diff --git a/samples/html/about/Makefile.in b/samples/html/about/Makefile.in
index 4911c00df7..02461c9726 100644
--- a/samples/html/about/Makefile.in
+++ b/samples/html/about/Makefile.in
@@ -18,7 +18,9 @@ DATAFILES = data/about.htm data/logo.png
 
 PROGRAM=about
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/html/help/Makefile.in b/samples/html/help/Makefile.in
index 6189ec355e..1f43668538 100644
--- a/samples/html/help/Makefile.in
+++ b/samples/html/help/Makefile.in
@@ -22,7 +22,9 @@ DATAFILES = helpfiles/Index.hhk helpfiles/book1.htm helpfiles/book2.htm \
 
 PROGRAM=help
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/html/helpview/Makefile.in b/samples/html/helpview/Makefile.in
index f07afcab8c..f744e9f562 100644
--- a/samples/html/helpview/Makefile.in
+++ b/samples/html/helpview/Makefile.in
@@ -19,7 +19,9 @@ DATAFILES = test.zip
 
 PROGRAM=helpview
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/html/printing/Makefile.in b/samples/html/printing/Makefile.in
index a976563353..01761a8fe4 100644
--- a/samples/html/printing/Makefile.in
+++ b/samples/html/printing/Makefile.in
@@ -17,7 +17,9 @@ DATAFILES = test.htm
 
 PROGRAM=printing
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/html/test/Makefile.in b/samples/html/test/Makefile.in
index 0ce0382be1..f22949fe09 100644
--- a/samples/html/test/Makefile.in
+++ b/samples/html/test/Makefile.in
@@ -15,10 +15,12 @@ program_dir = samples/html/test
 
 PROGRAM=test
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 DATAFILES=f.html fft.html imagemap.htm imagemap.png pic.png pic2.bmp \
     tables.htm test.htm i18n.gif 8859_2.htm cp1250.htm
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/html/virtual/Makefile.in b/samples/html/virtual/Makefile.in
index ecba39d17f..34544f563e 100644
--- a/samples/html/virtual/Makefile.in
+++ b/samples/html/virtual/Makefile.in
@@ -15,9 +15,11 @@ program_dir = samples/html/virtual
 
 PROGRAM=virtual
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 DATAFILES=start.htm
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/html/widget/Makefile.in b/samples/html/widget/Makefile.in
index b6872a473c..8c9d675ed2 100644
--- a/samples/html/widget/Makefile.in
+++ b/samples/html/widget/Makefile.in
@@ -15,9 +15,11 @@ program_dir = samples/html/widget
 
 PROGRAM=widget
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 DATAFILES=start.htm
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/html/zip/Makefile.in b/samples/html/zip/Makefile.in
index 25041a8926..c88cd40105 100644
--- a/samples/html/zip/Makefile.in
+++ b/samples/html/zip/Makefile.in
@@ -15,9 +15,11 @@ program_dir = samples/html/zip
 
 PROGRAM=zip
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 DATAFILES=pages.zip start.htm
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/opengl/cube/Makefile.in b/samples/opengl/cube/Makefile.in
index 99fbe8b50a..952ae87275 100644
--- a/samples/opengl/cube/Makefile.in
+++ b/samples/opengl/cube/Makefile.in
@@ -17,7 +17,9 @@ PROGRAM=cube
 
 LIBRARIES=$(top_builddir)/lib/@WX_TARGET_LIBRARY_GL@ $(OPENGLLIBS)
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
\ No newline at end of file
diff --git a/samples/opengl/isosurf/Makefile.in b/samples/opengl/isosurf/Makefile.in
index 90891fbdb7..f4aa205b1f 100644
--- a/samples/opengl/isosurf/Makefile.in
+++ b/samples/opengl/isosurf/Makefile.in
@@ -19,7 +19,9 @@ PROGRAM=isosurf
 
 LIBRARIES=$(top_builddir)/lib/@WX_TARGET_LIBRARY_GL@ $(OPENGLLIBS)
 
