diff -ur a/bfast/Makefile.am b/bfast/Makefile.am
--- a/bfast/Makefile.am	2010-04-29 05:08:36.000000000 +0100
+++ b/bfast/Makefile.am	2010-06-07 15:51:19.670619444 +0100
@@ -41,4 +41,4 @@
 				aflib.c aflib.h \
 				Main.c Main.h
 
-bfast_LDADD = 
+bfast_LDADD = 			-lpthread
diff -ur a/bfast/Makefile.in b/bfast/Makefile.in
--- a/bfast/Makefile.in	2010-05-11 21:17:18.000000000 +0100
+++ b/bfast/Makefile.in	2010-06-07 16:02:17.909567013 +0100
@@ -204,7 +204,7 @@
 				aflib.c aflib.h \
 				Main.c Main.h
 
-bfast_LDADD = 
+bfast_LDADD = -lpthread
 all: all-am
 
 .SUFFIXES:
diff -ur a/butil/Makefile.in b/butil/Makefile.in
--- a/butil/Makefile.in	2010-05-11 21:17:18.000000000 +0100
+++ b/butil/Makefile.in	2010-06-07 16:02:55.221556736 +0100
@@ -152,7 +152,7 @@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
-LDFLAGS = @LDFLAGS@
+LDFLAGS = @LDFLAGS@ -lpthread
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
 LTLIBOBJS = @LTLIBOBJS@
diff -ur a/scripts/Makefile.in b/scripts/Makefile.in
--- a/scripts/Makefile.in	2010-05-11 21:17:18.000000000 +0100
+++ b/scripts/Makefile.in	2010-06-07 16:06:49.134560520 +0100
@@ -90,7 +90,7 @@
 INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
-LDFLAGS = @LDFLAGS@
+LDFLAGS = @LDFLAGS@ -lpthread
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
 LTLIBOBJS = @LTLIBOBJS@