[committed, obvious] OpenMP: Silence uninitialized variable warning in C++ front end.

[Sandra Loosemore]

There's no actual problem with the code here, just a false-positive
warning emitted by some older GCC versions.

gcc/cp/ChangeLog
        * parser.cc (cp_finish_omp_declare_variant): Initialize
        append_args_last.
---
 gcc/cp/parser.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
index 0578aad1b1c..9f619b11167 100644
--- a/gcc/cp/parser.cc
+++ b/gcc/cp/parser.cc
@@ -50383,7 +50383,7 @@ cp_finish_omp_declare_variant (cp_parser *parser, 
cp_token *pragma_tok,
   location_t varid_loc = make_location (caret_loc, start_loc, finish_loc);
 
   tree append_args_tree = NULL_TREE;
-  tree append_args_last;
+  tree append_args_last = NULL_TREE;
   vec<tree> adjust_args_list = vNULL;
   bool has_match = false, has_adjust_args = false;
   location_t adjust_args_loc = UNKNOWN_LOCATION;
-- 
2.34.1