-OBJECTS=$(PROGRAM).o
+OBJECTS =$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/samples/opengl/penguin/Makefile.in b/samples/opengl/penguin/Makefile.in
index 5b838e308d..4c911c4041 100644
--- a/samples/opengl/penguin/Makefile.in
+++ b/samples/opengl/penguin/Makefile.in
@@ -19,7 +19,9 @@ PROGRAM=penguin
 
 LIBRARIES=$(top_builddir)/lib/@WX_TARGET_LIBRARY_GL@ $(OPENGLLIBS)
 
-OBJECTS=$(PROGRAM).o lw.o trackball.o
+OBJECTS =$(PROGRAM).o lw.o trackball.o
+DEPFILES=$(PROGRAM).d lw.d trackball.d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/utils/HelpGen/src/Makefile.in b/utils/HelpGen/src/Makefile.in
index f416f20904..ae2b0f3a8c 100644
--- a/utils/HelpGen/src/Makefile.in
+++ b/utils/HelpGen/src/Makefile.in
@@ -13,6 +13,10 @@ PROGRAM=HelpGen
 OBJECTS = HelpGen.o cjparser.o docripper.o ifcontext.o markup.o \
           scriptbinder.o sourcepainter.o srcparser.o \
           wx_extra_imps.o
+DEPFILES= HelpGen.d cjparser.d docripper.d ifcontext.d markup.d \
+          scriptbinder.d sourcepainter.d srcparser.d \
+          wx_extra_imps.d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/utils/dialoged/src/Makefile.in b/utils/dialoged/src/Makefile.in
index e67ec92be1..b6894097ff 100644
--- a/utils/dialoged/src/Makefile.in
+++ b/utils/dialoged/src/Makefile.in
@@ -16,6 +16,8 @@ program_dir = utils/dialoged/src
 PROGRAM=DialogEd
 
 OBJECTS = dialoged.o dlghndlr.o edlist.o edtree.o reseditr.o reswrite.o symbtabl.o winprop.o winstyle.o
+DEPFILES= dialoged.d dlghndlr.d edlist.d edtree.d reseditr.d reswrite.d symbtabl.d winprop.d winstyle.d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)
diff --git a/utils/hhp2cached/Makefile.in b/utils/hhp2cached/Makefile.in
index f35b44e651..38cef34494 100644
--- a/utils/hhp2cached/Makefile.in
+++ b/utils/hhp2cached/Makefile.in
@@ -9,7 +9,9 @@ PROGRAM=hhp2cached
 
 
 OBJECTS=$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../src/makeprog.env
 
+-include $(DEPFILES)
 
diff --git a/utils/makegen/Makefile.in b/utils/makegen/Makefile.in
index 7b279b8a66..ba91161cba 100644
--- a/utils/makegen/Makefile.in
+++ b/utils/makegen/Makefile.in
@@ -16,7 +16,9 @@ DATAFILES = templates/Makefile.in templates/makefile.b32 \
             templates/makefile.wat
 
 OBJECTS=$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../src/makeprog.env
 
+-include $(DEPFILES)
 
diff --git a/utils/makegen/templates/Makefile.in b/utils/makegen/templates/Makefile.in
index 8983b1bdc5..248fd4f13b 100644
--- a/utils/makegen/templates/Makefile.in
+++ b/utils/makegen/templates/Makefile.in
@@ -8,6 +8,8 @@ program_dir = samples/#NAME
 PROGRAM=#NAME
 
 OBJECTS=$(PROGRAM).o
+DEPFILES=$(PROGRAM).d
 
 include ../../src/makeprog.env
 
+-include $DEPFILES)
diff --git a/utils/tex2rtf/src/Makefile.in b/utils/tex2rtf/src/Makefile.in
index 075c80ce30..d9d0de5405 100644
--- a/utils/tex2rtf/src/Makefile.in
+++ b/utils/tex2rtf/src/Makefile.in
@@ -19,6 +19,8 @@ program_dir = utils/tex2rtf/src
 PROGRAM=tex2rtf
 
 OBJECTS = tex2rtf.o tex2any.o texutils.o rtfutils.o xlputils.o htmlutil.o readshg.o table.o
+DEPFILES=tex2rtf.d tex2any.d texutils.d rtfutils.d xlputils.d htmlutil.d readshg.d table.d
 
 include ../../../src/makeprog.env
 
+-include $(DEPFILES)