--- cfmu/Makefile.am.link	2012-11-21 23:17:54.000000000 +0100
+++ cfmu/Makefile.am	2013-03-04 21:59:09.720212393 +0100
@@ -7,26 +7,26 @@
 cfmuvalidate_SOURCES = cfmuvalidate.cc cfmuvalidate.hh
 cfmuvalidate_LDADD = ../src/libvfrnav.a @LIBS@ @GTKMM_LIBS@ @GLIBMM_LIBS@ @GIOMM_LIBS@ \
 	@PILOTLINK_LIBS@ @BOOST_LIBS@ @SQLITE3X_LIBS@ @WEBKITGTK_LIBS@
-cfmuvalidate_LDFLAGS = @BOOST_LDFLAGS@
+cfmuvalidate_LDFLAGS = @BOOST_LDFLAGS@ -pthread
 
 cfmuvalidateserver_SOURCES = cfmuvalidateserver.cc cfmuvalidateserver.hh
 cfmuvalidateserver_LDADD = ../src/libvfrnav.a @LIBS@ @GTKMM_LIBS@ @GLIBMM_LIBS@ @GIOMM_LIBS@ \
 	@PILOTLINK_LIBS@ @BOOST_LIBS@ @SQLITE3X_LIBS@ @WEBKITGTK_LIBS@
-cfmuvalidateserver_LDFLAGS = @BOOST_LDFLAGS@
+cfmuvalidateserver_LDFLAGS = @BOOST_LDFLAGS@ -pthread
 
 libcfmuautoroute_a_SOURCES = cfmuautorouteproxy.cc cfmuautorouteproxy.hh
 
 cfmuautoroute_SOURCES = autoroute.cc cfmuautoroute.cc cfmuautoroute.hh tfr.cc tfr.hh
 cfmuautoroute_LDADD = libcfmuautoroute.a ../src/libvfrnav.a @LIBS@ @GTKMM_LIBS@ @GLIBMM_LIBS@ \
 	@GIOMM_LIBS@ @PILOTLINK_LIBS@ @BOOST_LIBS@ @SQLITE3X_LIBS@ @LIBXMLPP_LIBS@ @GEOS_LIBS@ @CLIPPER_LIBS@
-cfmuautoroute_LDFLAGS = @BOOST_LDFLAGS@ @GEOS_LDFLAGS@ @CLIPPER_LDFLAGS@
+cfmuautoroute_LDFLAGS = @BOOST_LDFLAGS@ @GEOS_LDFLAGS@ @CLIPPER_LDFLAGS@ -pthread
 
 libcheckfpl_a_SOURCES = tfrproxy.cc tfrproxy.hh
 
 checkfplan_SOURCES = checkfpl.cc tfr.cc tfr.hh
 checkfplan_LDADD = libcheckfpl.a ../src/libvfrnav.a @LIBS@ @GTKMM_LIBS@ @GLIBMM_LIBS@ \
 	@GIOMM_LIBS@ @PILOTLINK_LIBS@ @BOOST_LIBS@ @SQLITE3X_LIBS@ @LIBXMLPP_LIBS@ @GEOS_LIBS@ @CLIPPER_LIBS@
-checkfplan_LDFLAGS = @BOOST_LDFLAGS@ @GEOS_LDFLAGS@ @CLIPPER_LDFLAGS@
+checkfplan_LDFLAGS = @BOOST_LDFLAGS@ @GEOS_LDFLAGS@ @CLIPPER_LDFLAGS@ -pthread
 
 AM_CPPFLAGS = @CXXFLAGS@ @GTKMM_CFLAGS@ @GLIBMM_CFLAGS@ @GIOMM_CFLAGS@ @SQLITE_CFLAGS@ \
 	@SQLITE3X_CFLAGS@ @ZFSTREAM_CFLAGS@ @PILOTLINK_CFLAGS@ @BOOST_CPPFLAGS@ \