Repository: kivy/python-for-android

Issue:
Pymunk,kivy apk crashing on Android 5.1 
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### Checklist

- [ ] the issue is indeed a bug and not a support request
- [ ] issue doesn't already exist: https://github.com/kivy/python-for-android/issues
- [ ] I have a short, runnable example that reproduces the issue
- [ ] I reproduced the problem with the latest development version (`p4a.branch = develop`)
- [ ] I used the grave accent (aka backticks) to format code or logs when appropriated

### Versions

- Python:3.8.1
- OS:Android 5.1
- Kivy:2.0.2
- Cython:
- OpenJDK:8

### Description
pymunk,kivy apk crashing on Android 5.1 
// REPLACE ME: What are you trying to get done, what has happened, what went wrong, and what did you expect?

### buildozer.spec
[app]

# (str) Title of your application
title = Tone

# (str) Package name
package.name = tone

# (str) Package domain (needed for android/ios packaging)
package.domain = org.test

# (str) Source code where the main.py live
source.dir = .

# (list) Source files to include (let empty to include all the files)
source.include_exts = py,png,jpg,kv,atlas

# (list) List of inclusions using pattern matching
#source.include_patterns = assets/*,images/*.png

# (list) Source files to exclude (let empty to not exclude anything)
#source.exclude_exts = spec

# (list) List of directory to exclude (let empty to not exclude anything)
source.exclude_dirs = tests, bin

# (list) List of exclusions using pattern matching
#source.exclude_patterns = license,images/*/*.jpg

# (str) Application versioning (method 1)
version = 0.1

# (str) Application versioning (method 2)
# version.regex = __version__ = ['"](.*)['"]
# version.filename = %(source.dir)s/main.py

# (list) Application requirements
# comma separated e.g. requirements = sqlite3,kivy
requirements = python3,kivy==2.0.0,plyer,android,pyjnius,pymunk,cffi,pycparser,setuptools

# (str) Custom source folders for requirements
# Sets custom source for any requirements with recipes
# requirements.source.kivy = ../../kivy

# (list) Garden requirements
#garden_requirements =

# (str) Presplash of the application
#presplash.filename = %(source.dir)s/data/presplash.png

# (str) Icon of the application
#icon.filename = %(source.dir)s/data/icon.png

# (str) Supported orientation (one of landscape, sensorLandscape, portrait or all)
orientation = portrait

# (list) List of service to declare
#services = NAME:ENTRYPOINT_TO_PY,NAME2:ENTRYPOINT2_TO_PY

#
# OSX Specific
#

#
# author = © Copyright Info

# change the major version of python used by the app
osx.python_version = 3

# Kivy version to use
osx.kivy_version = 1.9.1

#
# Android specific
#

# (bool) Indicate if the application should be fullscreen or not
fullscreen = 0

# (string) Presplash background color (for new android toolchain)
# Supported formats are: #RRGGBB #AARRGGBB or one of the following names:
# red, blue, green, black, white, gray, cyan, magenta, yellow, lightgray,
# darkgray, grey, lightgrey, darkgrey, aqua, fuchsia, lime, maroon, navy,
# olive, purple, silver, teal.
#android.presplash_color = #FFFFFF

# (list) Permissions
android.permissions = INTERNET

# (int) Target Android API, should be as high as possible.
#android.api = 27

# (int) Minimum API your APK will support.
#android.minapi = 21

# (int) Android SDK version to use
#android.sdk = 20

# (str) Android NDK version to use
#android.ndk = 19b

# (int) Android NDK API to use. This is the minimum API your app will support, it should usually match android.minapi.
#android.ndk_api = 21

# (bool) Use --private data storage (True) or --dir public storage (False)
#android.private_storage = True

# (str) Android NDK directory (if empty, it will be automatically downloaded.)
#android.ndk_path =

# (str) Android SDK directory (if empty, it will be automatically downloaded.)
#android.sdk_path =

# (str) ANT directory (if empty, it will be automatically downloaded.)
#android.ant_path =

# (bool) If True, then skip trying to update the Android sdk
# This can be useful to avoid excess Internet downloads or save time
# when an update is due and you just want to test/build your package
# android.skip_update = False

# (bool) If True, then automatically accept SDK license
# agreements. This is intended for automation only. If set to False,
# the default, you will be shown the license when first running
# buildozer.
# android.accept_sdk_license = False

