Did initial implementation of an ndk-api build target option

pythonforandroid/archs.py

@@ -133,6 +133,7 @@ def get_env(self, with_flags_in_cc=True):
         env['PATH'] = environ['PATH']
 
         env['ARCH'] = self.arch
+        env['NDK_API'] = str(self.ctx.ndk_api)
 
         if self.ctx.python_recipe and self.ctx.python_recipe.from_crystax:
             env['CRYSTAX_PYTHON_VERSION'] = self.ctx.python_recipe.version

pythonforandroid/bootstraps/sdl2/build/jni/Application.mk

@@ -5,4 +5,4 @@
 
 # APP_ABI := armeabi armeabi-v7a x86
 APP_ABI := $(ARCH)
-APP_PLATFORM := android-21
+APP_PLATFORM := $(NDK_API)

pythonforandroid/bootstraps/sdl2/build/jni/src/Android.mk

@@ -12,13 +12,13 @@ LOCAL_C_INCLUDES := $(LOCAL_PATH)/$(SDL_PATH)/include
 LOCAL_SRC_FILES := $(SDL_PATH)/src/main/android/SDL_android_main.c \
 	start.c
 
-LOCAL_CFLAGS += -I$(LOCAL_PATH)/../../../../other_builds/$(PYTHON2_NAME)/$(ARCH)/python2/python-install/include/python2.7 $(EXTRA_CFLAGS) -I$(LOCAL_PATH)/../../../../other_builds/python3/$(ARCH)/python3/Include -I$(LOCAL_PATH)/../../../../other_builds/python3/$(ARCH)/python3/android-build
+LOCAL_CFLAGS += -I$(PYTHON_INCLUDE_ROOT) $(EXTRA_CFLAGS)
 
 LOCAL_SHARED_LIBRARIES := SDL2 python_shared
 
-LOCAL_LDLIBS := -lGLESv1_CM -lGLESv2 -llog $(EXTRA_LDLIBS) -lpython3.7m
+LOCAL_LDLIBS := -lGLESv1_CM -lGLESv2 -llog $(EXTRA_LDLIBS)
 
-LOCAL_LDFLAGS += -L$(LOCAL_PATH)/../../../../other_builds/$(PYTHON2_NAME)/$(ARCH)/python2/python-install/lib $(APPLICATION_ADDITIONAL_LDFLAGS) -L$(LOCAL_PATH)/../../../../other_builds/python3/$(ARCH)/python3/android-build
+LOCAL_LDFLAGS += -L$(PYTHON_LINK_ROOT) $(APPLICATION_ADDITIONAL_LDFLAGS)
 
 include $(BUILD_SHARED_LIBRARY)
 

pythonforandroid/build.py

@@ -158,8 +158,12 @@ def ndk_dir(self):
     def ndk_dir(self, value):
         self._ndk_dir = value
 
-    def prepare_build_environment(self, user_sdk_dir, user_ndk_dir,
-                                  user_android_api, user_ndk_ver):
+    def prepare_build_environment(self,
+                                  user_sdk_dir,
+                                  user_ndk_dir,
+                                  user_android_api,
+                                  user_ndk_ver,
+                                  user_ndk_api):
         '''Checks that build dependencies exist and sets internal variables
         for the Android SDK etc.
 
@@ -328,6 +332,8 @@ def prepare_build_environment(self, user_sdk_dir, user_ndk_dir,
                     'set it with `--ndk-version=...`.')
         self.ndk_ver = ndk_ver
 
+        self.ndk_api = user_ndk_api
+
         info('Using {} NDK {}'.format(self.ndk.capitalize(), self.ndk_ver))
 
         virtualenv = None

pythonforandroid/recipe.py

@@ -277,7 +277,8 @@ def get_build_container_dir(self, arch):
         alternative or optional dependencies are being built.
         '''
         dir_name = self.get_dir_name()
-        return join(self.ctx.build_dir, 'other_builds', dir_name, arch)
+        return join(self.ctx.build_dir, 'other_builds',
+                    dir_name, '{}__ndk_target_{}'.format(arch, self.ctx.ndk_api))
 
     def get_dir_name(self):
         choices = self.check_recipe_choices()
@@ -1081,7 +1082,6 @@ def get_recipe_env(self, arch, with_flags_in_cc=True):
 
         return env
 
-
 class TargetPythonRecipe(Recipe):
     '''Class for target python recipes. Sets ctx.python_recipe to point to
     itself, so as to know later what kind of Python was built or used.'''
@@ -1102,6 +1102,13 @@ def prebuild_arch(self, arch):
             exit(1)
         self.ctx.python_recipe = self
 
