initial buildroot for linux 5.15

package/libpcap/Config.in

@@ -0,0 +1,8 @@
+config BR2_PACKAGE_LIBPCAP
+	bool "libpcap"
+	select BR2_PACKAGE_BLUEZ5_UTILS_HEADERS if BR2_PACKAGE_BLUEZ5_UTILS
+	help
+	  A system-independent library for user-level network packet
+	  capture.
+
+	  http://www.tcpdump.org/

package/libpcap/libpcap.hash

@@ -0,0 +1,6 @@
+# Locally calculated after checking pgp signature
+# https://www.tcpdump.org/release/libpcap-1.10.1.tar.gz.sig
+sha256  ed285f4accaf05344f90975757b3dbfe772ba41d1c401c2648b7fa45b711bdd4  libpcap-1.10.1.tar.gz
+
+# Hash for license file:
+sha256  8a54594d257e14a5260ac770f1633516cb51e3fc28c40136ce2697014eda7afd  LICENSE

package/libpcap/libpcap.mk

@@ -0,0 +1,52 @@
+################################################################################
+#
+# libpcap
+#
+################################################################################
+
+LIBPCAP_VERSION = 1.10.1
+LIBPCAP_SITE = https://www.tcpdump.org/release
+LIBPCAP_LICENSE = BSD-3-Clause
+LIBPCAP_LICENSE_FILES = LICENSE
+LIBPCAP_CPE_ID_VENDOR = tcpdump
+LIBPCAP_INSTALL_STAGING = YES
+LIBPCAP_DEPENDENCIES = host-flex host-bison host-pkgconf
+
+# ac_cv_prog_cc_c99 is required for BR2_USE_WCHAR=n because the C99 test
+# provided by autoconf relies on wchar_t.
+LIBPCAP_CONF_ENV = \
+	ac_cv_header_linux_wireless_h=yes \
+	ac_cv_prog_cc_c99=-std=gnu99 \
+	CFLAGS="$(LIBPCAP_CFLAGS)"
+LIBPCAP_CFLAGS = $(TARGET_CFLAGS)
+LIBPCAP_CONF_OPTS = --disable-yydebug --with-pcap=linux --without-dag \
+	--without-dpdk
+# Disable dbus to break recursive dependencies
+LIBPCAP_CONF_OPTS += --disable-dbus
+LIBPCAP_CONFIG_SCRIPTS = pcap-config
+
+# Omit -rpath from pcap-config output
+define LIBPCAP_CONFIG_REMOVE_RPATH
+	$(SED) 's/^V_RPATH_OPT=.*/V_RPATH_OPT=""/g' $(@D)/pcap-config
+endef
+LIBPCAP_POST_BUILD_HOOKS = LIBPCAP_CONFIG_REMOVE_RPATH
+
+ifeq ($(BR2_PACKAGE_BLUEZ5_UTILS_HEADERS),y)
+LIBPCAP_DEPENDENCIES += bluez5_utils-headers
+else
+LIBPCAP_CONF_OPTS += --disable-bluetooth
+endif
+
+ifeq ($(BR2_PACKAGE_LIBNL),y)
+LIBPCAP_DEPENDENCIES += libnl
+LIBPCAP_CONF_OPTS += --with-libnl
+else
+LIBPCAP_CONF_OPTS += --without-libnl
+endif
+
+# microblaze/sparc/sparc64 need -fPIC instead of -fpic
+ifeq ($(BR2_microblaze)$(BR2_sparc)$(BR2_sparc64),y)
+LIBPCAP_CFLAGS += -fPIC
+endif
+
+$(eval $(autotools-package))