thrift: disable for ARC

thrift uses the __sync_fetch_and_add() atomic primitive that is not available
for ARC.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/thrift/Config.in

@@ -4,6 +4,7 @@ config BR2_PACKAGE_THRIFT
 	depends on BR2_USE_WCHAR
 	depends on BR2_LARGEFILE
 	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on !BR2_arc # atomic builtins
 	select BR2_PACKAGE_BOOST
 	select BR2_PACKAGE_LIBEVENT
 	select BR2_PACKAGE_OPENSSL
@@ -21,3 +22,4 @@ config BR2_PACKAGE_THRIFT
 comment "thrift needs a toolchain w/ C++, largefile, wchar, threads"
 	depends on !BR2_LARGEFILE || !BR2_USE_WCHAR || \
 		!BR2_TOOLCHAIN_HAS_THREADS || !BR2_INSTALL_LIBSTDCPP
+	depends on !BR2_arc