From a7bac0832ff189e6cb9f92a784fd7273e3baa777 Mon Sep 17 00:00:00 2001
From: Jeff H <jeffrey92@gmail.com>
Date: Fri, 26 Oct 2018 11:42:01 -0700
Subject: [PATCH] working for gcc 6.4.0 + 7.3.0

---
 Makefile | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index b7f2802..e732516 100644
--- a/Makefile
+++ b/Makefile
@@ -4,8 +4,13 @@
 # which can be used with multiple SDK versions.
 STANDALONE = y
 
+# NOTE: 4.8.5 has failing patches and 5.2.0 fails at GCC compile
+# GCC_VERSION = 4.8.5
+# GCC_VERSION = 5.2.0
+
+# GCC_VERSION = 6.4.0
 GCC_VERSION = 7.3.0
-CT_GCC_VERSION = 7_3_0
+CT_GCC_VERSION = $(shell echo $(GCC_VERSION) | sed -e 's/\./_/g')
 
 # Directory to install toolchain to, by default inside current dir.
 TOOLCHAIN = $(TOP)/xtensa-lx106-elf