Tidy up Jamfiles

example/echo-op/Jamfile

@@ -9,4 +9,5 @@ exe echo-op :
     echo_op.cpp
     :
     <variant>coverage:<build>no
+    <variant>ubasan:<build>no
     ;

example/http-client-ssl/Jamfile

@@ -47,4 +47,5 @@ exe http-client-ssl :
     http_client_ssl.cpp
     :
     <variant>coverage:<build>no
+    <variant>ubasan:<build>no
     ;

example/http-client/Jamfile

@@ -9,4 +9,5 @@ exe http-client :
     http_client.cpp
     :
     <variant>coverage:<build>no
+    <variant>ubasan:<build>no
     ;

example/http-crawl/Jamfile

@@ -10,4 +10,5 @@ exe http-crawl :
     urls_large_data.cpp
     :
     <variant>coverage:<build>no
+    <variant>ubasan:<build>no
     ;

example/server-framework/Jamfile

@@ -9,4 +9,5 @@ exe server-framework :
     main.cpp
     :
     <variant>coverage:<build>no
+    <variant>ubasan:<build>no
     ;

example/websocket-client-ssl/Jamfile

@@ -47,4 +47,5 @@ exe ssl-websocket-client :
     ssl_websocket_client.cpp
     :
     <variant>coverage:<build>no
+    <variant>ubasan:<build>no
     ;

example/websocket-client/Jamfile

@@ -9,4 +9,5 @@ exe websocket-client :
     websocket_client.cpp
     :
     <variant>coverage:<build>no
+    <variant>ubasan:<build>no
     ;