Merge latest 4.0.x fixes into master

3 files changed, 10 insertions, 0 deletions

diff --git a/py/circuitpy_defns.mk b/py/circuitpy_defns.mk
index 722f06e93..28d90dfea 100644
--- a/py/circuitpy_defns.mk
+++ b/py/circuitpy_defns.mk
@@ -366,3 +366,8 @@ $(addprefix lib/,\
 	libm/atan2f.c \
 	)
 endif
+
+.PHONY: check-release-needs-clean-build
+
+check-release-needs-clean-build:
+	@echo "RELEASE_NEEDS_CLEAN_BUILD = $(RELEASE_NEEDS_CLEAN_BUILD)"
diff --git a/py/gc.c b/py/gc.c
index e9b85fa7c..10b36950c 100755
--- a/py/gc.c
+++ b/py/gc.c
@@ -383,6 +383,10 @@ void gc_collect_start(void) {
     #endif
 }
 
+void gc_collect_ptr(void *ptr) {
+    gc_mark(ptr);
+}
+
 void gc_collect_root(void **ptrs, size_t len) {
     for (size_t i = 0; i < len; i++) {
         void *ptr = ptrs[i];
diff --git a/py/gc.h b/py/gc.h
index 757a2a6e0..02bf45158 100644
--- a/py/gc.h
+++ b/py/gc.h
@@ -43,6 +43,7 @@ bool gc_is_locked(void);
 // A given port must implement gc_collect by using the other collect functions.
 void gc_collect(void);
 void gc_collect_start(void);
+void gc_collect_ptr(void *ptr);
 void gc_collect_root(void **ptrs, size_t len);
 void gc_collect_end(void);