Add depends for compiling

configure.ac.in

@@ -65,6 +65,8 @@ XDT_I18N([@LINGUAS@])
 dnl ***********************************
 dnl *** Check for required packages ***
 dnl ***********************************
+XDT_CHECK_LIBX11_REQUIRE()
+XDT_CHECK_PACKAGE([LIBXMU], [xmu], [1.1.2])
 XDT_CHECK_PACKAGE([GTK], [gtk+-2.0], [2.14.0])
 XDT_CHECK_PACKAGE([CAIRO], [cairo], [1.5.0])
 
@@ -166,4 +168,3 @@ fi
 echo "* Target OS:     $target_os ($ac_os_implementation)"
 echo "* Debug:         $enable_debug"
 echo
-

src/Makefile.am

@@ -9,11 +9,15 @@ bin_PROGRAMS =								\
 xfce4_taskmanager_CFLAGS =						\
 	$(CAIRO_CFLAGS)							\
 	$(GKSU_CFLAGS)							\
+	$(LIBX11_CFLAGS) \
+	$(LIBXMU_CFLAGS) \
 	$(NULL)
 
 xfce4_taskmanager_LDADD = 						\
 	$(CAIRO_LIBS)							\
 	$(GKSU_LIBS)							\
+	$(LIBX11_LIBS) \
+	$(LIBXMU_LIBS) \
 	$(NULL)
 
 xfce4_taskmanager_SOURCES =						\
@@ -73,4 +77,3 @@ settings-dialog-gtk3_ui.h: settings-dialog-gtk3.ui
 endif
 
 EXTRA_DIST = process-window.ui settings-dialog.ui process-window-gtk3.ui settings-dialog-gtk3.ui
-