liburcu: Add support for aarch64

Bring over a patch from OpenEmbedded to treat aarch64 like arm in the build
process, which allows the build to succeed.

Signed-off-by: Ben Shelton <benjamin.h.shelton@intel.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/liburcu/0002-support-aarch64.patch

@@ -0,0 +1,21 @@
+libucru: recognize aarch64
+
+Make the same as "arm" internally.
+
+Upstream-Status: Pending
+
+Signed-off-by: joe.slater@windriver.com
+[moved to buildroot from openembedded-core]
+Signed-off-by: Ben Shelton <benjamin.h.shelton@intel.com>
+
+
+--- a/configure.ac
++++ b/configure.ac
+@@ -77,6 +77,7 @@ AS_CASE([$host_cpu],
+ 	[alpha*], [ARCHTYPE="alpha"],
+ 	[ia64], [ARCHTYPE="gcc"],
+ 	[arm*], [ARCHTYPE="arm"],
++	[aarch64], [ARCHTYPE="arm"],
+ 	[mips*], [ARCHTYPE="mips"],
+ 	[tile*], [ARCHTYPE="gcc"],
+ 	[ARCHTYPE="unknown"]

package/liburcu/Config.in

@@ -1,6 +1,6 @@
 config BR2_PACKAGE_LIBURCU
 	bool "liburcu"
-	depends on BR2_arm || BR2_armeb || BR2_i386 || BR2_powerpc || BR2_x86_64
+	depends on BR2_arm || BR2_armeb || BR2_aarch64 || BR2_i386 || BR2_powerpc || BR2_x86_64
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # liburcu/gcc-4.8.x bug
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	help
@@ -18,7 +18,7 @@ config BR2_PACKAGE_LIBURCU
 	  http://lttng.org/urcu
 
 comment "liburcu needs a toolchain w/ threads"
-	depends on BR2_arm || BR2_armeb || BR2_i386 || BR2_powerpc || BR2_x86_64
+	depends on BR2_arm || BR2_armeb || BR2_aarch64 || BR2_i386 || BR2_powerpc || BR2_x86_64
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # liburcu/gcc-4.8.x bug
 	depends on !BR2_TOOLCHAIN_HAS_THREADS
 

package/liburcu/liburcu.mk

@@ -10,6 +10,7 @@ LIBURCU_SOURCE = userspace-rcu-$(LIBURCU_VERSION).tar.bz2
 LIBURCU_LICENSE = LGPLv2.1+ for the library; MIT-like license for few source files listed in LICENSE; GPLv2+ for test; GPLv3 for few *.m4 files
 LIBURCU_LICENSE_FILES = lgpl-2.1.txt lgpl-relicensing.txt gpl-2.0.txt LICENSE
 
+LIBURCU_AUTORECONF = YES
 LIBURCU_INSTALL_STAGING = YES
 
 $(eval $(autotools-package))