make copies of global lists before extending

[ardour.git] / libs / ardour / wscript

diff --git a/libs/ardour/wscript b/libs/ardour/wscript
index dccdd303455d9e3c0749154017cb6d01c8a9884a..262b10159a534bead89ed629f326097461975e3d 100644 (file)
--- a/libs/ardour/wscript
+++ b/libs/ardour/wscript
@@ -65,6 +65,7 @@ libardour_sources = [
         'delivery.cc',
         'directory_names.cc',
         'diskstream.cc',
+        'ebur128_analysis.cc',
         'element_import_handler.cc',
         'element_importer.cc',
         'engine_slave.cc',
@@ -334,7 +335,8 @@ def build(bld):
     # micro increment <=> no interface changes
     LIBARDOUR_LIB_VERSION = "3.0.0"
 
-    sources = libardour_sources
+    # operate on copy to avoid adding sources twice
+    sources = list(libardour_sources)
     if bld.is_tracks_build():
         sources += [ 'engine_state_controller.cc' ]