diff --git a/ChangeLog b/ChangeLog
index 81e5074a01..45a9ba17d7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2001-12-01  Daniel Egger  <degger@fhm.edu>
+
+	* app/core/Makefile.am
+	* libgimp/Makefile.am
+	* libgimpbase/Makefile.am
+	* libgimpcolor/Makefile.am
+	* libgimpmath/Makefile.am
+	* libgimpwidgets/Makefile.am
+	* modules/Makefile.am
+	* themes/Default/Makefile.am: Don't try to concatenate something
+	to a variable not used before but simply assign it. Shuts up
+	annoying automake warnings for me.
+
 2001-12-01  Abel Cheung  <maddog@linux.org.hk>
 
         * tips/{Makefile.am,makefile.mingw}: Added gimp_tips.zh_TW.txt
diff --git a/app/core/Makefile.am b/app/core/Makefile.am
index 2d2dd8a17c..0dde15c276 100644
--- a/app/core/Makefile.am
+++ b/app/core/Makefile.am
@@ -167,7 +167,7 @@ EXTRA_DIST = \
 #
 # setup autogeneration dependancies
 gen_sources = xgen-gmh xgen-gmc
-CLEANFILES += $(gen_sources)
+CLEANFILES = $(gen_sources)
 
 $(srcdir)/stamp-gimpmarshal.h: $(srcdir)/gimpmarshal.list gimpmarshal.h
 	glib-genmarshal --prefix=gimp_marshal $(srcdir)/gimpmarshal.list --header >> xgen-gmh \
diff --git a/libgimp/Makefile.am b/libgimp/Makefile.am
index 6a7f42201d..e86eb2d0d4 100644
--- a/libgimp/Makefile.am
+++ b/libgimp/Makefile.am
@@ -169,7 +169,7 @@ gimpinclude_HEADERS = @STRIP_BEGIN@ \
 	gimpmenu.h			\
 @STRIP_END@
 
-EXTRA_HEADERS +=
+EXTRA_HEADERS =
 
 libgimp_1_3_la_LDFLAGS = @STRIP_BEGIN@ \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)	\
diff --git a/libgimpbase/Makefile.am b/libgimpbase/Makefile.am
index f1ea805698..78d8bee83c 100644
--- a/libgimpbase/Makefile.am
+++ b/libgimpbase/Makefile.am
@@ -62,7 +62,7 @@ libgimpbaseinclude_HEADERS = @STRIP_BEGIN@ \
 	gimpversion.h		\
 @STRIP_END@
 
-EXTRA_HEADERS +=
+EXTRA_HEADERS =
 
 libgimpbase_1_3_la_LDFLAGS = @STRIP_BEGIN@ \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)	\
diff --git a/libgimpcolor/Makefile.am b/libgimpcolor/Makefile.am
index 3b95df0142..c3f0ba08f3 100644
--- a/libgimpcolor/Makefile.am
+++ b/libgimpcolor/Makefile.am
@@ -49,7 +49,7 @@ libgimpcolorinclude_HEADERS = @STRIP_BEGIN@ \
 	gimprgb.h			\
 @STRIP_END@
 
-EXTRA_HEADERS +=
+EXTRA_HEADERS =
 
 libgimpcolor_1_3_la_LDFLAGS = @STRIP_BEGIN@ \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)	\
diff --git a/libgimpmath/Makefile.am b/libgimpmath/Makefile.am
index 535825e957..b5a4325bc1 100644
--- a/libgimpmath/Makefile.am
+++ b/libgimpmath/Makefile.am
@@ -40,7 +40,7 @@ libgimpmathinclude_HEADERS = @STRIP_BEGIN@ \
 	gimpvector.h	\
 @STRIP_END@
 
-EXTRA_HEADERS +=
+EXTRA_HEADERS =
 
 libgimpmath_1_3_la_LDFLAGS = @STRIP_BEGIN@ \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)	\
diff --git a/libgimpwidgets/Makefile.am b/libgimpwidgets/Makefile.am
index 8717182d8a..668ac6814f 100644
--- a/libgimpwidgets/Makefile.am
+++ b/libgimpwidgets/Makefile.am
@@ -77,7 +77,7 @@ libgimpwidgetsinclude_HEADERS = @STRIP_BEGIN@ \
 	gimpunitmenu.h		\
 @STRIP_END@
 
-EXTRA_HEADERS +=
+EXTRA_HEADERS =
 
 libgimpwidgets_1_3_la_LDFLAGS = @STRIP_BEGIN@ \
 	-version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)	\
diff --git a/modules/Makefile.am b/modules/Makefile.am
index 8d9774044c..fa6cd0edf8 100644
--- a/modules/Makefile.am
+++ b/modules/Makefile.am
@@ -28,7 +28,7 @@ libexec_LTLIBRARIES = @STRIP_BEGIN@ \
 ##	libcolorsel_gtk.la		\
 ##	libcolorsel_water.la		\
 
-EXTRA_LTLIBRARIES +=
+EXTRA_LTLIBRARIES =
 
 ## libcolorsel_gtk_la_SOURCES = colorsel_gtk.c
 ## libcolorsel_gtk_la_LDFLAGS = -avoid-version -module
diff --git a/themes/Default/Makefile.am b/themes/Default/Makefile.am
index 945a23c162..6429073f50 100644
--- a/themes/Default/Makefile.am
+++ b/themes/Default/Makefile.am
@@ -149,7 +149,7 @@ WILBER_VARIABLES = @STRIP_BEGIN@ \
 @STRIP_END@
 
 noinst_DATA = gimp-stock-pixbufs.h gimp-wilber-pixbufs.h
-CLEANFILES += $(noinst_DATA)
+CLEANFILES = $(noinst_DATA)
 
 gimp-stock-pixbufs.h: $(STOCK_IMAGES) $(STOCK_TOOL_IMAGES)
 	gdk-pixbuf-csource --raw --build-list $(STOCK_VARIABLES) $(STOCK_TOOL_VARIABLES) >$(srcdir)/gimp-stock-pixbufs.h