From afffba7b7bc81e135ca0d10e3ee97774a6574361 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 7 Jun 2019 13:02:25 -0400
Subject: [PATCH] Add -mtune=native option to makefile Added for Solaris 11 .3
 on SPARC64

---
 GNUmakefile | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/GNUmakefile b/GNUmakefile
index 5e98825d..5f3c30c3 100755
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -860,6 +860,15 @@ ifeq ($(findstring native,$(MAKECMDGOALS)),native)
     NATIVE_OPT = -march=native
   endif # NATIVE_OPT
 
+  # And tune
+  ifeq ($(NATIVE_OPT),)
+    TOPT = -mtune=native
+    HAVE_OPT = $(shell $(CXX) $(TCXXFLAGS) $(ZOPT) $(TOPT) $(TPROG) -o $(TOUT) 2>&1 | tr ' ' '\n' | wc -l)
+    ifeq ($(strip $(HAVE_OPT)),0)
+      NATIVE_OPT = -mtune=native
+    endif # NATIVE_OPT
+  endif
+
   # Try SunCC next
   ifeq ($(NATIVE_OPT),)
     TOPT = -native