package/libuv: needs gcc >= 4.9

libuv unconditionally uses stdatomic since
https://github.com/libuv/libuv/commit/2f33980a9141bd49cb2c34361854355b23b1e6fc
resulting in the following build failure with gcc < 4.9 since bump to
version 1.45.0 in commit 21764235cb7f7fb767ea4b5d825e39c711aee235:

In file included from src/fs-poll.c:23:0:
src/uv-common.h:41:24: fatal error: stdatomic.h: No such file or directory
 # include <stdatomic.h>
                        ^

Fixes:
 - http://autobuild.buildroot.org/results/6b9ce25ba7e5c5602313d533f460f8829f767f81

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle <arnout@mind.be>

package/bind/Config.in

@@ -4,6 +4,7 @@ config BR2_PACKAGE_BIND
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # libuv
 	depends on !BR2_STATIC_LIBS # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	select BR2_PACKAGE_LIBUV
 	select BR2_PACKAGE_OPENSSL
 	help
@@ -43,7 +44,8 @@ config BR2_PACKAGE_BIND_TOOLS
 
 endif
 
-comment "bind needs a toolchain w/ NPTL, dynamic library"
+comment "bind needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9

package/cmake/Config.in

@@ -14,7 +14,7 @@ config BR2_PACKAGE_CMAKE
 config BR2_PACKAGE_CMAKE_CTEST
 	bool "ctest"
 	depends on BR2_PACKAGE_CMAKE_ARCH_SUPPORTS
-	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 # from jsoncpp
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # jsoncpp, libuv
 	depends on BR2_USE_WCHAR # libarchive
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on !BR2_STATIC_LIBS
@@ -40,10 +40,10 @@ config BR2_PACKAGE_CMAKE_CTEST
 
 	  http://www.cmake.org/
 
-comment "ctest needs a toolchain w/ C++, wchar, dynamic library, gcc >= 4.7, NPTL"
+comment "ctest needs a toolchain w/ C++, wchar, dynamic library, gcc >= 4.9, NPTL"
 	depends on BR2_PACKAGE_CMAKE_ARCH_SUPPORTS
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_USE_WCHAR || \
-		BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 || \
+		BR2_STATIC_LIBS || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 || \
 		!BR2_TOOLCHAIN_HAS_THREADS_NPTL

package/libuv/Config.in

@@ -4,13 +4,15 @@ config BR2_PACKAGE_LIBUV
 	depends on BR2_USE_MMU # fork()
 	depends on !BR2_STATIC_LIBS
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # C11/stdatomic.h
 	help
 	  libuv is a multi-platform support library with a focus
 	  on asynchronous I/O.
 
 	  https://github.com/libuv/libuv
 
-comment "libuv needs a toolchain w/ NPTL, dynamic library"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+comment "libuv needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4

package/luv/Config.in

@@ -4,13 +4,15 @@ config BR2_PACKAGE_LUV
 	depends on BR2_USE_MMU # libuv
 	depends on !BR2_STATIC_LIBS # libuv
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	select BR2_PACKAGE_LIBUV
 	help
 	  libuv bindings for LuaJIT and Lua.
 
 	  https://github.com/luvit/luv
 
-comment "luv needs a toolchain w/ NPTL, dynamic library"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+comment "luv needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4

package/luvi/Config.in

@@ -5,6 +5,7 @@ config BR2_PACKAGE_LUVI
 	depends on !BR2_STATIC_LIBS # libuv
 	depends on BR2_PACKAGE_LUAJIT
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	select BR2_PACKAGE_LIBUV
 	select BR2_PACKAGE_LUV
 	select BR2_PACKAGE_LIBOPENSSL_ENABLE_DES if BR2_PACKAGE_LIBOPENSSL
@@ -25,8 +26,9 @@ config BR2_PACKAGE_LUVI
 
 	  https://github.com/luvit/luvi
 
-comment "luvi needs a toolchain w/ NPTL, dynamic library"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+comment "luvi needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 

package/moarvm/Config.in

@@ -5,6 +5,7 @@ config BR2_PACKAGE_MOARVM
 	depends on BR2_USE_MMU # libuv
 	depends on BR2_PACKAGE_LIBATOMIC_OPS_ARCH_SUPPORTS # libatomic_ops
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	select BR2_PACKAGE_LIBUV
 	select BR2_PACKAGE_LIBTOMMATH
 	select BR2_PACKAGE_LIBATOMIC_OPS
@@ -18,8 +19,9 @@ config BR2_PACKAGE_MOARVM
 
