package/python3: add option to support lzma/xz in host-python

This will be needed by the upcoming host-python-uswid package.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/python3/Config.in.host

@@ -12,6 +12,11 @@ config BR2_PACKAGE_HOST_PYTHON3_BZIP2
 	help
 	  bz2 module for host Python3.
 
+config BR2_PACKAGE_HOST_PYTHON3_XZ
+	bool "xz"
+	help
+	  xz (a.k.a lzma) module for host Python3
+
 config BR2_PACKAGE_HOST_PYTHON3_CURSES
 	bool "curses"
 	help

package/python3/python3.mk

@@ -57,6 +57,12 @@ else
 HOST_PYTHON3_CONF_ENV += py_cv_module__bz2=n/a
 endif
 
+ifeq ($(BR2_PACKAGE_HOST_PYTHON3_XZ),y)
+HOST_PYTHON3_DEPENDENCIES += host-xz
+else
+HOST_PYTHON3_CONF_ENV += py_cv_module__lzma=n/a
+endif
+
 ifeq ($(BR2_PACKAGE_HOST_PYTHON3_CURSES),y)
 HOST_PYTHON3_DEPENDENCIES += host-ncurses
 else