From 5c5ecea6f17aae16808533aa248671069cdc5fa5 Mon Sep 17 00:00:00 2001
From: Jerzy Kasenberg <jerzy.kasenberg@gmail.com>
Date: Sun, 26 Dec 2021 22:19:07 +0100
Subject: build system: Changes for xc32 compiler

Three changes are needed to accommodate xc32 compiler build:
- optimized build flag other than -Os
   added CFLAGS_OPTIMIZED that defaults to -Os but can be overridden in boards
- build without -lnosys
   added LIBS_GCC with default libraries that can be changed in boards
- build without LD_FILE specification
   if LD_FILE is empty -Wl,-T options is not added to LDFLAGS
---
 examples/make.mk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'examples/make.mk')

diff --git a/examples/make.mk b/examples/make.mk
index 793c40aa2..bed46d02b 100644
--- a/examples/make.mk
+++ b/examples/make.mk
@@ -54,6 +54,8 @@ endif
 #-------------- Cross Compiler  ------------
 # Can be set by board, default to ARM GCC
 CROSS_COMPILE ?= arm-none-eabi-
+# Allow for -Os to be changed by board makefiles in case -Os is not allowed
+CFLAGS_OPTIMIZED ?= -Os
 
 CC = $(CROSS_COMPILE)gcc
 CXX = $(CROSS_COMPILE)g++
@@ -112,7 +114,7 @@ CFLAGS += \
 ifeq ($(DEBUG), 1)
   CFLAGS += -Og
 else
-  CFLAGS += -Os
+  CFLAGS += $(CFLAGS_OPTIMIZED)
 endif
 
 # Log level is mapped to TUSB DEBUG option
-- 
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