# (str) Android entry point, default is ok for Kivy-based app
#android.entrypoint = org.renpy.android.PythonActivity

# (str) Android app theme, default is ok for Kivy-based app
# android.apptheme = "@android:style/Theme.NoTitleBar"

# (list) Pattern to whitelist for the whole project
#android.whitelist =

# (str) Path to a custom whitelist file
#android.whitelist_src =

# (str) Path to a custom blacklist file
#android.blacklist_src =

# (list) List of Java .jar files to add to the libs so that pyjnius can access
# their classes. Don't add jars that you do not need, since extra jars can slow
# down the build process. Allows wildcards matching, for example:
# OUYA-ODK/libs/*.jar
#android.add_jars = foo.jar,bar.jar,path/to/more/*.jar

# (list) List of Java files to add to the android project (can be java or a
# directory containing the files)
#android.add_src =

# (list) Android AAR archives to add (currently works only with sdl2_gradle
# bootstrap)
#android.add_aars =

# (list) Gradle dependencies to add (currently works only with sdl2_gradle
# bootstrap)
#android.gradle_dependencies =

# (list) add java compile options
# this can for example be necessary when importing certain java libraries using the 'android.gradle_dependencies' option
# see https://developer.android.com/studio/write/java8-support for further information
# android.add_compile_options = "sourceCompatibility = 1.8", "targetCompatibility = 1.8"

# (list) Gradle repositories to add {can be necessary for some android.gradle_dependencies}
# please enclose in double quotes 
# e.g. android.gradle_repositories = "maven { url 'https://kotlin.bintray.com/ktor' }"
#android.add_gradle_repositories =

# (list) packaging options to add 
# see https://google.github.io/android-gradle-dsl/current/com.android.build.gradle.internal.dsl.PackagingOptions.html
# can be necessary to solve conflicts in gradle_dependencies
# please enclose in double quotes 
# e.g. android.add_packaging_options = "exclude 'META-INF/common.kotlin_module'", "exclude 'META-INF/*.kotlin_module'"
#android.add_gradle_repositories =

# (list) Java classes to add as activities to the manifest.
#android.add_activities = com.example.ExampleActivity

# (str) OUYA Console category. Should be one of GAME or APP
# If you leave this blank, OUYA support will not be enabled
#android.ouya.category = GAME

# (str) Filename of OUYA Console icon. It must be a 732x412 png image.
#android.ouya.icon.filename = %(source.dir)s/data/ouya_icon.png

# (str) XML file to include as an intent filters in <activity> tag
#android.manifest.intent_filters =

# (str) launchMode to set for the main activity
#android.manifest.launch_mode = standard

# (list) Android additional libraries to copy into libs/armeabi
#android.add_libs_armeabi = libs/android/*.so
#android.add_libs_armeabi_v7a = libs/android-v7/*.so
#android.add_libs_arm64_v8a = libs/android-v8/*.so
#android.add_libs_x86 = libs/android-x86/*.so
#android.add_libs_mips = libs/android-mips/*.so

# (bool) Indicate whether the screen should stay on
# Don't forget to add the WAKE_LOCK permission if you set this to True
#android.wakelock = False

# (list) Android application meta-data to set (key=value format)
#android.meta_data =

# (list) Android library project to add (will be added in the
# project.properties automatically.)
#android.library_references =

# (list) Android shared libraries which will be added to AndroidManifest.xml using <uses-library> tag
#android.uses_library =

# (str) Android logcat filters to use
#android.logcat_filters = *:S python:D

# (bool) Copy library instead of making a libpymodules.so
#android.copy_libs = 1

# (str) The Android arch to build for, choices: armeabi-v7a, arm64-v8a, x86, x86_64
android.arch = armeabi-v7a

# (int) overrides automatic versionCode computation (used in build.gradle)
# this is not the same as app version and should only be edited if you know what you're doing
# android.numeric_version = 1

#
# Python for android (p4a) specific
#

# (str) python-for-android fork to use, defaults to upstream (kivy)
#p4a.fork = kivy

# (str) python-for-android branch to use, defaults to master
#p4a.branch = master

# (str) python-for-android git clone directory (if empty, it will be automatically cloned from github)
#p4a.source_dir =

# (str) The directory in which python-for-android should look for your own build recipes (if any)
#p4a.local_recipes =

# (str) Filename to the hook for p4a
#p4a.hook =

# (str) Bootstrap to use for android builds
# p4a.bootstrap = sdl2

# (int) port number to specify an explicit --port= p4a argument (eg for bootstrap flask)
#p4a.port =


#
# iOS specific
#

# (str) Path to a custom kivy-ios folder
#ios.kivy_ios_dir = ../kivy-ios
# Alternately, specify the URL and branch of a git checkout:
ios.kivy_ios_url = https://github.com/kivy/kivy-ios
ios.kivy_ios_branch = master

