diff --git a/WINGs/Makefile.am b/WINGs/Makefile.am
index d3c9a13..96f6d79 100644
--- a/WINGs/Makefile.am
+++ b/WINGs/Makefile.am
@@ -29,12 +29,12 @@ libWINGs_la_SOURCES = 	\
 	configuration.c \
 	dragcommon.c \
 	dragcommon_x11.c \
-	dragdestination.c \
-	dragsource.c \
+	dragdestination_x11.c \
+	dragsource_x11.c \
 	rgb.h \
-	selection.c \
-	wappresource.c \
-	wballoon.c \
+	selection_x11.c \
+	wappresource_x11.c \
+	wballoon_x11.c \
 	wbox.c \
 	wbrowser.c \
 	wbutton.c \
@@ -55,7 +55,7 @@ libWINGs_la_SOURCES = 	\
 	wfontpanel.c \
 	widgets.c \
 	widgets_x11.c \
-	winputmethod.c \
+	winputmethod_x11.c \
 	wlabel.c \
 	wlist.c \
 	wmenuitem.c \
diff --git a/WINGs/dragdestination.c b/WINGs/dragdestination_x11.c
similarity index 100%
rename from WINGs/dragdestination.c
rename to WINGs/dragdestination_x11.c
diff --git a/WINGs/dragsource.c b/WINGs/dragsource_x11.c
similarity index 100%
rename from WINGs/dragsource.c
rename to WINGs/dragsource_x11.c
diff --git a/WINGs/selection.c b/WINGs/selection_x11.c
similarity index 100%
rename from WINGs/selection.c
rename to WINGs/selection_x11.c
diff --git a/WINGs/wappresource.c b/WINGs/wappresource_x11.c
similarity index 100%
rename from WINGs/wappresource.c
rename to WINGs/wappresource_x11.c
diff --git a/WINGs/wballoon.c b/WINGs/wballoon_x11.c
similarity index 100%
rename from WINGs/wballoon.c
rename to WINGs/wballoon_x11.c
diff --git a/WINGs/winputmethod.c b/WINGs/winputmethod_x11.c
similarity index 100%
rename from WINGs/winputmethod.c
rename to WINGs/winputmethod_x11.c