define MICROPY_NLR_SETJMP to avoid the xtensa specific implementation
of nlr_push.

Fixes:
- http://autobuild.buildroot.net/results/5fc8669b5c768ccfc02bd20d1159bce7fe43683e

Signed-off-by: Chris Packham <judge.packham at gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at bootlin.com>
(cherry picked from commit 9fd9f4e6752fd0931fa5cc287bf0e6cd598c36a1)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 package/micropython/micropython.mk | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/package/micropython/micropython.mk b/package/micropython/micropython.mk
index a126b3eeae..010ac35e8c 100644
--- a/package/micropython/micropython.mk
+++ b/package/micropython/micropython.mk
@@ -21,6 +21,11 @@ ifeq ($(BR2_i386)$(BR2_x86_64)$(BR2_arm)$(BR2_armeb),)
 MICROPYTHON_CFLAGS = -DMICROPY_GCREGS_SETJMP=1
 endif
 
+# xtensa has problems with nlr_push, use setjmp based implementation instead
+ifeq ($(BR2_xtensa),y)
+MICROPYTHON_CFLAGS = -DMICROPY_NLR_SETJMP=1
+endif
+
 # When building from a tarball we don't have some of the dependencies that are in
 # the git repository as submodules
 MICROPYTHON_MAKE_OPTS += \