scons: List all targets.
diff --git a/SConstruct b/SConstruct
index 6b725c4..029daa1 100644
--- a/SConstruct
+++ b/SConstruct
@@ -143,3 +143,18 @@
duplicate = 0 # http://www.scons.org/doc/0.97/HTML/scons-user/x2261.html
)
+
+########################################################################
+# List all aliases
+
+try:
+ from SCons.Node.Alias import default_ans
+except ImportError:
+ pass
+else:
+ aliases = default_ans.keys()
+ aliases.sort()
+ env.Help('\n')
+ env.Help('Recognized targets:\n')
+ for alias in aliases:
+ env.Help(' %s\n' % alias)