From a0d31e54ae5219a2794784311b6df45b680007d2 Mon Sep 17 00:00:00 2001
From: Jim Mussared <jim.mussared@gmail.com>
Date: Tue, 26 Mar 2024 13:10:45 +1100
Subject: [PATCH] esp8266/Makefile: Add support for C++ user C modules.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
---
 ports/esp8266/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ports/esp8266/Makefile b/ports/esp8266/Makefile
index 8af7aba0aa..1b9e9623b6 100644
--- a/ports/esp8266/Makefile
+++ b/ports/esp8266/Makefile
@@ -96,6 +96,9 @@ COPT += -Os -DNDEBUG
 LDFLAGS += --gc-sections
 endif
 
+# Flags for optional C++ source code
+CXXFLAGS += $(filter-out -Wmissing-prototypes -Wold-style-definition -std=gnu99,$(CFLAGS))
+
 # Options for mpy-cross
 MPY_CROSS_FLAGS += -march=xtensa