NDK no longer includes getifaddr, make an ifaddr.h and ifaddr.so

Author: Mark W. Alexander

pythonforandroid/recipes/ifaddrs/__init__.py

@@ -0,0 +1,68 @@
+""" ifaddrs for Android
+"""
+from os.path import join, exists
+import sh
+from pythonforandroid.logger import info, shprint
+
+from pythonforandroid.toolchain import (CompiledComponentsPythonRecipe,
+                                        current_directory)
+
+class IFAddrRecipe(CompiledComponentsPythonRecipe):
+    version = 'master'
+    url = 'git+https://github.com/morristech/android-ifaddrs.git'
+    depends = [('hostpython2', 'hostpython3'), ('python2', 'python3crystax')]
+
+    call_hostpython_via_targetpython = False
+    site_packages_name = 'ifaddrs'
+    generated_libraries = ['libifaddrs.so']
+
+    def should_build(self, arch):
+        """It's faster to build than check"""
+        return not (exists(join(self.ctx.libs_dir, arch.arch, 'libifaddrs.so'))
+                    and exists(join(self.ctx.get_python_install_dir(), 'lib'
+                        "libifaddrs.so"))
+                    )
+
+    def prebuild_arch(self, arch):
+        """Make the build and target directories"""
+        path = self.get_build_dir(arch.arch)
+        if not  exists(path):
+            info("creating {}".format(path))
+            shprint(sh.mkdir, '-p', path)
+
+    def build_arch(self, arch):
+        """simple shared compile"""
+        env = self.get_recipe_env(arch, with_flags_in_cc=False)
+        for path in (self.get_build_dir(arch.arch),
+            join(self.ctx.python_recipe.get_build_dir(arch.arch), 'Lib'),
+            join(self.ctx.python_recipe.get_build_dir(arch.arch), 'Include'),
+                    ):
+            if not  exists(path):
+                info("creating {}".format(path))
+                shprint(sh.mkdir, '-p', path)
+        cli = env['CC'].split()
+        cc = sh.Command(cli[0])
+
+        with current_directory(self.get_build_dir(arch.arch)):
+            cflags = env['CFLAGS'].split()
+            cflags.extend(['-I.', '-c', '-l.', 'ifaddrs.c', '-I.'])
+            shprint(cc, *cflags, _env=env)
+
+            cflags = env['CFLAGS'].split()
+            cflags.extend(['-shared', '-I.', 'ifaddrs.o', '-o', 'libifaddrs.so'])
+            cflags.extend(env['LDFLAGS'].split())
+            shprint(cc, *cflags, _env=env)
+
+            shprint(sh.cp, 'libifaddrs.so', self.ctx.get_libs_dir(arch.arch))
+            shprint(sh.cp, "libifaddrs.so", join(self.ctx.get_python_install_dir(), 'lib'))
+            # drop header in to the Python include directory
+            shprint(sh.cp, "ifaddrs.h", join(self.ctx.get_python_install_dir(),
+                                          'include/python{}'.format(
+                                              self.ctx.python_recipe.version[0:3]
+                                          )
+                                         )
+                   )
+            include_path = join(self.ctx.python_recipe.get_build_dir(arch.arch), 'Include')
+            shprint(sh.cp, "ifaddrs.h", include_path)
+
+recipe = IFAddrRecipe()