package/python-autobahn: add missing dependency on C++

The indirect dependency via python-cryptography was not set in the
Config.in.

Detected with randconfig.

And propagate this to the reverse dependencies.

Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
[Peter: also propagate to the reverse dependencies]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/python-autobahn/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_PYTHON_AUTOBAHN
 	bool "python-autobahn"
+	depends on BR2_INSTALL_LIBSTDCPP # python-cryptography -> python-pyasn
 	select BR2_PACKAGE_PYTHON_CRYPTOGRAPHY # runtime
 	select BR2_PACKAGE_PYTHON_SIX # runtime
 	select BR2_PACKAGE_PYTHON_TXAIO # runtime
@@ -8,3 +9,6 @@ config BR2_PACKAGE_PYTHON_AUTOBAHN
 	  framework.
 
 	  https://pypi.python.org/pypi/autobahn
+
+comment "python-autobahn needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP

package/python-channels-redis/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_PYTHON_CHANNELS_REDIS
 	bool "python-channels-redis"
+	depends on BR2_INSTALL_LIBSTDCPP # python-channels -> python-daphne
 	depends on BR2_PACKAGE_PYTHON3 # python-channels
 	select BR2_PACKAGE_PYTHON_AIOREDIS # runtime
 	select BR2_PACKAGE_PYTHON_ASGIREF # runtime
@@ -11,3 +12,7 @@ config BR2_PACKAGE_PYTHON_CHANNELS_REDIS
 	  sharded configurations, as well as group support.
 
 	  http://github.com/django/channels_redis/
+
+comment "python-channels-redis needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP
+	depends on BR2_PACKAGE_PYTHON3

package/python-channels/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_PYTHON_CHANNELS
 	bool "python-channels"
+	depends on BR2_INSTALL_LIBSTDCPP # python-daphne -> python-autobahn -> python-cryptography
 	depends on BR2_PACKAGE_PYTHON3 # python-daphne
 	select BR2_PACKAGE_PYTHON_ASGIREF # runtime
 	select BR2_PACKAGE_PYTHON_DAPHNE # runtime
@@ -13,3 +14,7 @@ config BR2_PACKAGE_PYTHON_CHANNELS
 	  own protocols and needs.
 
 	  http://github.com/django/channels
+
+comment "python-channels needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP
+	depends on BR2_PACKAGE_PYTHON3

package/python-daphne/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_PYTHON_DAPHNE
 	bool "python-daphne"
+	depends on BR2_INSTALL_LIBSTDCPP # python-autobahn -> python-cryptography
 	depends on BR2_PACKAGE_PYTHON3
 	select BR2_PACKAGE_PYTHON_ASGIREF # runtime
 	select BR2_PACKAGE_PYTHON_AUTOBAHN # runtime
@@ -12,3 +13,7 @@ config BR2_PACKAGE_PYTHON_DAPHNE
 	  versus HTTP endpoints.
 
 	  https://github.com/django/daphne
+
+comment "python-daphne needs a toolchain w/ C++"
+	depends on !BR2_INSTALL_LIBSTDCPP
+	depends on BR2_PACKAGE_PYTHON3