1 files changed, 30 insertions, 0 deletions
diff --git a/site_scons/site_tools/convlib.py b/site_scons/site_tools/convlib.py
new file mode 100644
index 0000000..3c174e2
--- /dev/null
+++ b/site_scons/site_tools/convlib.py
@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+# -*- python -*-
+import SCons
+
+def generate(env, **kwargs):
+    """This is a utility function that creates the ConvenienceLibrary
+    Builder in an Environment if it is not there already.
+
+    If it is already there, we return the existing one.
+
+    Based on the stock StaticLibrary and SharedLibrary builders.
+    """
+    try:
+        convenience_lib = env['BUILDERS']['ConvenienceLibrary']
+    except KeyError:
+        action_list = [ SCons.Action.Action ("$ARCOM", "$ARCOMSTR") ]
+        if env['BUILDERS'].has_key('RANLIB'):
+            ranlib_action = SCons.Action.Action("$RANLIBCOM", "$RANLIBCOMSTR")
+            action_list.append(ranlib_action)
+
+        convenience_lib = SCons.Builder.Builder (action = action_list,
+                                                 emitter = '$LIBEMITTER',
+                                                 prefix = '$LIBPREFIX',
+                                                 suffix = '$LIBSUFFIX',
+                                                 src_suffix = '$SHOBJSUFFIX',
+                                                 src_builder = 'SharedObject')
+        env['BUILDERS']['ConvenienceLibrary'] = convenience_lib
+
+def exists(env):
+    return True