From af56a1f5c7cf91a841bdb11c48dbb65814d3a0cb Mon Sep 17 00:00:00 2001
From: Seth R Johnson <johnsonsr@ornl.gov>
Date: Thu, 10 Feb 2022 07:46:16 -0500
Subject: [PATCH] Preserve "externc" for non-brace thread_local

---
 Source/CParse/parser.y | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Source/CParse/parser.y b/Source/CParse/parser.y
index 35415bb28..0f9cffa61 100644
--- a/Source/CParse/parser.y
+++ b/Source/CParse/parser.y
@@ -5094,7 +5094,13 @@ extern_string :  EXTERN string {
 
 storage_class  : EXTERN { $$ = "extern"; }
 	       | extern_string { $$ = $1; }
-	       | extern_string THREAD_LOCAL { $$ = "thread_local"; }
+	       | extern_string THREAD_LOCAL {
+                if (Equal($1, "extern")) {
+                  $$ = "extern thread_local";
+                } else {
+                  $$ = "externc thread_local";
+                }
+	       }
 	       | extern_string TYPEDEF { $$ = "typedef"; }
                | STATIC { $$ = "static"; }
                | TYPEDEF { $$ = "typedef"; }