Proper fix for gnutls.pc generation by ripping out 'zlib' part

from configure as it was originally submitted by Fumiyuki Shimizu in
ports/157647.

Pointy hat to:		novel

security/gnutls/Makefile

@@ -35,9 +35,6 @@ MANCOMPRESSED=	no
 
 .include <bsd.port.pre.mk>
 
-post-configure:
-	@${REINPLACE_CMD} -e 's|zlib||' ${WRKSRC}/lib/gnutls.pc
-
 .if (defined(WITH_LIBTASN1) || exists(${LOCALBASE}/lib/libtasn1.so.4)) && !defined(WITHOUT_LIBTASN1)
 LIB_DEPENDS+=	tasn1.4:${PORTSDIR}/security/libtasn1
 .else

security/gnutls/files/patch-lib-configure

@@ -0,0 +1,16 @@
+--- lib/configure.orig	2011-06-06 15:37:23.000000000 +0400
++++ lib/configure	2011-06-06 15:40:46.000000000 +0400
+@@ -17201,13 +17201,6 @@
+ $as_echo "no" >&6; }
+ fi
+ 
+-if test x$ac_zlib != xno; then
+-  if test x$GNUTLS_REQUIRES_PRIVATE = x; then
+-    GNUTLS_REQUIRES_PRIVATE="Requires.private: zlib"
+-  else
+-    GNUTLS_REQUIRES_PRIVATE="$GNUTLS_REQUIRES_PRIVATE , zlib"
+-  fi
+-fi
+ 
+ 
+