diff --git a/Makefile.in b/Makefile.in
index 9e8532020a..2fc924336e 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -431,7 +431,6 @@ ALL_BASE_HEADERS =  \
 	wx/zipstrm.h \
 	wx/zstream.h \
 	wx/meta/convertible.h \
-	wx/meta/defs.h \
 	wx/meta/int2type.h \
 	$(BASE_PLATFORM_HDR) \
 	wx/fs_inet.h \
@@ -579,7 +578,6 @@ ALL_PORTS_BASE_HEADERS =  \
 	wx/zipstrm.h \
 	wx/zstream.h \
 	wx/meta/convertible.h \
-	wx/meta/defs.h \
 	wx/meta/int2type.h \
 	wx/private/fdiodispatcher.h \
 	wx/private/selectdispatcher.h \
diff --git a/build/bakefiles/files.bkl b/build/bakefiles/files.bkl
index d70640b0b0..9bbb8c0fb5 100644
--- a/build/bakefiles/files.bkl
+++ b/build/bakefiles/files.bkl
@@ -555,7 +555,6 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     wx/zipstrm.h
     wx/zstream.h
     wx/meta/convertible.h
-    wx/meta/defs.h
     wx/meta/int2type.h
 </set>
 
diff --git a/build/msw/wx_base.dsp b/build/msw/wx_base.dsp
index ecc98ccb05..7f9491ed48 100644
--- a/build/msw/wx_base.dsp
+++ b/build/msw/wx_base.dsp
@@ -1123,10 +1123,6 @@ SOURCE=..\..\include\wx\debug.h
 # End Source File
 # Begin Source File
 
-SOURCE=..\..\include\wx\meta\defs.h
-# End Source File
-# Begin Source File
-
 SOURCE=..\..\include\wx\defs.h
 # End Source File
 # Begin Source File
diff --git a/wxGTK.spec b/wxGTK.spec
index 303b98c0d5..556c40ca81 100644
--- a/wxGTK.spec
+++ b/wxGTK.spec
@@ -332,7 +332,6 @@ wx/xtistrm.h
 wx/zipstrm.h
 wx/zstream.h
 wx/meta/convertible.h
-wx/meta/defs.h
 wx/meta/int2type.h
 wx/private/fdiodispatcher.h
 wx/private/selectdispatcher.h
diff --git a/wxMotif.spec b/wxMotif.spec
index 7db04c7b94..05f379eacd 100644
--- a/wxMotif.spec
+++ b/wxMotif.spec
@@ -237,7 +237,6 @@ wx/xtistrm.h
 wx/zipstrm.h
 wx/zstream.h
 wx/meta/convertible.h
-wx/meta/defs.h
 wx/meta/int2type.h
 wx/private/fdiodispatcher.h
 wx/private/selectdispatcher.h
diff --git a/wxX11.spec b/wxX11.spec
index 40e29acada..02b44f699a 100644
--- a/wxX11.spec
+++ b/wxX11.spec
@@ -261,7 +261,6 @@ wx/xtistrm.h
 wx/zipstrm.h
 wx/zstream.h
 wx/meta/convertible.h
-wx/meta/defs.h
 wx/meta/int2type.h
 wx/private/fdiodispatcher.h
 wx/private/selectdispatcher.h