Export fields_base ostream operator for shared builds

sentientsergio · sentientsergio · commit 884076335553 · 2025-12-05T14:20:41.000-05:00
diff --git a/include/boost/http_proto/fields_base.hpp b/include/boost/http_proto/fields_base.hpp
@@ -1338,6 +1338,7 @@ class BOOST_HTTP_PROTO_DECL fields_base
     */
     friend
 
+    BOOST_HTTP_PROTO_DECL
     std::ostream&
     operator<<(
         std::ostream& os,
diff --git a/src/fields_base.cpp b/src/fields_base.cpp
@@ -850,6 +850,7 @@ find_all(
         &h_, find(name).i_);
 }
 
+BOOST_HTTP_PROTO_DECL
 std::ostream&
 operator<<(
     std::ostream& os,
