diff -Nurd -x'*~' howl-1.0.0.orig/configure howl-1.0.0/configure
--- howl-1.0.0.orig/configure	2005-05-19 18:29:51.000000000 -0400
+++ howl-1.0.0/configure	2005-09-07 14:46:05.000000000 -0400
@@ -8513,7 +8513,7 @@
 		LIB_SUBDIRS="howl"
 		HOWL_LIB_SUBDIRS=MacOSX
 		HOWL_LIB_OBJECTS='macosx_salt.lo macosx_socket.lo macosx_time.lo macosx_mdns_stub.lo'
-		PLATFORM_LIBS="-framework CoreFoundation"
+		PLATFORM_LIBS="-Wl,-framework,CoreFoundation"
 		HOWL_MAN_PAGES=
 		;;
 	*-*-linux*)
diff -aur howl-1.0.0/src/lib/howl/MacOSX/macosx_salt.c howl-1.0.0.patched/src/lib/howl/MacOSX/macosx_salt.c
--- howl-1.0.0/src/lib/howl/MacOSX/macosx_salt.c	2004-07-29 08:18:36.000000000 +0200
+++ howl-1.0.0.patched/src/lib/howl/MacOSX/macosx_salt.c	2005-06-11 20:10:56.000000000 +0200
@@ -66,6 +66,7 @@
 				char			**	argv)
 {
 	sw_result err = SW_OKAY;
+	pthread_mutexattr_t 	attrs;
 
 	*salt = (sw_salt) sw_malloc(sizeof(struct _sw_salt));
 	err = sw_translate_error(*salt, SW_E_MEM);
@@ -76,6 +77,8 @@
 	(*salt)->m_sockets.m_prev	=	NULL;
   	(*salt)->m_step				=	SW_FALSE;
 
+	pthread_mutexattr_settype(&attrs, PTHREAD_MUTEX_RECURSIVE);
+	pthread_mutex_init(&(*salt)->m_mutex, &attrs);
 	signal(SIGPIPE, SIG_IGN);
 
 exit:
@@ -180,6 +183,22 @@
 	return SW_OKAY;
 }
 
+sw_result
+sw_salt_lock(
+				sw_salt self)
+{
+	sw_assert(self);
+	pthread_mutex_lock(&self->m_mutex);
+}
+
+sw_result
+sw_salt_unlock(
+				sw_salt self)
+{
+	sw_assert(self);
+	pthread_mutex_unlock(&self->m_mutex);
+}
+
 
 sw_result
 sw_salt_step(
diff -aur howl-1.0.0/src/lib/howl/MacOSX/macosx_salt.h howl-1.0.0.patched/src/lib/howl/MacOSX/macosx_salt.h
--- howl-1.0.0/src/lib/howl/MacOSX/macosx_salt.h	2004-02-11 02:38:52.000000000 +0100
+++ howl-1.0.0.patched/src/lib/howl/MacOSX/macosx_salt.h	2005-06-11 20:13:21.000000000 +0200
@@ -33,7 +33,7 @@
 #include "macosx_socket.h"
 #include "macosx_time.h"
 #include <sys/errno.h>
-
+#include <pthread.h>
 
 #ifdef __cplusplus
 extern "C"
@@ -46,6 +46,7 @@
 	CFRunLoopRef					m_cf_run_loop;
 	struct _sw_macosx_socket	m_sockets;
 	struct _sw_macosx_timer		m_timers;
+	pthread_mutex_t			m_mutex;
 	sw_bool							m_step;
 };
 
diff -Nurd -x'*~' howl-1.0.0.orig/src/lib/howl/Makefile.in howl-1.0.0/src/lib/howl/Makefile.in
--- howl-1.0.0.orig/src/lib/howl/Makefile.in	2005-05-19 18:29:28.000000000 -0400
+++ howl-1.0.0/src/lib/howl/Makefile.in	2006-08-08 15:42:58.000000000 -0400
@@ -105,7 +105,7 @@
 libhowl_la_SOURCES = $(sources_h) $(sources_c)
 libhowl_la_LDFLAGS = -version-info $(HOWL_LIBRARY_VERSION)
 EXTRA_libhowl_la_SOURCES = MacOSX/macosx_salt.c MacOSX/macosx_socket.c MacOSX/macosx_time.c MacOSX/macosx_mdns_stub.c Posix/posix_salt.c Posix/posix_socket.c Posix/posix_time.c Posix/posix_signal.c Posix/posix_interface.c NotOSX/notosx_mdns_stub.c
-libhowl_la_LIBADD = @HOWL_LIB_OBJECTS@
+libhowl_la_LIBADD = @HOWL_LIB_OBJECTS@ $(PLATFORM_LIBS)
 libhowl_la_DEPENDENCIES = @HOWL_LIB_OBJECTS@
 subdir = src/lib/howl
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs