Fix VPATH and out-of-tree builds


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3984 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/unix/vncviewer/Makefile.am b/unix/vncviewer/Makefile.am
index e5e0190..9690015 100644
--- a/unix/vncviewer/Makefile.am
+++ b/unix/vncviewer/Makefile.am
@@ -12,10 +12,10 @@
 	-I$(top_srcdir)/unix/tx -I$(top_srcdir)/intl \
 	-DLOCALEDIR=\"$(localedir)\" @X_CFLAGS@
 
-vncviewer_LDADD = $(top_srcdir)/unix/tx/libtx.la \
-	$(top_srcdir)/common/rfb/librfb.la \
-	$(top_srcdir)/common/network/libnetwork.la \
-	$(top_srcdir)/common/rdr/librdr.la \
+vncviewer_LDADD = $(top_builddir)/unix/tx/libtx.la \
+	$(top_builddir)/common/rfb/librfb.la \
+	$(top_builddir)/common/network/libnetwork.la \
+	$(top_builddir)/common/rdr/librdr.la \
 	@X_PRE_LIBS@ @X_LIBS@ -lXext -lX11 @X_EXTRA_LIBS@ # @LIBINTL@
 
 EXTRA_DIST = vncviewer.man