--- client/Makefile.am.orig	2012-06-23 11:41:21.035798194 +0200
+++ client/Makefile.am	2012-06-23 11:39:41.197878359 +0200
@@ -82,7 +82,7 @@
 if OS_DARWIN
 boinc_client_LDFLAGS += -Wl,-flat_namespace,-undefined,dynamic_lookup
 endif
-boinc_client_LDADD = $(LIBBOINC) $(LIBBOINC_CRYPT) $(BOINC_EXTRA_LIBS) $(PTHREAD_LIBS)
+boinc_client_LDADD = $(LIBBOINC) $(LIBBOINC_CRYPT) $(BOINC_EXTRA_LIBS) $(PTHREAD_LIBS) -lX11
 
 boinc_clientdir = $(bindir)