diff --git a/libs/backends/alsa/wscript b/libs/backends/alsa/wscript
index 173b6e0890..7a4649f779 100644
--- a/libs/backends/alsa/wscript
+++ b/libs/backends/alsa/wscript
@@ -4,11 +4,6 @@ import os
 import sys
 import re
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-ALSABACKEND_VERSION = '0.0.1'
 I18N_PACKAGE = 'alsa-backend'
 
 # Mandatory variables
@@ -35,7 +30,6 @@ def build(bld):
     obj.target   = 'alsa_audiobackend'
     obj.use      = 'libardour libpbd ardouralsautil'
     obj.uselib   = 'ALSA'
-    obj.vnum     = ALSABACKEND_VERSION
     obj.install_path  = os.path.join(bld.env['LIBDIR'], 'backends')
     obj.defines = ['PACKAGE="' + I18N_PACKAGE + '"',
                    'ARDOURBACKEND_DLL_EXPORTS'
diff --git a/libs/backends/dummy/wscript b/libs/backends/dummy/wscript
index 9eb41a9ec0..e1a598525c 100644
--- a/libs/backends/dummy/wscript
+++ b/libs/backends/dummy/wscript
@@ -4,11 +4,6 @@ import os
 import sys
 import re
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-DUMMYBACKEND_VERSION = '0.0.1'
 I18N_PACKAGE = 'dummy-backend'
 
 # Mandatory variables
@@ -30,8 +25,6 @@ def build(bld):
     obj.name     = 'dummy_audiobackend'
     obj.target   = 'dummy_audiobackend'
     obj.use      = 'libardour libpbd'
-    if (bld.env['build_target'] != 'mingw'):
-        obj.vnum     = DUMMYBACKEND_VERSION
     obj.install_path  = os.path.join(bld.env['LIBDIR'], 'backends')
     obj.defines = ['PACKAGE="' + I18N_PACKAGE + '"',
                    'ARDOURBACKEND_DLL_EXPORTS'
diff --git a/libs/backends/jack/wscript b/libs/backends/jack/wscript
index 5cf7e91f02..d9e3146e7c 100644
--- a/libs/backends/jack/wscript
+++ b/libs/backends/jack/wscript
@@ -5,11 +5,6 @@ import os
 import sys
 import re
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-JACKBACKEND_VERSION = '1.0.0'
 I18N_PACKAGE = 'jack-backend'
 
 # Mandatory variables
@@ -69,7 +64,6 @@ def build(bld):
         obj.uselib   = [ 'PORTAUDIO' ]
     else:
         obj.uselib   = [ ]
-        obj.vnum     = JACKBACKEND_VERSION
 
     if bld.env['libjack_link'] == 'link':
         obj.uselib   += [ 'JACK' ]
diff --git a/libs/backends/wavesaudio/wscript b/libs/backends/wavesaudio/wscript
index f37c7abbde..5235803034 100644
--- a/libs/backends/wavesaudio/wscript
+++ b/libs/backends/wavesaudio/wscript
@@ -4,11 +4,6 @@ import os
 import sys
 import re
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-WAVESAUDIOBACKEND_VERSION = '0.0.1'
 I18N_PACKAGE = 'wavesaudio-backend'
 
 # Mandatory variables
@@ -95,8 +90,6 @@ def build(bld):
     obj.use      = 'libardour libpbd'
     if bld.env['build_target'] == 'mingw':
         obj.uselib   = ['PORTAUDIO']
-    if (bld.env['build_target'] != 'mingw'):
-        obj.vnum     = WAVESAUDIOBACKEND_VERSION
     obj.install_path  = os.path.join(bld.env['LIBDIR'], 'backends')
 
     if bld.env['build_target']== 'mingw':
diff --git a/libs/panners/1in2out/wscript b/libs/panners/1in2out/wscript
index 6b7a04a7d9..2c1d9f1293 100644
--- a/libs/panners/1in2out/wscript
+++ b/libs/panners/1in2out/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_PAN1IN2OUT_LIB_VERSION = '1.0.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -28,7 +22,6 @@ def build(bld):
     obj.name         = 'libardour_pan1in2out'
     obj.target       = 'pan1in2out'
     obj.use          = 'libardour libardour_cp libpbd'
-    obj.vnum         = LIBARDOUR_PAN1IN2OUT_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'panners')
 
 def shutdown():
diff --git a/libs/panners/2in2out/wscript b/libs/panners/2in2out/wscript
index f71f514b73..bd82526801 100644
--- a/libs/panners/2in2out/wscript
+++ b/libs/panners/2in2out/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_PAN2IN2OUT_LIB_VERSION = '1.0.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -28,7 +22,6 @@ def build(bld):
     obj.name         = 'libardour_pan2in2out'
     obj.target       = 'pan2in2out'
     obj.use          = 'libardour libardour_cp libpbd'
-    obj.vnum         = LIBARDOUR_PAN2IN2OUT_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'panners')
 
 def shutdown():
diff --git a/libs/panners/stereobalance/wscript b/libs/panners/stereobalance/wscript
index 25ab9e5835..72b7c46f58 100644
--- a/libs/panners/stereobalance/wscript
+++ b/libs/panners/stereobalance/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_PAN2IN2OUT_LIB_VERSION = '1.0.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -28,7 +22,6 @@ def build(bld):
     obj.name         = 'libardour_panbalance'
     obj.target       = 'panbalance'
     obj.use          = 'libardour libardour_cp libpbd'
-    obj.vnum         = LIBARDOUR_PAN2IN2OUT_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'panners')
 
