diff --git a/development/cproto/cproto.SlackBuild b/development/cproto/cproto.SlackBuild
index 6b7cb055d5..bfc52bfb26 100644
--- a/development/cproto/cproto.SlackBuild
+++ b/development/cproto/cproto.SlackBuild
@@ -6,10 +6,12 @@
 
 # Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.
 
+# 20211129 bkw: update for v4.7t.
+
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=cproto
-VERSION=${VERSION:-4.7s}
+VERSION=${VERSION:-4.7t}
 BUILD=${BUILD:-1}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
@@ -65,6 +67,7 @@ CXXFLAGS="$SLKCFLAGS -Wl,-s" \
   --sysconfdir=/etc \
   --localstatedir=/var \
   --mandir=/usr/man \
+  --enable-llib \
   --build=$ARCH-slackware-linux
 
 make
diff --git a/development/cproto/cproto.info b/development/cproto/cproto.info
index 09c281c893..0abe51f369 100644
--- a/development/cproto/cproto.info
+++ b/development/cproto/cproto.info
@@ -1,8 +1,8 @@
 PRGNAM="cproto"
-VERSION="4.7s"
+VERSION="4.7t"
 HOMEPAGE="https://invisible-island.net/cproto/"
-DOWNLOAD="https://invisible-mirror.net/archives/cproto/cproto-4.7s.tgz"
-MD5SUM="f1c7dfb63b934dc73f1177d0d1917867"
+DOWNLOAD="https://invisible-mirror.net/archives/cproto/cproto-4.7t.tgz"
+MD5SUM="0768a573ffa1ef143ad339c7680114c2"
 DOWNLOAD_x86_64=""
 MD5SUM_x86_64=""
 REQUIRES=""