Index: src/skins/native/Makefile.am
===================================================================
--- src/skins/native/Makefile.am	(revision 243)
+++ src/skins/native/Makefile.am	(working copy)
@@ -1,6 +1,6 @@
 lib_LTLIBRARIES = libnative.la
 
-libnative_la_LDFLAGS = -module -version-info 0:0:0
+libnative_la_LDFLAGS = -module -version-info 0:0:0 -pthread
 
 libnative_la_SOURCES = \
 	alarm.c \
Index: src/skins/posix/Makefile.am
===================================================================
--- src/skins/posix/Makefile.am	(revision 243)
+++ src/skins/posix/Makefile.am	(working copy)
@@ -2,7 +2,7 @@
 
 lib_LTLIBRARIES = libpthread_rt.la
 
-libpthread_rt_la_LDFLAGS = -module -version-info 0:0:0
+libpthread_rt_la_LDFLAGS = -module -version-info 0:0:0 -lpthread
 
 libpthread_rt_la_SOURCES = \
 	init.c \