diff --git a/gtk2_ardour/wscript b/gtk2_ardour/wscript
index c5624f3936..b9f5b0e498 100644
--- a/gtk2_ardour/wscript
+++ b/gtk2_ardour/wscript
@@ -8,9 +8,6 @@ import re
 import subprocess
 import glob
 
-# Mandatory variables
-out = 'build'
-
 @TaskGen.extension('.m')
 def m_hook(self, node):
     """Alias .m files to be compiled the same as .c files, gcc will do the right thing."""
diff --git a/headless/wscript b/headless/wscript
index 5ec47e7441..0c6ac9443b 100644
--- a/headless/wscript
+++ b/headless/wscript
@@ -3,10 +3,6 @@ from waflib.extras import autowaf as autowaf
 import os
 import sys
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 hardour_sources = [
         'load_session.cc',
         'misc.cc',
diff --git a/libs/ardour/wscript b/libs/ardour/wscript
index 5f084c3f72..209e5a12ed 100644
--- a/libs/ardour/wscript
+++ b/libs/ardour/wscript
@@ -9,9 +9,6 @@ CURRENT_SESSION_FILE_VERSION = 7002
 
 I18N_PACKAGE = 'ardour'
 
-# Mandatory variables
-out = 'build'
-
 path_prefix = 'libs/ardour/'
 
 libardour_sources = [
diff --git a/libs/ardouralsautil/wscript b/libs/ardouralsautil/wscript
index ea7ad64b35..901c04af0b 100644
--- a/libs/ardouralsautil/wscript
+++ b/libs/ardouralsautil/wscript
@@ -5,10 +5,6 @@ import os
 import sys
 import re
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 path_prefix = 'libs/ardouralsautil/'
 
 def options(opt):
diff --git a/libs/audiographer/wscript b/libs/audiographer/wscript
index 3c63e7fff0..9a872691b4 100644
--- a/libs/audiographer/wscript
+++ b/libs/audiographer/wscript
@@ -13,10 +13,6 @@ AUDIOGRAPHER_VERSION = '0.0.0'
 #   0.0.0 = 0,0,0
 AUDIOGRAPHER_LIB_VERSION = '0.0.0'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/auscan/wscript b/libs/auscan/wscript
index 75ab3ef35b..2a7864527e 100644
--- a/libs/auscan/wscript
+++ b/libs/auscan/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 # needed for code used from libardour
 I18N_PACKAGE = 'ardour'
 
diff --git a/libs/backends/alsa/wscript b/libs/backends/alsa/wscript
index 8a3fb81154..4f8203c418 100644
--- a/libs/backends/alsa/wscript
+++ b/libs/backends/alsa/wscript
@@ -4,10 +4,6 @@ import os
 
 I18N_PACKAGE = 'alsa-backend'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/backends/coreaudio/wscript b/libs/backends/coreaudio/wscript
index 55437f7a4b..2abafd8519 100644
--- a/libs/backends/coreaudio/wscript
+++ b/libs/backends/coreaudio/wscript
@@ -5,10 +5,6 @@ import os
 
 I18N_PACKAGE = 'coreaudio-backend'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/backends/dummy/wscript b/libs/backends/dummy/wscript
index 7ebb95c14d..402eb544e0 100644
--- a/libs/backends/dummy/wscript
+++ b/libs/backends/dummy/wscript
@@ -4,10 +4,6 @@ import os
 
 I18N_PACKAGE = 'dummy-backend'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/backends/jack/wscript b/libs/backends/jack/wscript
index 7d31b0d619..d523125d8d 100644
--- a/libs/backends/jack/wscript
+++ b/libs/backends/jack/wscript
@@ -7,10 +7,6 @@ import re
 
 I18N_PACKAGE = 'jack-backend'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/backends/portaudio/wscript b/libs/backends/portaudio/wscript
index cfb88c23f2..d4181e1129 100644
--- a/libs/backends/portaudio/wscript
+++ b/libs/backends/portaudio/wscript
@@ -4,10 +4,6 @@ import os
 
