diff --git a/toolchain/haxe-target.xml b/toolchain/haxe-target.xml
index 076dce221..cfff7ceeb 100644
--- a/toolchain/haxe-target.xml
+++ b/toolchain/haxe-target.xml
@@ -1,7 +1,7 @@
 <xml>
 
 <!-- make sure hxcpp.n is up to date -->
-<pleaseUpdateHxcppTool version="4" />
+<pleaseUpdateHxcppTool version="5" />
 
 <pragma once="true" />
 
diff --git a/tools/hxcpp/BuildTool.hx b/tools/hxcpp/BuildTool.hx
index cd809ff00..92be6063c 100644
--- a/tools/hxcpp/BuildTool.hx
+++ b/tools/hxcpp/BuildTool.hx
@@ -894,7 +894,11 @@ class BuildTool
          if (valid(el,""))
             switch(el.name)
             {
-               case "flag" : c.addFlag(substitute(el.att.value), el.has.tag?substitute(el.att.tag):"");
+               case "flag" :
+                     var tag =  el.has.tag?substitute(el.att.tag):"";
+                     if (el.has.name)
+                        c.addFlag(substitute(el.att.name), tag);
+                     c.addFlag(substitute(el.att.value), tag);
                case "cflag" : c.mCFlags.push(substitute(el.att.value));
                case "cppflag" : c.mCPPFlags.push(substitute(el.att.value));
                case "objcflag" : c.mOBJCFlags.push(substitute(el.att.value));
@@ -1090,7 +1094,10 @@ class BuildTool
          if (valid(el,""))
             switch(el.name)
             {
-               case "flag" : l.mFlags.push(substitute(el.att.value));
+               case "flag" :
+                   if (el.has.name)
+                      l.mFlags.push(substitute(el.att.name));
+                   l.mFlags.push(substitute(el.att.value));
                case "ext" : l.mExt = (substitute(el.att.value));
                case "outflag" : l.mOutFlag = (substitute(el.att.value));
                case "libdir" : l.mLibDir = (substitute(el.att.name));
@@ -1150,9 +1157,10 @@ class BuildTool
          if (valid(el,""))
             switch(el.name)
             {
-                case "flag" : s.mFlags.push(substitute(el.att.value));
-                case "outPre" : s.mOutPre = substitute(el.att.value);
-                case "outPost" : s.mOutPost = substitute(el.att.value);
+                case "flag" :
+                    if (el.has.name)
+                       s.mFlags.push(substitute(el.att.name));
+                    s.mFlags.push(substitute(el.att.value));
                 case "exe" : s.mExe = substitute((el.att.name));
             }
       }
@@ -1160,7 +1168,6 @@ class BuildTool
       return s;
    }
 
-
    public function createStripper(inXML:XmlAccess,inBase:Stripper):Stripper
    {
       var s = (inBase!=null && !inXML.has.replace) ? inBase :
@@ -1170,7 +1177,10 @@ class BuildTool
          if (valid(el,""))
             switch(el.name)
             {
-                case "flag" : s.mFlags.push(substitute(el.att.value));
+                case "flag" :
+                    if (el.has.name)
+                       s.mFlags.push(substitute(el.att.name));
+                    s.mFlags.push(substitute(el.att.value));
                 case "exe" : s.mExe = substitute((el.att.name));
             }
       }
@@ -1238,7 +1248,10 @@ class BuildTool
                          target.mLibs.push(lib);
                   }
 
-               case "flag" : target.mFlags.push( substitute(el.att.value) );
+               case "flag" :
+                   if (el.has.name)
+                      target.mFlags.push( substitute(el.att.name) );
+                   target.mFlags.push( substitute(el.att.value) );
                case "depend" : target.mDepends.push( substitute(el.att.name) );
                case "vflag" :
                   target.mFlags.push( substitute(el.att.name) );
@@ -2334,7 +2347,7 @@ class BuildTool
    public function checkToolVersion(inVersion:String)
    {
       var ver = Std.parseInt(inVersion);
-      if (ver>4)
+      if (ver>5)
          Log.error("Your version of hxcpp.n is out-of-date.  Please update by compiling 'haxe compile.hxml' in hxcpp/tools/hxcpp.");
    }