Fix pyjnius linking with Qt bootstrap libmain

Author: lanmao

pythonforandroid/recipes/pyjnius/__init__.py

@@ -2,7 +2,7 @@
 from pythonforandroid.toolchain import shprint, current_directory, info
 from pythonforandroid.patching import will_build
 import sh
-from os.path import join
+from os.path import exists, join
 
 
 class PyjniusRecipe(PyProjectRecipe):
@@ -18,13 +18,26 @@ class PyjniusRecipe(PyProjectRecipe):
         ('sdl3_jnienv_getter.patch', will_build('sdl3')),
     ]
 
+    def ensure_main_library_alias(self, arch):
+        for lib_dir in (
+            join(self.ctx.bootstrap.build_dir, 'libs', arch.arch),
+            join(self.ctx.bootstrap.build_dir, 'obj', 'local', arch.arch),
+        ):
+            source = join(lib_dir, 'libmain_{}.so'.format(arch.arch))
+            alias = join(lib_dir, 'libmain.so')
+            if exists(source) and not exists(alias):
+                shprint(sh.cp, source, alias)
+
     def get_recipe_env(self, arch, **kwargs):
+        self.ensure_main_library_alias(arch)
         env = super().get_recipe_env(arch, **kwargs)
 
         # Taken from CythonRecipe
         env['LDFLAGS'] = env['LDFLAGS'] + ' -L{} '.format(
             self.ctx.get_libs_dir(arch.arch) +
             ' -L{} '.format(self.ctx.libs_dir) +
+            ' -L{} '.format(join(self.ctx.bootstrap.build_dir, 'libs',
+                                arch.arch)) +
             ' -L{}'.format(join(self.ctx.bootstrap.build_dir, 'obj', 'local',
                                 arch.arch)))
         env['LDSHARED'] = env['CC'] + ' -shared'