 I18N_PACKAGE = 'portaudio-backend'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/backends/pulseaudio/wscript b/libs/backends/pulseaudio/wscript
index 3deb08ef59..4512e7c2cf 100644
--- a/libs/backends/pulseaudio/wscript
+++ b/libs/backends/pulseaudio/wscript
@@ -4,10 +4,6 @@ import os
 
 I18N_PACKAGE = 'pulse-backend'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/backends/wscript b/libs/backends/wscript
index 1822550875..67ca2b01b8 100644
--- a/libs/backends/wscript
+++ b/libs/backends/wscript
@@ -1,10 +1,6 @@
 #!/usr/bin/env python
 from waflib.extras import autowaf as autowaf
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/canvas/wscript b/libs/canvas/wscript
index b705fcd8fd..1c671ab0c3 100644
--- a/libs/canvas/wscript
+++ b/libs/canvas/wscript
@@ -16,10 +16,6 @@ CANVAS_LIB_VERSION = '0.0.0'
 
 I18N_PACKAGE = 'libcanvas'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 path_prefix = 'libs/canvas/'
 
 canvas_sources = [
diff --git a/libs/clearlooks-newer/wscript b/libs/clearlooks-newer/wscript
index 93fda4daf1..4de0b39d35 100644
--- a/libs/clearlooks-newer/wscript
+++ b/libs/clearlooks-newer/wscript
@@ -3,9 +3,6 @@ from waflib.extras import autowaf as autowaf
 import os
 import sys
 
-top = '.'
-out = 'build'
-
 path_prefix = 'libs/clearlooks-newer'
 
 def options(opt):
diff --git a/libs/ctrl-interface/control_protocol/wscript b/libs/ctrl-interface/control_protocol/wscript
index 9c2283f10f..078ff2b926 100644
--- a/libs/ctrl-interface/control_protocol/wscript
+++ b/libs/ctrl-interface/control_protocol/wscript
@@ -1,10 +1,6 @@
 #!/usr/bin/env python
 from waflib.extras import autowaf as autowaf
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 controlcp_sources = [
     'basic_ui.cc',
     'control_protocol.cc',
diff --git a/libs/evoral/wscript b/libs/evoral/wscript
index 7792d3d8ab..4a3f3cf260 100644
--- a/libs/evoral/wscript
+++ b/libs/evoral/wscript
@@ -16,10 +16,6 @@ EVORAL_LIB_VERSION = '0.0.0'
 
 APPNAME = 'evoral'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     opt.load('compiler_c')
     opt.load('compiler_cxx')
diff --git a/libs/fluidsynth/wscript b/libs/fluidsynth/wscript
index 498166531d..3b49e98162 100644
--- a/libs/fluidsynth/wscript
+++ b/libs/fluidsynth/wscript
@@ -9,10 +9,6 @@ LIBFLUIDSYNTH_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 
 I18N_PACKAGE = 'libfluidsynth'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/fst/wscript b/libs/fst/wscript
index d74b83a0d0..8717fafcd5 100644
--- a/libs/fst/wscript
+++ b/libs/fst/wscript
@@ -4,10 +4,6 @@ import os
 import sys
 import re
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 # needed for code used from libardour
 I18N_PACKAGE = 'ardour'
 
diff --git a/libs/gtkmm2ext/wscript b/libs/gtkmm2ext/wscript
index 46fb15c5a5..3d306ecbb1 100644
--- a/libs/gtkmm2ext/wscript
+++ b/libs/gtkmm2ext/wscript
@@ -47,9 +47,6 @@ gtkmm2ext_sources = [
         'window_title.cc'
 ]
 
-# Mandatory variables
-out = 'build'
-
 path_prefix = 'libs/gtkmm2ext/'
 
 def options(opt):
diff --git a/libs/hidapi/wscript b/libs/hidapi/wscript
index 60089c769a..422ae2340b 100644
--- a/libs/hidapi/wscript
+++ b/libs/hidapi/wscript
@@ -5,10 +5,6 @@ import sys
 
 HIDAPI_VERSION = '0.8.0'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/libltc/wscript b/libs/libltc/wscript
index 7a4b60ceff..18cf080080 100644
--- a/libs/libltc/wscript
+++ b/libs/libltc/wscript
@@ -15,10 +15,6 @@ LIBLTC_LIB_VERSION = '1.1.1'
 
