initial buildroot for linux 5.15

package/libnetconf2/Config.in

@@ -0,0 +1,15 @@
+config BR2_PACKAGE_LIBNETCONF2
+	bool "libnetconf2"
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_STATIC_LIBS
+	depends on BR2_USE_MMU
+	select BR2_PACKAGE_LIBYANG
+	help
+	  libnetconf2 is a NETCONF library in C intended for building
+	  NETCONF clients and servers.
+
+	  https://github.com/CESNET/libnetconf2
+
+comment "libnetconf2 needs a toolchain w/ threads, dynamic libraray"
+	depends on BR2_USE_MMU
+	depends on BR2_STATIC_LIBS || !BR2_TOOLCHAIN_HAS_THREADS

package/libnetconf2/libnetconf2.hash

@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  66139fc9e68aa89c82235f4135dba9e44f5db663541279c14c74131e22b7f571  libnetconf2-1.1.43.tar.gz
+sha256  bd962ab457c8a8cb8faaaa36c11484680f3c9a47dbc336507817ae8935384064  LICENSE

package/libnetconf2/libnetconf2.mk

@@ -0,0 +1,40 @@
+################################################################################
+#
+# libnetconf2
+#
+################################################################################
+
+LIBNETCONF2_VERSION = 1.1.43
+LIBNETCONF2_SITE = $(call github,CESNET,libnetconf2,v$(LIBNETCONF2_VERSION))
+LIBNETCONF2_INSTALL_STAGING = YES
+LIBNETCONF2_LICENSE = BSD-3-Clause
+LIBNETCONF2_LICENSE_FILES = LICENSE
+LIBNETCONF2_DEPENDENCIES = libyang
+HOST_LIBNETCONF2_DEPENDENCIES = host-libyang
+
+LIBNETCONF2_CONF_OPTS = \
+	-DENABLE_BUILD_TESTS=OFF \
+	-DENABLE_VALGRIND_TESTS=OFF
+
+ifeq ($(BR2_PACKAGE_LIBSSH_SERVER), y)
+LIBNETCONF2_CONF_OPTS += -DENABLE_SSH=ON
+LIBNETCONF2_DEPENDENCIES += libssh
+else
+LIBNETCONF2_CONF_OPTS += -DENABLE_SSH=OFF
+endif
+
+ifeq ($(BR2_PACKAGE_OPENSSL), y)
+LIBNETCONF2_CONF_OPTS += -DENABLE_TLS=ON
+LIBNETCONF2_DEPENDENCIES += openssl
+else
+LIBNETCONF2_CONF_OPTS += -DENABLE_TLS=OFF
+endif
+
+HOST_LIBNETCONF2_CONF_OPTS = \
+	-DENABLE_BUILD_TESTS=OFF \
+	-DENABLE_VALGRIND_TESTS=OFF \
+	-DENABLE_SSH=OFF \
+	-DENABLE_TLS=OFF
+
+$(eval $(cmake-package))
+$(eval $(host-cmake-package))