update buildroot to 2017.02.11

bsp/buildroot-2017.02.11/package/protobuf/0001-configure.ac-check-if-libatomic-is-needed.patch

@@ -0,0 +1,34 @@
+From f020fe05a20dfcd16cd7df833dcf3cdeef770538 Mon Sep 17 00:00:00 2001
+From: Carlos Santos <casantos@datacom.ind.br>
+Date: Thu, 11 Feb 2016 10:58:35 -0200
+Subject: [PATCH 2/2] configure.ac: check if libatomic is needed
+
+Compilation of protobuf for PowerPC and SPARC may fail due to missing
+references to __atomic_fetch_add_4 and __atomic_compare_exchange_4.
+
+The __atomic_*() intrinsics for all sizes are provided by libatomic when
+gcc is >= 4.8. This can be achieved by adding this to configure.ac:
+
+    AC_SEARCH_LIBS([__atomic_fetch_add_4], [atomic])
+
+Signed-off-by: Carlos Santos <casantos@datacom.ind.br>
+---
+ configure.ac | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/configure.ac b/configure.ac
+index c07067c..88d4a0d 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -160,6 +160,8 @@ AM_CONDITIONAL([HAVE_PTHREAD], [test "x$acx_pthread_ok" = "xyes"])
+ # We still keep this for improving pbconfig.h for unsupported platforms.
+ AC_CXX_STL_HASH
+ 
++AC_SEARCH_LIBS([__atomic_load_4], [atomic])
++
+ case "$target_os" in
+   mingw* | cygwin* | win*)
+     ;;
+-- 
+2.5.0
+

bsp/buildroot-2017.02.11/package/protobuf/Config.in

@@ -0,0 +1,47 @@
+# See src/google/protobuf/stubs/platform_macros.h for supported archs.
+#
+# On PowerPC, the __atomic_*() built-ins for 1-byte, 2-byte and 4-byte
+# types are available built-in. However, the __atomic_*() built-ins for
+# 8-byte types is implemented via libatomic, so only available since gcc
+# 4.8.
+#
+# In Buildroot, to simplify things, we've decided to simply require gcc
+# 4.8 as soon as the architectures has at least one __atomic_*() built-in
+# variant that requires libatomic.
+#
+# Since protobuf most likely only uses the 1, 2 and 4-byte variants, it
+# *could* technically build with gcc 4.7. This is probably not a big deal,
+# and we can live with requiring gcc 4.8 on PowerPC to build protobuf. 
+#
+# The SPARC64 build fails due to a missing definition of Atomic64. This
+# has been fixed on the master branch but the build still breaks due to
+# undefined references to internal NoBarrier_Atomic*() functions.
+#
+# host-protobuf only builds on certain architectures
+config BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
+	bool
+	default y if BR2_arm
+	default y if BR2_i386
+	default y if BR2_mipsel
+	default y if BR2_x86_64
+	default y if BR2_TOOLCHAIN_HAS_ATOMIC
+	depends on !BR2_sparc64 # missing definition of Atomic64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_USE_MMU # fork()
+
+config BR2_PACKAGE_PROTOBUF
+	bool "protobuf"
+	depends on BR2_INSTALL_LIBSTDCPP
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS
+	depends on !BR2_STATIC_LIBS
+	help
+	  Protocol buffers are Google's language-neutral, platform-neutral,
+	  extensible mechanism for serializing structured data.
+
+	  https://developers.google.com/protocol-buffers
+
+comment "protobuf needs a toolchain w/ C++, threads, dynamic library"
+	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_HAS_THREADS \
+		|| BR2_STATIC_LIBS
+	depends on BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS

bsp/buildroot-2017.02.11/package/protobuf/protobuf.hash

@@ -0,0 +1,2 @@
+# Locally calculated
+sha256 f5b3563f118f1d3d6e001705fa7082e8fc3bda50038ac3dff787650795734146 protobuf-v3.0.0.tar.gz

bsp/buildroot-2017.02.11/package/protobuf/protobuf.mk

@@ -0,0 +1,28 @@
+################################################################################
+#
+# protobuf
+#
+################################################################################
+
+# When bumping this package, make sure to also verify if the
+# python-protobuf package still works, as they share the same
+# version/site variables.
+PROTOBUF_VERSION = v3.0.0
+PROTOBUF_SITE = $(call github,google,protobuf,$(PROTOBUF_VERSION))
+PROTOBUF_LICENSE = BSD-3c
+PROTOBUF_LICENSE_FILES = LICENSE
+# no configure script
+PROTOBUF_AUTORECONF = YES
+
+# N.B. Need to use host protoc during cross compilation.
+PROTOBUF_DEPENDENCIES = host-protobuf
+PROTOBUF_CONF_OPTS = --with-protoc=$(HOST_DIR)/usr/bin/protoc
+
+PROTOBUF_INSTALL_STAGING = YES
+
+ifeq ($(BR2_PACKAGE_ZLIB),y)
+PROTOBUF_DEPENDENCIES += zlib
+endif
+
+$(eval $(autotools-package))
+$(eval $(host-autotools-package))