 I18N_PACKAGE = 'libltc'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/lua/wscript b/libs/lua/wscript
index 6e54739b6f..8817e69337 100644
--- a/libs/lua/wscript
+++ b/libs/lua/wscript
@@ -3,10 +3,6 @@ from waflib.extras import autowaf as autowaf
 
 I18N_PACKAGE = 'liblua'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/midi++2/wscript b/libs/midi++2/wscript
index 8f661b9161..d317b3c566 100644
--- a/libs/midi++2/wscript
+++ b/libs/midi++2/wscript
@@ -13,10 +13,6 @@ LIBMIDIPP_VERSION = "%s.%s.%s" % (MAJOR, MINOR, MICRO)
 # micro increment <=> no interface changes
 LIBMIDIPP_LIB_VERSION = '4.1.0'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 path_prefix = 'libs/midi++2/'
 
 libmidi_sources = [
diff --git a/libs/panners/1in2out/wscript b/libs/panners/1in2out/wscript
index 262dc7613e..2d7e0238ce 100644
--- a/libs/panners/1in2out/wscript
+++ b/libs/panners/1in2out/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/panners/2in2out/wscript b/libs/panners/2in2out/wscript
index f09e4369c1..5fe9a7ea7d 100644
--- a/libs/panners/2in2out/wscript
+++ b/libs/panners/2in2out/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/panners/stereobalance/wscript b/libs/panners/stereobalance/wscript
index 7cc81e9ca0..e9e7360c71 100644
--- a/libs/panners/stereobalance/wscript
+++ b/libs/panners/stereobalance/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/panners/vbap/wscript b/libs/panners/vbap/wscript
index f590a015ca..bba071c580 100644
--- a/libs/panners/vbap/wscript
+++ b/libs/panners/vbap/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/panners/wscript b/libs/panners/wscript
index a25e777bba..53869f41ac 100644
--- a/libs/panners/wscript
+++ b/libs/panners/wscript
@@ -1,10 +1,6 @@
 #!/usr/bin/env python
 from waflib.extras import autowaf as autowaf
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
 
     autowaf.set_options(opt)
diff --git a/libs/pbd/wscript b/libs/pbd/wscript
index f3955eaad2..0464e1f8b7 100644
--- a/libs/pbd/wscript
+++ b/libs/pbd/wscript
@@ -19,10 +19,6 @@ LIBPBD_MAJOR_VERSION = '4'
 
 I18N_PACKAGE = 'libpbd4'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 path_prefix = 'libs/pbd/'
 
