initial launchpad X exploration, using copy-n-edit of launchpad pro code

libs/surfaces/launchpad_x/wscript

@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+from waflib.extras import autowaf as autowaf
+import os
+
+def options(opt):
+    pass
+
+def configure(conf):
+    autowaf.check_pkg(conf, 'pangomm-1.4', uselib_store='PANGOMM', atleast_version='1.4', mandatory=True)
+    autowaf.check_pkg(conf, 'cairomm-1.0', uselib_store='CAIROMM', atleast_version='1.8.4', mandatory=True)
+
+def build(bld):
+    obj = bld(features = 'cxx cxxshlib')
+    obj.source = '''
+	lpx.cc
+	interface.cc
+	gui.cc
+    '''
+    obj.defines      = [ 'PACKAGE="ardour_launchpad_x"' ]
+    obj.defines     += [ 'ARDOURSURFACE_DLL_EXPORTS' ]
+    obj.defines     += [ 'VERSIONSTRING="' + bld.env['VERSION'] + '"' ]
+    obj.includes     = ['.', '..', './launchpad_x']
+    obj.name         = 'libardour_launchpad_x'
+    obj.target       = 'ardour_launchpad_x'
+    obj.uselib       = 'CAIROMM PANGOMM USB GTKMM SIGCPP XML OSX'
+    obj.use          = 'libardour libardour_cp libardour_midisurface libgtkmm2ext libpbd libevoral libcanvas libtemporal'
+    obj.install_path = os.path.join(bld.env['LIBDIR'], 'surfaces')
+
+def shutdown():
+    autowaf.shutdown()