[msitools] wixl: do not use g_hash_table_add

[Marc-Andre Lureau <malureau src gnome org>]

commit 07119d1476db0a7568f79cbc855a888007dc7400
Author: Paolo Bonzini <pbonzini redhat com>
Date:   Thu Jan 17 08:57:26 2013 +0100

    wixl: do not use g_hash_table_add
    
    This is not supported in GLib 2.22, which is the version used in RHEL6.

 tools/wixl/msi.vala          |    2 +-
 tools/wixl/preprocessor.vala |    2 +-
 tools/wixl/util.vala         |    4 ++++
 3 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/tools/wixl/msi.vala b/tools/wixl/msi.vala
index 10bdccd..15092c5 100644
--- a/tools/wixl/msi.vala
+++ b/tools/wixl/msi.vala
@@ -69,7 +69,7 @@ namespace Wixl {
             public HashTable<Action, Action*> depends_on = new HashTable<Action, Action*> (direct_hash, direct_equal);
 
             public void add_dep (Action a) {
-                depends_on.add (a);
+                hash_table_add (depends_on, a);
                 a.incoming_deps = true;
             }
         }
diff --git a/tools/wixl/preprocessor.vala b/tools/wixl/preprocessor.vala
index 73fe114..98c95c9 100644
--- a/tools/wixl/preprocessor.vala
+++ b/tools/wixl/preprocessor.vala
@@ -277,7 +277,7 @@ namespace Wixl {
             if (is_req) {
                 if (requires.lookup_extended (name, null, null))
                     return;
-                requires.add (name);
+                hash_table_add (requires, name);
             }
 
             string[] dirs = {};
diff --git a/tools/wixl/util.vala b/tools/wixl/util.vala
index 29d9734..e7fadcc 100644
--- a/tools/wixl/util.vala
+++ b/tools/wixl/util.vala
@@ -32,6 +32,10 @@ namespace Wixl {
         return v.value;
     }
 
+    public void hash_table_add<G> (HashTable<G, G*> h, G o) {
+        h.replace (o, o);
+    }
+
     public string add_braces (string str) {
         if (str[0] == '{')
             return str;