+    def include_root(self, arch):
+        '''The root directory from which to include headers.'''
+        raise NotImplementedError('Not implemented in TargetPythonRecipe')
+
+    def link_root(self):
+        raise NotImplementedError('Not implemented in TargetPythonRecipe')
+
     # @property
     # def ctx(self):
     #     return self._ctx

pythonforandroid/recipes/python3/__init__.py

@@ -103,5 +103,13 @@ def build_arch(self, arch):
             # TODO: Look into passing the path to pyconfig.h in a
             # better way, although this is probably acceptable
             sh.cp('pyconfig.h', join(recipe_build_dir, 'Include'))
+
+    def include_root(self, arch_name):
+        return join(self.get_build_dir(arch_name),
+                    'Include')
+
+    def link_root(self, arch_name):
+        return join(self.get_build_dir(arch_name),
+                    'android-build')
 
 recipe = Python3Recipe()

pythonforandroid/recipes/sdl2/__init__.py

@@ -17,11 +17,20 @@ class LibSDL2Recipe(BootstrapNDKRecipe):
 
     def get_recipe_env(self, arch=None):
         env = super(LibSDL2Recipe, self).get_recipe_env(arch)
+
         py2 = self.get_recipe('python2', arch.ctx)
         env['PYTHON2_NAME'] = py2.get_dir_name()
+        py3 = self.get_recipe('python3', arch.ctx)
+
+        env['PYTHON_INCLUDE_ROOT'] = self.ctx.python_recipe.include_root(arch.arch)
+        env['PYTHON_LINK_ROOT'] = self.ctx.python_recipe.link_root(arch.arch)
+
         if 'python2' in self.ctx.recipe_build_order:
             env['EXTRA_LDLIBS'] = ' -lpython2.7'
 
+        if 'python3' in self.ctx.recipe_build_order:
+            env['EXTRA_LDLIBS'] = ' -lpython3.7m'  # TODO: don't hardcode the python version
+
         env['APP_ALLOW_MISSING_DEPS'] = 'true'
         return env
 

pythonforandroid/toolchain.py

@@ -139,7 +139,8 @@ def wrapper_func(self, args):
         ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
                                       user_ndk_dir=self.ndk_dir,
                                       user_android_api=self.android_api,
-                                      user_ndk_ver=self.ndk_version)
+                                      user_ndk_ver=self.ndk_version,
+                                      user_ndk_api=self.ndk_api)
         dist = self._dist
         if dist.needs_build:
             info_notify('No dist exists that meets your requirements, '
@@ -260,6 +261,10 @@ def __init__(self):
             '--ndk-version', '--ndk_version', dest='ndk_version', default='',
             help=('The version of the Android NDK. This is optional, '
                   'we try to work it out automatically from the ndk_dir.'))
+        generic_parser.add_argument(
+            '--ndk-api', type=int, default=21,
+            help=('The Android API level to compile against. This should be your '
+                  '*minimal supported* API, not normally the same as your --android-api.'))
         generic_parser.add_argument(
             '--symlink-java-src', '--symlink_java_src',
             action='store_true',
@@ -500,6 +505,7 @@ def add_parser(subparsers, *args, **kwargs):
         self.ndk_dir = args.ndk_dir
         self.android_api = args.android_api
         self.ndk_version = args.ndk_version
+        self.ndk_api = args.ndk_api
         self.ctx.symlink_java_src = args.symlink_java_src
         self.ctx.java_build_tool = args.java_build_tool
 
@@ -903,7 +909,8 @@ def sdk_tools(self, args):
         ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
                                       user_ndk_dir=self.ndk_dir,
                                       user_android_api=self.android_api,
-                                      user_ndk_ver=self.ndk_version)
+                                      user_ndk_ver=self.ndk_version,
+                                      user_ndk_api=self.ndk_api)
         android = sh.Command(join(ctx.sdk_dir, 'tools', args.tool))
         output = android(
             *args.unknown_args, _iter=True, _out_bufsize=1, _err_to_out=True)
@@ -930,7 +937,8 @@ def _adb(self, commands):
         ctx.prepare_build_environment(user_sdk_dir=self.sdk_dir,
                                       user_ndk_dir=self.ndk_dir,
                                       user_android_api=self.android_api,
-                                      user_ndk_ver=self.ndk_version)
+                                      user_ndk_ver=self.ndk_version,
+                                      user_ndk_api=self.ndk_api)
         if platform in ('win32', 'cygwin'):
             adb = sh.Command(join(ctx.sdk_dir, 'platform-tools', 'adb.exe'))
         else: