initial buildroot for linux 5.15

package/nettle/0001-disable-testsuite-examples.patch

@@ -0,0 +1,20 @@
+Makefile: disable testsuite and example
+
+We do not need them in the context of Buildroot.
+
+Also, they break for a shared-only build (but it's fixed in patch 0001).
+
+Signed-off-by:  "Yann E. MORIN" <yann.morin.1998@free.fr>
+
+diff -durN nettle-2.7.1.orig/Makefile.in nettle-2.7.1/Makefile.in
+--- nettle-2.7.1.orig/Makefile.in	2013-05-28 16:21:54.000000000 +0200
++++ nettle-2.7.1/Makefile.in	2014-12-12 19:57:12.499805574 +0100
+@@ -19,7 +19,7 @@
+ 
+ FAT_TEST_LIST = @FAT_TEST_LIST@
+ 
+-SUBDIRS = tools testsuite examples
++SUBDIRS = tools
+ 
+ include config.make
+ 

package/nettle/Config.in

@@ -0,0 +1,10 @@
+config BR2_PACKAGE_NETTLE
+	bool "nettle"
+	select BR2_PACKAGE_GMP
+	help
+	  Nettle is a cryptographic library that is designed to fit
+	  easily in more or less any context: In crypto toolkits for
+	  object-oriented languages, in applications like LSH or
+	  GNUPG, or even in kernel space
+
+	  https://www.lysator.liu.se/~nisse/nettle/

package/nettle/nettle.hash

@@ -0,0 +1,6 @@
+# Locally calculated after checking pgp signature
+# https://ftp.gnu.org/gnu/nettle/nettle-3.7.3.tar.gz.sig
+sha256  661f5eb03f048a3b924c3a8ad2515d4068e40f67e774e8a26827658007e3bcf0  nettle-3.7.3.tar.gz
+# Locally calculated
+sha256  a853c2ffec17057872340eee242ae4d96cbf2b520ae27d903e1b2fef1a5f9d1c  COPYING.LESSERv3
+sha256  8177f97513213526df2cf6184d8ff986c675afb514d4e68a404010521b880643  COPYINGv2

package/nettle/nettle.mk

@@ -0,0 +1,29 @@
+################################################################################
+#
+# nettle
+#
+################################################################################
+
+NETTLE_VERSION = 3.7.3
+NETTLE_SITE = http://www.lysator.liu.se/~nisse/archive
+NETTLE_DEPENDENCIES = gmp
+NETTLE_INSTALL_STAGING = YES
+NETTLE_LICENSE = Dual GPL-2.0+/LGPL-3.0+
+NETTLE_LICENSE_FILES = COPYING.LESSERv3 COPYINGv2
+NETTLE_CPE_ID_VENDOR = nettle_project
+# don't include openssl support for (unused) examples as it has problems
+# with static linking
+NETTLE_CONF_OPTS = --disable-openssl
+
+# ARM assembly requires v6+ ISA
+ifeq ($(BR2_ARM_CPU_ARMV4)$(BR2_ARM_CPU_ARMV5)$(BR2_ARM_CPU_ARMV7M),y)
+NETTLE_CONF_OPTS += --disable-assembler
+endif
+
+ifeq ($(BR2_ARM_CPU_HAS_NEON),y)
+NETTLE_CONF_OPTS += --enable-arm-neon
+else
+NETTLE_CONF_OPTS += --disable-arm-neon
+endif
+
+$(eval $(autotools-package))