shadowsocks-libev: add dependency on sync builtins

libcork (bundled inside shadowsocks-libev) uses the __sync builtins
for atomic operations: the 4-byte variant on 32 bits platforms and the
8-byte variant on 64-bits platform.

Fixes:

  http://autobuild.buildroot.net/results/552b09ffe951c429422529c895f4c3ec723cf5ab

Signed-off-by: Min Xu <xuminready@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

diff --git a/package/shadowsocks-libev/Config.in b/package/shadowsocks-libev/Config.in
index 56914e8e9dd47323cb2ed7a7a6cf596297feb7f2..f58abdbcb139153ea4e014a35681fae04af5afc6 100644 (file)
--- a/package/shadowsocks-libev/Config.in
+++ b/package/shadowsocks-libev/Config.in
@@ -1,5 +1,7 @@
 config BR2_PACKAGE_SHADOWSOCKS_LIBEV
        bool "shadowsocks-libev"
+       depends on BR2_TOOLCHAIN_HAS_SYNC_4 # for libcork
+       depends on BR2_TOOLCHAIN_HAS_SYNC_8 || !BR2_ARCH_IS_64 # for libcork
        depends on BR2_TOOLCHAIN_HAS_THREADS
        depends on BR2_USE_MMU # fork()
        select BR2_PACKAGE_C_ARES
@@ -14,5 +16,7 @@ config BR2_PACKAGE_SHADOWSOCKS_LIBEV
          https://github.com/shadowsocks/shadowsocks-libev
 
 comment "shadowsocks-libev needs a toolchain w/ threads"
+       depends on BR2_TOOLCHAIN_HAS_SYNC_4
+       depends on BR2_TOOLCHAIN_HAS_SYNC_8 || !BR2_ARCH_IS_64
        depends on BR2_USE_MMU
        depends on !BR2_TOOLCHAIN_HAS_THREADS