Bump Buildroot to 2021.02-rc3 (#1260)

* Rebase patches to Buildroot 2021.02-rc3

* Update Buildroot to 2021.02-rc3

* Declare Kernel headers to be Linux version 5.10 (since they are, and new Buildroot knows about 5.10)

buildroot/package/atftp/0001-Makefile.am-link-against-libpthread-for-atftp.patch

@@ -1,26 +0,0 @@
-Makefile.am: link against libpthread for atftp
-
-atftp client needs to link against libpthread as static builds do not
-work otherwise.
-
-Signed-off-by: Ryan Barnett <ryan.barnett@rockwellcollins.com>
----
- Makefile.am | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/Makefile.am b/Makefile.am
-index e59592f..200829a 100644
---- a/Makefile.am
-+++ b/Makefile.am
-@@ -28,7 +28,7 @@ noinst_HEADERS   = argz.h logger.h options.h stats.h tftp.h tftp_def.h tftp_io.h
- 		   tftpd.h tftpd_pcre.h tftpd_mtftp.h
- 
- bin_PROGRAMS     = atftp
--atftp_LDADD      = $(LIBTERMCAP) $(LIBREADLINE)
-+atftp_LDADD      = $(LIBTERMCAP) $(LIBREADLINE) $(LIBPTHREAD)
- atftp_SOURCES    = tftp.c tftp_io.c logger.c options.c tftp_def.c tftp_file.c \
- 		   argz.c tftp_mtftp.c
- 
--- 
-1.9.1
-

buildroot/package/atftp/0002-argz.h-fix-musl-compile-add-missing-defines.patch

@@ -1,42 +0,0 @@
-From 543e67919f5cacf309ac88ab091331e41af4224b Mon Sep 17 00:00:00 2001
-From: Peter Seiderer <ps.report@gmx.net>
-Date: Thu, 16 Apr 2015 22:41:57 +0200
-Subject: [PATCH] argz.h: fix musl compile (add missing defines)
-
-Add __THROW, __BEGIN_DECLS, __END_DECLS and __attribute_pure__ defines.
-
-Signed-off-by: Peter Seiderer <ps.report@gmx.net>
----
- argz.h | 16 ++++++++++++++++
- 1 file changed, 16 insertions(+)
-
-diff --git a/argz.h b/argz.h
-index 582be55..bdf9f62 100644
---- a/argz.h
-+++ b/argz.h
-@@ -48,6 +48,22 @@
- # define __const const
- #endif
- 
-+#ifndef __THROW
-+# define __THROW
-+#endif
-+
-+#ifndef __BEGIN_DECLS
-+# define __BEGIN_DECLS
-+#endif
-+
-+#ifndef __END_DECLS
-+# define __END_DECLS
-+#endif
-+
-+#ifndef __attribute_pure__
-+# define __attribute_pure__
-+#endif
-+
- #ifndef __error_t_defined
- typedef int error_t;
- #endif
--- 
-2.1.4
-

buildroot/package/atftp/0003-tftp.h-tftpd.h-fix-musl-compile-missing-include.patch

@@ -1,40 +0,0 @@
-From 77e399899d9d7297d23c321811b628febdf0fd92 Mon Sep 17 00:00:00 2001
-From: Peter Seiderer <ps.report@gmx.net>
-Date: Thu, 16 Apr 2015 22:43:49 +0200
-Subject: [PATCH] tftp.h/tftpd.h: fix musl compile (missing include)
-
-Add sys/types.h include for u_char typedef.
-
-Signed-off-by: Peter Seiderer <ps.report@gmx.net>
----
- tftp.h  | 1 +
- tftpd.h | 1 +
- 2 files changed, 2 insertions(+)
-
-diff --git a/tftp.h b/tftp.h
-index 12bd6aa..32a3f63 100644
---- a/tftp.h
-+++ b/tftp.h
-@@ -19,6 +19,7 @@
- 
- #include <sys/time.h>
- #include <sys/times.h>
-+#include <sys/types.h>
- #include "tftp_def.h"
- #include "config.h"
- 
-diff --git a/tftpd.h b/tftpd.h
-index 945065e..60d3a49 100644
---- a/tftpd.h
-+++ b/tftpd.h
-@@ -20,6 +20,7 @@
- #include <pthread.h>
- #include <arpa/tftp.h>
- #include <arpa/inet.h>
-+#include <sys/types.h>
- #include "tftp_io.h"
- 
- /*
--- 
-2.1.4
-

buildroot/package/atftp/atftp.hash

@@ -1,3 +1,3 @@
 # Locally computed
-sha256 1ad080674e9f974217b3a703e7356c6c8446dc5e7b2014d0d06e1bfaa11b5041  atftp-0.7.2.tar.gz
-sha256 32b1062f7da84967e7019d01ab805935caa7ab7321a7ced0e30ebe75e5df1670  LICENSE
+sha256  d3c9cd0d971dfc786d7a5f4055c35d4e66aafc8102ac03473ef225bdf7edb26a  atftp-0.7.4.tar.gz
+sha256  32b1062f7da84967e7019d01ab805935caa7ab7321a7ced0e30ebe75e5df1670  LICENSE

buildroot/package/atftp/atftp.mk

@@ -4,12 +4,11 @@
 #
 ################################################################################
 
-ATFTP_VERSION = 0.7.2
+ATFTP_VERSION = 0.7.4
 ATFTP_SITE = http://sourceforge.net/projects/atftp/files
 ATFTP_LICENSE = GPL-2.0+
 ATFTP_LICENSE_FILES = LICENSE
-# 0001-Makefile.am-link-against-libpthread-for-atftp.patch patches Makefile.am
-ATFTP_AUTORECONF = YES
+ATFTP_CPE_ID_VALID = YES
 ATFTP_CONF_OPTS = --disable-libwrap --disable-mtftp
 # For static we need to explicitly link against libpthread
 ATFTP_LIBS = -lpthread