package/python3: add optional support for lzma

Needed by the upcoming python-mwscrape2slob package.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
[Thomas: move "select" after "bool".]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/python3/Config.in

@@ -98,6 +98,12 @@ config BR2_PACKAGE_PYTHON3_PYEXPAT
 	help
 	  pyexpat and xml libraries for Python3.
 
+config BR2_PACKAGE_PYTHON3_XZ
+	bool "xz module"
+	select BR2_PACKAGE_XZ
+	help
+	  xz (a.k.a lzma) module for Python3
+
 config BR2_PACKAGE_PYTHON3_ZLIB
 	bool "zlib module"
 	select BR2_PACKAGE_ZLIB

package/python3/python3.mk

@@ -103,6 +103,10 @@ ifeq ($(BR2_PACKAGE_PYTHON3_BZIP2),y)
 PYTHON3_DEPENDENCIES += bzip2
 endif
 
+ifeq ($(BR2_PACKAGE_PYTHON3_XZ),y)
+PYTHON3_DEPENDENCIES += xz
+endif
+
 ifeq ($(BR2_PACKAGE_PYTHON3_ZLIB),y)
 PYTHON3_DEPENDENCIES += zlib
 endif