From a1c870e9f4562e1c1fd056653ff49efdda8bd840 Mon Sep 17 00:00:00 2001
From: "Paul m. p. P" <pmpp.pub@gmail.com>
Date: Mon, 8 Jul 2019 09:45:02 +0200
Subject: [PATCH] javascript: Enable support for frozen bytecode via
 FROZEN_MPY_DIR.

---
 ports/javascript/Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/ports/javascript/Makefile b/ports/javascript/Makefile
index 7309dfa481..384253e544 100644
--- a/ports/javascript/Makefile
+++ b/ports/javascript/Makefile
@@ -25,6 +25,13 @@ LDFLAGS = -m32 -Wl,-Map=$@.map,--cref -Wl,--gc-sections
 CFLAGS += -O0 -DNDEBUG
 CFLAGS += -fdata-sections -ffunction-sections
 
+ifneq ($(FROZEN_MPY_DIR),)
+# To use frozen bytecode, put your .py files in a subdirectory (eg frozen/) and
+# then invoke make with FROZEN_MPY_DIR=frozen (be sure to build from scratch).
+CFLAGS += -DMICROPY_QSTR_EXTRA_POOL=mp_qstr_frozen_const_pool
+CFLAGS += -DMICROPY_MODULE_FROZEN_MPY
+endif
+
 SRC_LIB = $(addprefix lib/,\
 	utils/interrupt_char.c \
 	utils/stdout_helpers.c \