x11-plugins/wmnet: depend on net-libs/ppp-defs on musl

Closes: https://bugs.gentoo.org/713466
Signed-off-by: Mike Gilbert <floppym@gentoo.org>

x11-plugins/wmnet/wmnet-1.06-r2.ebuild

@@ -1,4 +1,4 @@
-# Copyright 1999-2021 Gentoo Authors
+# Copyright 1999-2022 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -17,7 +17,8 @@ IUSE=""
 
 RDEPEND="x11-libs/libX11
 	x11-libs/libXext"
-DEPEND="${RDEPEND}"
+DEPEND="${RDEPEND}
+	elibc_musl? ( net-libs/ppp-defs )"
 BDEPEND="
 	x11-base/xorg-proto
 	>=x11-misc/imake-1.0.8-r1