 libpbd_sources = [
diff --git a/libs/plugins/a-comp.lv2/wscript b/libs/plugins/a-comp.lv2/wscript
index 29a50d5fb5..5ca3c6fc61 100644
--- a/libs/plugins/a-comp.lv2/wscript
+++ b/libs/plugins/a-comp.lv2/wscript
@@ -3,10 +3,6 @@ import re
 import waflib.extras.autowaf as autowaf
 import waflib.Utils as Utils
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/plugins/a-delay.lv2/wscript b/libs/plugins/a-delay.lv2/wscript
index 9def1bba5a..5e9d66c4de 100644
--- a/libs/plugins/a-delay.lv2/wscript
+++ b/libs/plugins/a-delay.lv2/wscript
@@ -3,10 +3,6 @@ import re
 import waflib.extras.autowaf as autowaf
 import waflib.Utils as Utils
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/plugins/a-eq.lv2/wscript b/libs/plugins/a-eq.lv2/wscript
index a88d38dcce..c39e046276 100644
--- a/libs/plugins/a-eq.lv2/wscript
+++ b/libs/plugins/a-eq.lv2/wscript
@@ -3,10 +3,6 @@ import re
 import waflib.extras.autowaf as autowaf
 import waflib.Utils as Utils
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/plugins/a-exp.lv2/wscript b/libs/plugins/a-exp.lv2/wscript
index e0393b0930..5ab34ae575 100644
--- a/libs/plugins/a-exp.lv2/wscript
+++ b/libs/plugins/a-exp.lv2/wscript
@@ -3,10 +3,6 @@ import re
 import waflib.extras.autowaf as autowaf
 import waflib.Utils as Utils
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/plugins/a-fluidsynth.lv2/wscript b/libs/plugins/a-fluidsynth.lv2/wscript
index 40e39517e5..10038e7fef 100644
--- a/libs/plugins/a-fluidsynth.lv2/wscript
+++ b/libs/plugins/a-fluidsynth.lv2/wscript
@@ -3,10 +3,6 @@ import re
 import waflib.extras.autowaf as autowaf
 import waflib.Utils as Utils
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/plugins/a-reverb.lv2/wscript b/libs/plugins/a-reverb.lv2/wscript
index ba757da88e..cf955726b2 100644
--- a/libs/plugins/a-reverb.lv2/wscript
+++ b/libs/plugins/a-reverb.lv2/wscript
@@ -3,10 +3,6 @@ import re
 import waflib.extras.autowaf as autowaf
 import waflib.Utils as Utils
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/plugins/reasonablesynth.lv2/wscript b/libs/plugins/reasonablesynth.lv2/wscript
index 5ecda413c8..8a27dcb11c 100644
--- a/libs/plugins/reasonablesynth.lv2/wscript
+++ b/libs/plugins/reasonablesynth.lv2/wscript
@@ -3,10 +3,6 @@ import re
 import waflib.extras.autowaf as autowaf
 import waflib.Utils as Utils
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/ptformat/wscript b/libs/ptformat/wscript
index b71a237aec..d34a4e27df 100644
--- a/libs/ptformat/wscript
+++ b/libs/ptformat/wscript
@@ -12,10 +12,6 @@ LIBPTFORMAT_LIB_VERSION = '0.0.0'
 
