lxml recipe

This is a squash of many commits comming from #1166
work by Zachary Goldberg (https://github.com/ZachGoldberg) and Elena
Pereira (https://github.com/Scefing)

Author: ZachGoldberg

pythonforandroid/recipes/levenshtein/__init__.py

@@ -0,0 +1,21 @@
+from pythonforandroid.toolchain import CompiledComponentsPythonRecipe
+from os.path import dirname
+
+class LevenshteinRecipe(CompiledComponentsPythonRecipe):
+    name="levenshtein"
+    version = '0.12.0'
+    url = 'https://pypi.python.org/packages/source/p/python-Levenshtein/python-Levenshtein-{version}.tar.gz'
+    depends = [('python2', 'python3'), 'setuptools']
+
+    call_hostpython_via_targetpython = False
+
+    def get_recipe_env(self, arch):
+        env = super(LevenshteinRecipe, self).get_recipe_env(arch)
+        libxslt_recipe = Recipe.get_recipe('libxslt', self.ctx)
+        libxml2_recipe = Recipe.get_recipe('libxml2', self.ctx)
+        targetpython = "%s/include/python2.7/" % dirname(dirname(self.ctx.hostpython))
+        env['CC'] += " -I%s/include -I%s -I%s" % (libxml2_recipe, libxslt_recipe, targetpython)
+        env['LDSHARED'] = '%s -nostartfiles -shared -fPIC -lpython2.7' % env['CC']
+        return env
+
+recipe = LevenshteinRecipe()

pythonforandroid/recipes/libxml2/__init__.py

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+from pythonforandroid.toolchain import Recipe, shprint, shutil, current_directory
+from os.path import exists, join
+import sh
+
+class Libxml2Recipe(Recipe):
+    version = '2.7.8'
+    url = 'http://xmlsoft.org/sources/libxml2-{version}.tar.gz'
+    depends = []
+    patches = ['add-glob.c.patch']
+
+    def should_build(self, arch):
+        super(Libxml2Recipe, self).should_build(arch)
+        return not exists(join(self.ctx.get_libs_dir(arch.arch), 'libxml2.a'))
+
+    def build_arch(self, arch):
+        super(Libxml2Recipe, self).build_arch(arch)
+        env = self.get_recipe_env(arch)
+        with current_directory(self.get_build_dir(arch.arch)):
+            env['CC'] += " -I%s" % self.get_build_dir(arch.arch)
+            shprint(sh.Command('./configure'),  '--host=arm-linux-eabi',
+                    '--without-modules',  '--without-legacy', '--without-hfinistory',  '--without-debug',  '--without-docbook', '--without-python', '--without-threads', '--without-iconv',
+                    _env=env)
+
+            # Ensure we only build libxml2.la as if we do everything
+            # we'll need the glob dependency which is a big headache
+            shprint(sh.make, "libxml2.la", _env=env)
+            shutil.copyfile('.libs/libxml2.a', join(self.ctx.get_libs_dir(arch.arch), 'libxml2.a'))
+
+
+    def get_recipe_env(self, arch):
+        env = super(Libxml2Recipe, self).get_recipe_env(arch)
+        env['CONFIG_SHELL'] = '/bin/bash'
+        env['SHELL'] = '/bin/bash'
+        env['CC'] = '/usr/bin/ccache arm-linux-androideabi-gcc -DANDROID -mandroid -fomit-frame-pointer'
+        return env
+
+recipe = Libxml2Recipe()