initial, prototype modifications to permit compilation of local libraries as static libs. required a "fix" to libs/pbd/debug.cc to even get the program up and running, and still does not work due to issues with boost::shared_ptr::enable_shared_from_this. controlled by configure-time --internal-{static,shared}-libs, set to shared by default (as has been the case for years)

libs/gtkmm2ext/wscript

@@ -1,5 +1,6 @@
 #!/usr/bin/env python
 from waflib.extras import autowaf as autowaf
+from waflib import Options
 import os
 
 # Version of this package (even if built as a child)
@@ -82,14 +83,18 @@ def configure(conf):
 
 
 def build(bld):
-    obj = bld(features = 'c cxx cxxshlib cshlib')
-    obj.source = gtkmm2ext_sources
+    if bld.is_defined ('INTERNAL_SHARED_LIBS'):
+        obj              = bld.shlib(features = 'c cxx cshlib cxxshlib', source=gtkmm2ext_sources)
+    else:
+        obj              = bld.stlib(features = 'c cxx cstlib cxxstlib', source=gtkmm2ext_sources)
+        obj.cxxflags     = [ '-fPIC' ]
+
     obj.export_includes = ['.']
     obj.includes     = ['.']
     obj.name         = 'libgtkmm2ext'
     obj.target       = 'gtkmm2ext'
     obj.uselib       = 'GTKMM GTK GTKOSX OSX GDK'
-    obj.use          = 'libpbd'
+    obj.use          = [ 'libpbd' ]
     obj.vnum         = GTKMM2EXT_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'ardour3')
     obj.defines     = [