package/python: add option to build on the host

Some python scripts may be ran in the custom scripts a user can define
in the config. Allow the user to enable host-python explicitly.

If any of those require ssl, they will fail with no possible fix.
Add an option to enable openssl as well. This is made optional because
openssl significantly increases the build time.

Signed-off-by: Nicolas Carrier <nicolas.carrier@orolia.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/Config.in.host

@@ -52,6 +52,7 @@ menu "Host utilities"
 	source "package/pkgconf/Config.in.host"
 	source "package/pru-software-support/Config.in.host"
 	source "package/pwgen/Config.in.host"
+	source "package/python/Config.in.host"
 	source "package/python-cython/Config.in.host"
 	source "package/python-lxml/Config.in.host"
 	source "package/python-six/Config.in.host"

package/python/Config.in.host

@@ -0,0 +1,16 @@
+config BR2_PACKAGE_HOST_PYTHON
+	bool "host python"
+	help
+	  The python language interpreter. Host package.
+
+	  http://www.python.org/
+
+if BR2_PACKAGE_HOST_PYTHON
+
+config BR2_PACKAGE_HOST_PYTHON_SSL
+	bool "ssl"
+	select BR2_PACKAGE_HOST_OPENSSL
+	help
+	  _ssl module for host Python.
+
+endif

package/python/python.mk

@@ -32,7 +32,6 @@ HOST_PYTHON_CONF_OPTS += \
 	--disable-bsddb \
 	--disable-test-modules \
 	--disable-bz2 \
-	--disable-ssl \
 	--disable-ossaudiodev \
 	--disable-pyo-build
 
@@ -58,6 +57,12 @@ PYTHON_DEPENDENCIES = host-python libffi $(TARGET_NLS_DEPENDENCIES)
 
 HOST_PYTHON_DEPENDENCIES = host-expat host-zlib
 
+ifeq ($(BR2_PACKAGE_HOST_PYTHON_SSL),y)
+HOST_PYTHON_DEPENDENCIES += host-openssl
+else
+HOST_PYTHON_CONF_OPTS += --disable-ssl
+endif
+
 PYTHON_INSTALL_STAGING = YES
 
 ifeq ($(BR2_PACKAGE_PYTHON_READLINE),y)