json_sprit: fix the FTBFS on old gcc

Fixes: #11574
Signed-off-by: Kefu Chai <kchai@redhat.com>
(cherry picked from commit 6b68b27146852f057a3373cd04b08cd6917f3eea)

diff --git a/src/json_spirit/json_spirit_reader_template.h b/src/json_spirit/json_spirit_reader_template.h
index 2eaf743efae4c15d53de4620a66d0f33907dc463..c50f885ec0de90f9810d0675d6dd3e7b80006ee1 100644 (file)
--- a/src/json_spirit/json_spirit_reader_template.h
+++ b/src/json_spirit/json_spirit_reader_template.h
@@ -79,7 +79,7 @@ namespace json_spirit
     template<>\r
     std::string unicode_str_to_utf8( std::string::const_iterator & begin )\r
     {\r
-        typedef typename std::string::value_type Char_type;\r
+        typedef std::string::value_type Char_type;\r
 \r
         const Char_type c1( *( ++begin ) );\r
         const Char_type c2( *( ++begin ) );\r