 I18N_PACKAGE = 'libptformat'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/qm-dsp/wscript b/libs/qm-dsp/wscript
index 6faf79af10..8440f36069 100644
--- a/libs/qm-dsp/wscript
+++ b/libs/qm-dsp/wscript
@@ -10,10 +10,6 @@ QM_DSP_VERSION = '1.7.1'
 # micro increment <=> no interface changes
 QM_DSP_LIB_VERSION = '1.7.1'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/cc121/wscript b/libs/surfaces/cc121/wscript
index 6b6574c919..4412dd36c5 100644
--- a/libs/surfaces/cc121/wscript
+++ b/libs/surfaces/cc121/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/contourdesign/wscript b/libs/surfaces/contourdesign/wscript
index c582ac2e02..309dade419 100644
--- a/libs/surfaces/contourdesign/wscript
+++ b/libs/surfaces/contourdesign/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/faderport/wscript b/libs/surfaces/faderport/wscript
index a38ee983b2..b614ae56db 100644
--- a/libs/surfaces/faderport/wscript
+++ b/libs/surfaces/faderport/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/faderport8/wscript b/libs/surfaces/faderport8/wscript
index e04bf1f939..affafe1a0f 100644
--- a/libs/surfaces/faderport8/wscript
+++ b/libs/surfaces/faderport8/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 fp8_16_sources = [
         'faderport8.cc',
         'fp8_controls.cc',
diff --git a/libs/surfaces/frontier/wscript b/libs/surfaces/frontier/wscript
index 111e723d2d..7909e2b705 100644
--- a/libs/surfaces/frontier/wscript
+++ b/libs/surfaces/frontier/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/generic_midi/wscript b/libs/surfaces/generic_midi/wscript
index 034ec1d496..28edcd0a9b 100644
--- a/libs/surfaces/generic_midi/wscript
+++ b/libs/surfaces/generic_midi/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/launch_control_xl/wscript b/libs/surfaces/launch_control_xl/wscript
index 4ac93a0757..36297506bd 100644
--- a/libs/surfaces/launch_control_xl/wscript
+++ b/libs/surfaces/launch_control_xl/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/mackie/wscript b/libs/surfaces/mackie/wscript
index 283974dc4e..2400cf740c 100644
--- a/libs/surfaces/mackie/wscript
+++ b/libs/surfaces/mackie/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 mackie_sources = [
             'button.cc',
             'controls.cc',
diff --git a/libs/surfaces/maschine2/wscript b/libs/surfaces/maschine2/wscript
index 34f4e6d702..14c009d275 100644
--- a/libs/surfaces/maschine2/wscript
+++ b/libs/surfaces/maschine2/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/osc/wscript b/libs/surfaces/osc/wscript
index c1d3348f71..d0effec434 100644
--- a/libs/surfaces/osc/wscript
+++ b/libs/surfaces/osc/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/push2/wscript b/libs/surfaces/push2/wscript
index 26a5f10a49..3f40fb4381 100644
--- a/libs/surfaces/push2/wscript
+++ b/libs/surfaces/push2/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/tranzport/wscript b/libs/surfaces/tranzport/wscript
index 3f94a6d794..57a5404f1c 100644
--- a/libs/surfaces/tranzport/wscript
+++ b/libs/surfaces/tranzport/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/us2400/wscript b/libs/surfaces/us2400/wscript
index df72af180a..6c7ba693ac 100644
--- a/libs/surfaces/us2400/wscript
+++ b/libs/surfaces/us2400/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/websockets/wscript b/libs/surfaces/websockets/wscript
index a9b839b07c..7c23e63579 100644
--- a/libs/surfaces/websockets/wscript
+++ b/libs/surfaces/websockets/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/wiimote/wscript b/libs/surfaces/wiimote/wscript
index 48abca02cb..3d12b7e6fd 100644
--- a/libs/surfaces/wiimote/wscript
+++ b/libs/surfaces/wiimote/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/surfaces/wscript b/libs/surfaces/wscript
index 75c4d7c55d..c51390284f 100644
--- a/libs/surfaces/wscript
+++ b/libs/surfaces/wscript
@@ -11,10 +11,6 @@ LIBSURFACES_VERSION = '4.1.0'
 # micro increment <=> no interface changes
 LIBSURFACES_LIB_VERSION = '4.1.0'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 children = [
     'faderport',
     'faderport8',
diff --git a/libs/temporal/wscript b/libs/temporal/wscript
index 821fccec85..7037e3b7f5 100644
--- a/libs/temporal/wscript
+++ b/libs/temporal/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 # Version of this package (even if built as a child)
 MAJOR = '0'
 MINOR = '0'
diff --git a/libs/vamp-plugins/wscript b/libs/vamp-plugins/wscript
index 7232eaae66..f77e2ff8d1 100644
--- a/libs/vamp-plugins/wscript
+++ b/libs/vamp-plugins/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/vamp-pyin/wscript b/libs/vamp-pyin/wscript
index 019267e4c2..aa9b4f8c98 100644
--- a/libs/vamp-pyin/wscript
+++ b/libs/vamp-pyin/wscript
@@ -8,10 +8,6 @@ import os
 # micro increment <=> no interface changes
 VAMP_PYIN_LIB_VERSION = '0.0.0'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/vfork/wscript b/libs/vfork/wscript
index 0d71723dc8..67ee1b1514 100644
--- a/libs/vfork/wscript
+++ b/libs/vfork/wscript
@@ -2,10 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/waveview/wscript b/libs/waveview/wscript
index 7cf2303050..fa1a0ed4d8 100644
--- a/libs/waveview/wscript
+++ b/libs/waveview/wscript
@@ -15,10 +15,6 @@ WAVEVIEW_LIB_VERSION = '0.0.0'
 
 I18N_PACKAGE = 'libwaveview'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 waveview_sources = [
         'debug.cc',
         'wave_view.cc',
diff --git a/libs/widgets/wscript b/libs/widgets/wscript
index 5ac5bbac92..c6e0130bb2 100644
--- a/libs/widgets/wscript
+++ b/libs/widgets/wscript
@@ -15,10 +15,6 @@ WIDGETS_LIB_VERSION = '0.0.0'
 