 def shutdown():
diff --git a/libs/panners/vbap/wscript b/libs/panners/vbap/wscript
index c2bb313e27..bb2cb5bc39 100644
--- a/libs/panners/vbap/wscript
+++ b/libs/panners/vbap/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_PANVBAP_LIB_VERSION = '1.0.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -28,7 +22,6 @@ def build(bld):
     obj.name         = 'libardour_panvbap'
     obj.target       = 'panvbap'
     obj.use          = 'libardour libardour_cp libpbd'
-    obj.vnum         = LIBARDOUR_PANVBAP_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'panners')
 
 def shutdown():
diff --git a/libs/surfaces/control_protocol/wscript b/libs/surfaces/control_protocol/wscript
index 1c4235bd14..b3fcf236e4 100644
--- a/libs/surfaces/control_protocol/wscript
+++ b/libs/surfaces/control_protocol/wscript
@@ -2,13 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-APPNAME = 'libardour_cp'
-LIBARDOUR_CP_LIB_VERSION = '4.1.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -40,7 +33,6 @@ def build(bld):
     obj.name         = 'libardour_cp'
     obj.target       = 'ardourcp'
     obj.use          = 'libardour'
-    obj.vnum         = LIBARDOUR_CP_LIB_VERSION
     obj.install_path = bld.env['LIBDIR']
 
 def shutdown():
diff --git a/libs/surfaces/frontier/wscript b/libs/surfaces/frontier/wscript
index 614c6f2841..db9ffe76d1 100644
--- a/libs/surfaces/frontier/wscript
+++ b/libs/surfaces/frontier/wscript
@@ -2,19 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Version of this package (even if built as a child)
-LIBSURFACES_VERSION = '4.1.0'
-
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBSURFACES_LIB_VERSION = '4.1.0'
-
-# Variables for 'waf dist'
-APPNAME = 'libsurfaces'
-VERSION = LIBSURFACES_VERSION
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -40,7 +27,6 @@ def build(bld):
     obj.name         = 'libgeneric_midi'
     obj.target       = 'generic_midi'
     obj.use          = 'libardour libardourcp'
-    obj.vnum         = LIBSURFACES_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'surfaces')
 
 def shutdown():
diff --git a/libs/surfaces/generic_midi/wscript b/libs/surfaces/generic_midi/wscript
index b083423eec..39a6814c6a 100644
--- a/libs/surfaces/generic_midi/wscript
+++ b/libs/surfaces/generic_midi/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_GENERIC_MIDI_LIB_VERSION = '4.1.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -37,7 +31,6 @@ def build(bld):
     obj.target       = 'ardour_generic_midi'
     obj.uselib       = 'GTKMM GTK GDK'
     obj.use          = 'libardour libardour_cp libgtkmm2ext libpbd'
-    obj.vnum         = LIBARDOUR_GENERIC_MIDI_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'surfaces')
 
 def shutdown():
diff --git a/libs/surfaces/mackie/wscript b/libs/surfaces/mackie/wscript
index fd3e9552be..7657d76887 100644
--- a/libs/surfaces/mackie/wscript
+++ b/libs/surfaces/mackie/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_MCP_LIB_VERSION = '4.1.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -49,7 +43,6 @@ def build(bld):
     obj.target       = 'ardour_mcp'
     obj.uselib       = 'GTKMM'
     obj.use          = 'libardour libardour_cp libgtkmm2ext'
-    obj.vnum         = LIBARDOUR_MCP_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'surfaces')
 
 def shutdown():
diff --git a/libs/surfaces/osc/wscript b/libs/surfaces/osc/wscript
index fa4918a8f1..d6e8ff2f7c 100644
--- a/libs/surfaces/osc/wscript
+++ b/libs/surfaces/osc/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_OSC_LIB_VERSION = '4.1.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -34,7 +28,6 @@ def build(bld):
     obj.target       = 'ardour_osc'
     obj.uselib       = ' LO '
     obj.use          = 'libardour libardour_cp libpbd'
-    obj.vnum         = LIBARDOUR_OSC_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'surfaces')
 
 def shutdown():
diff --git a/libs/surfaces/tranzport/wscript b/libs/surfaces/tranzport/wscript
index 6cbafb5173..21711149d7 100644
--- a/libs/surfaces/tranzport/wscript
+++ b/libs/surfaces/tranzport/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_TRANZPORT_LIB_VERSION = '4.1.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -45,7 +39,6 @@ def build(bld):
     obj.name         = 'libardour_tranzport'
     obj.target       = 'ardour_tranzport'
     obj.use          = 'libardour libardour_cp'
-    obj.vnum         = LIBARDOUR_TRANZPORT_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'surfaces')
 
 def shutdown():
diff --git a/libs/surfaces/wiimote/wscript b/libs/surfaces/wiimote/wscript
index b3ea4404a8..03d01635a1 100644
--- a/libs/surfaces/wiimote/wscript
+++ b/libs/surfaces/wiimote/wscript
@@ -2,12 +2,6 @@
 from waflib.extras import autowaf as autowaf
 import os
 
-# Library version (UNIX style major, minor, micro)
-# major increment <=> incompatible changes
-# minor increment <=> compatible changes (additions)
-# micro increment <=> no interface changes
-LIBARDOUR_WIIMOTE_LIB_VERSION = '4.1.0'
-
 # Mandatory variables
 top = '.'
 out = 'build'
@@ -32,7 +26,6 @@ def build(bld):
     obj.target       = 'ardour_wiimote'
     obj.uselib       = 'GTKMM CWIID'
     obj.use          = 'libardour libardour_cp libgtkmm2ext'
-    obj.vnum         = LIBARDOUR_WIIMOTE_LIB_VERSION
     obj.install_path = os.path.join(bld.env['LIBDIR'], 'surfaces')
 
 def shutdown():