libjuice: add package

A lightweight ICE (RFC 8445) library with STUN, for peer-to-peer UDP
hole punching. Needed by comrade; also usable on its own.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

libs/libjuice/Makefile

@@ -0,0 +1,55 @@
+#
+# Copyright (C) 2026 Daniel Golle <daniel@makrotopia.org>
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=libjuice
+PKG_VERSION:=1.7.3
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/paullouisageneau/libjuice/tar.gz/v$(PKG_VERSION)?
+PKG_HASH:=86e075ca4732882746b6d5733ff1b6090f942e5750df58630b191b5f00f30010
+
+PKG_MAINTAINER:=Daniel Golle <daniel@makrotopia.org>
+PKG_LICENSE:=MPL-2.0
+PKG_LICENSE_FILES:=LICENSE
+
+PKG_BUILD_FLAGS:=gc-sections lto
+CMAKE_INSTALL:=1
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/libjuice
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=UDP Interactive Connectivity Establishment (ICE) library
+  URL:=https://github.com/paullouisageneau/libjuice
+  ABI_VERSION:=$(PKG_VERSION)
+  DEPENDS:=+libpthread
+endef
+
+define Package/libjuice/description
+  libjuice ("JUICE is a UDP Interactive Connectivity Establishment library")
+  is a lightweight implementation of ICE (RFC 8445) in C, allowing to open
+  a peer-to-peer UDP connection between two hosts behind NAT by hole
+  punching, using STUN (RFC 8489) to gather reflexive candidates and
+  optionally TURN (RFC 8656) to relay. It also provides a minimal
+  STUN/TURN server implementation.
+endef
+
+CMAKE_OPTIONS += \
+	-DNO_TESTS=ON \
+	-DUSE_NETTLE=OFF
+
+define Package/libjuice/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libjuice.so.* $(1)/usr/lib/
+endef
+
+$(eval $(call BuildPackage,libjuice))