 I18N_PACKAGE = 'libwidgets'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 widgets_sources = [
         'ardour_ctrl_base.cc',
         'ardour_button.cc',
diff --git a/libs/zita-convolver/wscript b/libs/zita-convolver/wscript
index 3046ae04ad..22e16b6467 100644
--- a/libs/zita-convolver/wscript
+++ b/libs/zita-convolver/wscript
@@ -15,10 +15,6 @@ ZCONVOLVER_LIB_VERSION = '4.0.0'
 
 I18N_PACKAGE = 'libzita-convolver'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/libs/zita-resampler/wscript b/libs/zita-resampler/wscript
index 980f0a241d..eb2e8f50a7 100644
--- a/libs/zita-resampler/wscript
+++ b/libs/zita-resampler/wscript
@@ -15,10 +15,6 @@ ZRESAMPLER_LIB_VERSION = '1.6.0'
 
 I18N_PACKAGE = 'libzita-resampler'
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 zresampler_sources = [
         'resampler.cc',
         'resampler-table.cc',
diff --git a/luasession/wscript b/luasession/wscript
index 422539468d..19fc3d94ee 100644
--- a/luasession/wscript
+++ b/luasession/wscript
@@ -4,9 +4,6 @@ import waflib.Utils as Utils
 import os
 import sys
 
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/session_utils/wscript b/session_utils/wscript
index d63e9f07ae..19bc103e1a 100644
--- a/session_utils/wscript
+++ b/session_utils/wscript
@@ -4,10 +4,6 @@ import waflib.Utils as Utils
 import os
 import sys
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/share/export/wscript b/share/export/wscript
index c7dab5a23d..ab614755d3 100644
--- a/share/export/wscript
+++ b/share/export/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/share/mcp/wscript b/share/mcp/wscript
index eed71a1b10..f104b13e45 100644
--- a/share/mcp/wscript
+++ b/share/mcp/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/share/media/wscript b/share/media/wscript
index df2dbd07a9..f3cd949475 100644
--- a/share/media/wscript
+++ b/share/media/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/share/midi_maps/wscript b/share/midi_maps/wscript
index 76f6d65e5b..5624631993 100644
--- a/share/midi_maps/wscript
+++ b/share/midi_maps/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/share/osc/wscript b/share/osc/wscript
index 2da25b787a..6c6257142a 100644
--- a/share/osc/wscript
+++ b/share/osc/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/share/patchfiles/wscript b/share/patchfiles/wscript
index a75175272e..173005f004 100644
--- a/share/patchfiles/wscript
+++ b/share/patchfiles/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/share/plugin_metadata/wscript b/share/plugin_metadata/wscript
index 04e2a14971..9b254e709a 100644
--- a/share/plugin_metadata/wscript
+++ b/share/plugin_metadata/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/share/scripts/wscript b/share/scripts/wscript
index 40cb43f489..62962bd405 100644
--- a/share/scripts/wscript
+++ b/share/scripts/wscript
@@ -2,9 +2,6 @@
 
 import os
 
-top = '.'
-out = 'build'
-
 def configure(conf):
     pass
 
diff --git a/tools/bb/wscript b/tools/bb/wscript
index b64ead9baa..2cd093a879 100644
--- a/tools/bb/wscript
+++ b/tools/bb/wscript
@@ -2,10 +2,6 @@
 import waflib.Utils as Utils
 import os
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(ctx):
     pass
 
diff --git a/tools/gccabicheck/wscript b/tools/gccabicheck/wscript
index 4183cbe0b7..088fc834c3 100644
--- a/tools/gccabicheck/wscript
+++ b/tools/gccabicheck/wscript
@@ -3,10 +3,6 @@ from waflib.extras import autowaf as autowaf
 import re
 import sys
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)
 
diff --git a/tools/sanity_check/wscript b/tools/sanity_check/wscript
index 9e50f6fc3d..35d761384e 100644
--- a/tools/sanity_check/wscript
+++ b/tools/sanity_check/wscript
@@ -1,10 +1,6 @@
 #!/usr/bin/env python
 from waflib.extras import autowaf as autowaf
 
-# Mandatory variables
-top = '.'
-out = 'build'
-
 def options(opt):
     autowaf.set_options(opt)