 	  http://moarvm.com
 
-comment "moarvm needs a toolchain w/ NPTL, dynamic library"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+comment "moarvm needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on BR2_USE_MMU
 	depends on BR2_PACKAGE_LIBATOMIC_OPS_ARCH_SUPPORTS
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4

package/netdata/Config.in

@@ -4,6 +4,7 @@ config BR2_PACKAGE_NETDATA
 	depends on BR2_USE_MMU # fork()
 	depends on !BR2_STATIC_LIBS # libuv
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	select BR2_PACKAGE_LIBUV
 	select BR2_PACKAGE_UTIL_LINUX
 	select BR2_PACKAGE_UTIL_LINUX_LIBUUID
@@ -35,7 +36,8 @@ comment "prometheus remote write backend needs a toolchain w/ C++, gcc >= 4.8"
 
 endif
 
-comment "netdata needs a toolchain w/ NPTL, dynamic library"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+comment "netdata needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4

package/python-uvloop/Config.in

@@ -4,6 +4,7 @@ config BR2_PACKAGE_PYTHON_UVLOOP
 	depends on BR2_USE_MMU # libuv
 	depends on !BR2_STATIC_LIBS # libuv
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	select BR2_PACKAGE_LIBUV
 	select BR2_PACKAGE_PYTHON3_SSL
 	help
@@ -11,7 +12,8 @@ config BR2_PACKAGE_PYTHON_UVLOOP
 
 	  http://github.com/MagicStack/uvloop
 
-comment "python-uvloop needs a toolchain w/ NPTL, dynamic library"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+comment "python-uvloop needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on BR2_USE_MMU

package/ttyd/Config.in

@@ -4,6 +4,7 @@ config BR2_PACKAGE_TTYD
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL # libuv
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv, json-c
 	depends on BR2_USE_MMU # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	select BR2_PACKAGE_JSON_C
 	select BR2_PACKAGE_LIBUV
 	select BR2_PACKAGE_LIBWEBSOCKETS
@@ -15,7 +16,8 @@ config BR2_PACKAGE_TTYD
 
 	  https://github.com/tsl0922/ttyd
 
-comment "ttyd needs a toolchain w/ NPTL, dynamic library"
-	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+comment "ttyd needs a toolchain w/ NPTL, dynamic library, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4

package/wampcc/Config.in

@@ -6,6 +6,7 @@ config BR2_PACKAGE_WAMPCC
 	depends on !BR2_STATIC_LIBS # libuv
 	depends on BR2_TOOLCHAIN_HAS_ATOMIC
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	depends on !BR2_TOOLCHAIN_HAS_GCC_BUG_64735 # std::shared_future
 	select BR2_PACKAGE_LIBUV
 	select BR2_PACKAGE_JANSSON
@@ -16,12 +17,13 @@ config BR2_PACKAGE_WAMPCC
 
 	  https://github.com/darrenjs/wampcc
 
-comment "wampcc needs a toolchain w/ C++, NPTL, dynamic library"
+comment "wampcc needs a toolchain w/ C++, NPTL, dynamic library, gcc >= 4.9"
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_ATOMIC
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_INSTALL_LIBSTDCPP || \
-		!BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS
+		!BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
 
 comment "wampcc needs a toolchain not affected by GCC bug 64735"
 	depends on BR2_USE_MMU

package/xmrig/Config.in

@@ -15,6 +15,7 @@ config BR2_PACKAGE_XMRIG
 	# xmrig needs fenv.h which is not provided by uclibc
 	depends on !BR2_TOOLCHAIN_USES_UCLIBC
 	depends on !BR2_STATIC_LIBS # libuv
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # libuv
 	depends on BR2_INSTALL_LIBSTDCPP
 	select BR2_PACKAGE_LIBUV
 	help
@@ -22,10 +23,11 @@ config BR2_PACKAGE_XMRIG
 
 	  https://xmrig.com
 
-comment "xmrig needs a glibc or musl toolchain w/ NPTL, dynamic library, C++"
+comment "xmrig needs a glibc or musl toolchain w/ NPTL, dynamic library, C++, gcc >= 4.9"
 	depends on BR2_PACKAGE_XMRIG_ARCH_SUPPORTS
 	depends on BR2_USE_MMU
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4
 	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || \
 		BR2_TOOLCHAIN_USES_UCLIBC || BR2_STATIC_LIBS || \
-		!BR2_INSTALL_LIBSTDCPP
+		!BR2_INSTALL_LIBSTDCPP || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9