Here's a patch for the more conservative option.
- Braden Obrzut
2014-08-06 Braden Obrzut <ad...@maniacsvault.net>
* pt.c (check_explicit_specialization): Ensure tmpl is a function
template before checking if it is inline for COMDAT.
diff --git a/gcc/cp/pt.c b/gcc/cp/pt.c
index 57e7216..3bc3961 100644
--- a/gcc/cp/pt.c
+++ b/gcc/cp/pt.c
@@ -2817,7 +2817,7 @@ check_explicit_specialization (tree declarator,
It's just the name of an instantiation. But, it's not
a request for an instantiation, either. */
SET_DECL_IMPLICIT_INSTANTIATION (decl);
- else
+ else if (DECL_FUNCTION_TEMPLATE_P (tmpl))
/* A specialization is not necessarily COMDAT. */
DECL_COMDAT (decl) = DECL_DECLARED_INLINE_P (decl);
