[CORE UPDATE - PART V] Fix pycrypto (#1546)

* Fix openssl dependant recipe: pycrypto (and grants python3 compatibility)

Since the recent openssl upgrade this recipe stopped to work. Here we adapt the recipe to the new python2 build system and to new openssl version. Also bump the recipe version number to the latest available (to avoid possible errors with our python3).

* Move libraries from LDFLAGS to LIBS for pycrypto recipe

Because this is how you are supposed to do it, you must use LDFLAGS for linker flags and LDLIBS (or the equivalent LOADLIBES) for the libraries

pythonforandroid/recipes/pycrypto/__init__.py

@@ -4,26 +4,27 @@
     info,
     shprint,
 )
-from os.path import join
 import sh
 
 
 class PyCryptoRecipe(CompiledComponentsPythonRecipe):
-    version = '2.6.1'
-    url = 'https://pypi.python.org/packages/source/p/pycrypto/pycrypto-{version}.tar.gz'
-    depends = ['openssl', 'python2']
+    version = '2.7a1'
+    url = 'https://github.com/dlitz/pycrypto/archive/v{version}.zip'
+    depends = ['openssl', ('python2', 'python3')]
     site_packages_name = 'Crypto'
-
+    call_hostpython_via_targetpython = False
     patches = ['add_length.patch']
 
-    def get_recipe_env(self, arch=None):
+    def get_recipe_env(self, arch=None, clang=True):
         env = super(PyCryptoRecipe, self).get_recipe_env(arch)
-        openssl_build_dir = Recipe.get_recipe('openssl', self.ctx).get_build_dir(arch.arch)
-        env['CC'] = '%s -I%s' % (env['CC'], join(openssl_build_dir, 'include'))
-        env['LDFLAGS'] = env['LDFLAGS'] + ' -L{}'.format(
-            self.ctx.get_libs_dir(arch.arch) +
-            '-L{}'.format(self.ctx.libs_dir)) + ' -L{}'.format(
-            openssl_build_dir)
+        openssl_recipe = Recipe.get_recipe('openssl', self.ctx)
+        env['CC'] = env['CC'] + openssl_recipe.include_flags(arch)
+
+        env['LDFLAGS'] += ' -L{}'.format(self.ctx.get_libs_dir(arch.arch))
+        env['LDFLAGS'] += ' -L{}'.format(self.ctx.libs_dir)
+        env['LDFLAGS'] += openssl_recipe.link_dirs_flags(arch)
+        env['LIBS'] = env.get('LIBS', '') + openssl_recipe.link_libs_flags()
+
         env['EXTRA_CFLAGS'] = '--host linux-armv'
         env['ac_cv_func_malloc_0_nonnull'] = 'yes'
         return env