- add libtool usage

- bump

Problem found by sthen@

ok sthen@, ajacoutot@

math/ntl/Makefile

@@ -1,8 +1,9 @@
-# $OpenBSD: Makefile,v 1.12 2009/05/22 09:03:24 benoit Exp $
+# $OpenBSD: Makefile,v 1.13 2009/08/10 21:00:25 benoit Exp $
 
 COMMENT =	Victor Shoup's Number Theory Library
 
 DISTNAME =	ntl-5.5.1
+PKGNAME =	${DISTNAME}p0
 SHARED_LIBS =	ntl	0.0	# .0.1
 CATEGORIES =	math
 
@@ -24,6 +25,8 @@ LIB_DEPENDS =		gmp.>=7::devel/gmp
 
 MAKE_FILE =		makefile
 
+USE_LIBTOOL =		Yes
+
 CONFIGURE_STYLE = 	simple
 CONFIGURE_ARGS =	CC="${CC}" CFLAGS="${CFLAGS}" \
 			CXX="${CXX}" CXXFLAGS="${CXXFLAGS}" \