Added beginnings of lxml recipes

pythonforandroid/recipes/lxml/__init__.py

@@ -0,0 +1,32 @@
+
+
+from pythonforandroid.toolchain import (CythonRecipe, shprint,
+                                        current_directory, info, Recipe)
+from pythonforandroid.patching import will_build, check_any
+import sh
+from os.path import join
+
+
+class LxmlRecipe(CythonRecipe):
+    version = '3.7.2'
+    url = 'https://github.com/lxml/lxml/archive/lxml-{version}.tar.gz'
+    name = 'lxml'
+    depends = [('python2', 'python3crystax'), 'libxslt']
+
+    def get_recipe_env(self, arch):
+        env = super(LxmlRecipe, self).get_recipe_env(arch)
+
+        libxslt_recipe = Recipe.get_recipe('libxslt', self.ctx)
+        libxml2_recipe = Recipe.get_recipe('libxml2', self.ctx)
+
+        env['CC'] = env['CC'] + ' -I{libxslt_dir}/include -I{libxslt_dir}'.format(
+            librslt_dir=libxslt_recipe.get_build_dir(arch))
+
+        env['LDFLAGS'] = ('-Llibxslt_dir/libxslt/.libs -Llibxslt_dir/libexslt/.libs '
+                          '-Llibxml2_dir/.libs -Llibxslt_dir/libxslt -Llibxslt_dir/libexslt '
+                          '-Llibxml2_dir/ ').format(libxslt_dir=libxslt_recipe.get_build_dir(arch),
+                                                    libxml2_dir=libxml2_recipe.get_build_dir(arch))
+
+        # env['LDSHARED'] = env['LIBLINK']  # not sure this is necessary in new toolchain
+
+recipe = LxmlRecipe()