diff -Nru asterisk-1.4.18.org/acinclude.m4 asterisk-1.4.18/acinclude.m4
--- asterisk-1.4.18.org/acinclude.m4	2007-07-25 19:14:14.000000000 +0200
+++ asterisk-1.4.19.1/acinclude.m4	2008-03-02 19:40:27.000000000 +0100
@@ -508,6 +508,7 @@
 				;;
 		esac
 		AC_MSG_RESULT(${OPENH323_BUILD})
+		OPENH323_SUFFIX="n_s"
 
 		AC_SUBST([OPENH323_SUFFIX])
 		AC_SUBST([OPENH323_BUILD])
diff -Nru asterisk-1.4.18.org/configure.ac asterisk-1.4.18/configure.ac
--- asterisk-1.4.18.org/configure.ac	2008-01-16 02:13:27.000000000 +0100
+++ asterisk-1.4.19.1/configure.ac	2008-03-02 19:40:27.000000000 +0100
@@ -835,7 +835,7 @@
 	if test "${HAS_PWLIB:-unset}" != "unset"; then
 		AST_CHECK_OPENH323_PLATFORM()
 
-		PLATFORM_PWLIB="pt_${PWLIB_PLATFORM}_r"
+		PLATFORM_PWLIB="pt_${PWLIB_PLATFORM}_r_s"
 
 		AST_CHECK_PWLIB_BUILD([PWLib], [PWLIB],
 			[Define if your system has the PWLib libraries.],