diff -ur -x changelog -x '*~' ../debian/rules debian/rules
--- ../debian/rules	2016-07-26 21:17:51.000000000 +0200
+++ debian/rules	2016-07-26 21:33:17.161764000 +0200
@@ -12,6 +12,7 @@
 PACKAGE = xdm
 
 include debian/xsfbs/xsfbs.mk
+include /usr/share/dpkg/vendor.mk
 
 confflags += \
 	--prefix=/usr \
@@ -22,13 +23,19 @@
 	--with-xdmscriptdir=\$${xdmconfigdir} \
 	--with-authdir=/var/lib/xdm \
 	--with-pixmapdir=/usr/share/X11/xdm/pixmaps \
-	--with-color-pixmap=ubuntu.xpm \
-	--with-bw-pixmap=ubuntu.xpm \
 	--disable-xdm-auth \
 	--with-xft \
 	--disable-silent-rules \
 	$(NULL)
 
+ifeq ($(DEB_VENDOR), Debian)
+	confflags += --with-color-pixmap=debian.xpm --with-bw-pixmap=debianbw.xpm
+else ifeq ($(DEB_VENDOR), Ubuntu)
+	confflags += --with-color-pixmap=ubuntu.xpm --with-bw-pixmap=ubuntu.xpm
+else
+	confflags += --with-color-pixmap=xorg.xpm --with-bw-pixmap=xorg.xpm
+endif
+
 configure_vars = $(shell DEB_BUILD_MAINT_OPTIONS="hardening=+pie,+bindnow" DEB_CFLAGS_MAINT_APPEND="-Wall" dpkg-buildflags --export=configure)
 
 ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))