# Another platform dependency: ios-deploy
# Uncomment to use a custom checkout
#ios.ios_deploy_dir = ../ios_deploy
# Or specify URL and branch
ios.ios_deploy_url = https://github.com/phonegap/ios-deploy
ios.ios_deploy_branch = 1.7.0

# (str) Name of the certificate to use for signing the debug version
# Get a list of available identities: buildozer ios list_identities
#ios.codesign.debug = "iPhone Developer: <lastname> <firstname> (<hexstring>)"

# (str) Name of the certificate to use for signing the release version
#ios.codesign.release = %(ios.codesign.debug)s


[buildozer]

# (int) Log level (0 = error only, 1 = info, 2 = debug (with command output))
log_level = 2

# (int) Display warning if buildozer is run as root (0 = False, 1 = True)
warn_on_root = 1

# (str) Path to build artifact storage, absolute or relative to spec file
# build_dir = ./.buildozer

# (str) Path to build output (i.e. .apk, .ipa) storage
# bin_dir = ./bin

#    -----------------------------------------------------------------------------
#    List as sections
#
#    You can define all the "list" as [section:key].
#    Each line will be considered as a option to the list.
#    Let's take [app] / source.exclude_patterns.
#    Instead of doing:
#
#[app]
#source.exclude_patterns = license,data/audio/*.wav,data/images/original/*
#
#    This can be translated into:
#
#[app:source.exclude_patterns]
#license
#data/audio/*.wav
#data/images/original/*
#


#    -----------------------------------------------------------------------------
#    Profiles
#
#    You can extend section / key with a profile
#    For example, you want to deploy a demo version of your application without
#    HD content. You could first change the title to add "(demo)" in the name
#    and extend the excluded directories to remove the HD content.
#
#[app@demo]
#title = My Application (demo)
#
#[app:source.exclude_patterns@demo]
#images/hd/*
#
#    Then, invoke the command line with the "demo" profile:
#
#buildozer --profile demo android debug

Command:
```sh
// REPLACE ME: buildozer command ran? e.g. buildozer android debug
// Keep the triple grave accent (aka backquote/backtick) to have the code formatted
```

Spec file:
```
// REPLACE ME: Paste your buildozer.spec file here
```

### Logs
I/python  (17703): [INFO   ] [GL          ] Backend used <sdl2>
I/python  (17703): [INFO   ] [GL          ] OpenGL version <b'OpenGL ES 2.0'>
I/python  (17703): [INFO   ] [GL          ] OpenGL vendor <b'ARM'>
I/python  (17703): [INFO   ] [GL          ] OpenGL renderer <b'Mali-400 MP'>
I/python  (17703): [INFO   ] [GL          ] OpenGL parsed version: 2, 0
I/python  (17703): [INFO   ] [GL          ] Texture max size <4096>
I/python  (17703): [INFO   ] [GL          ] Texture max units <8>
I/python  (17703): [INFO   ] [Window      ] auto add sdl2 input provider
I/python  (17703): [INFO   ] [Window      ] virtual keyboard not allowed, single mode, not docked
I/python  (17703): [INFO   ] [Text        ] Provider: sdl2
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBNewForExtents' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBNewForCircle' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBIntersects' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBContainsBB' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBContainsVect' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBMerge' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBExpand' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBCenter' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBArea' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBMergedArea' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBSegmentQuery' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBIntersectsSegment' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703):  /home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/cparser.py:162: UserWarning: Global variable '_cpBBClampVect' in cdef(): for consistency with C it should have a storage class specifier (usually 'extern')
I/python  (17703): Loading chipmunk for Linux (32bit) [/data/data/org.test.tone/files/app/_python_bundle/site-packages/pymunk/libchipmunk.so]
I/python  (17703): Failed to load Pymunk library.
I/python  (17703): This error usually means that you don't have a compiled version of Chipmunk in
I/python  (17703): the correct spot where Pymunk can find it. If you tried to run Pymunk without
I/python  (17703): installing it properly this can be the result.
I/python  (17703): The good news is that it is usually enough (at least on *nix and OS X) to
I/python  (17703): run the build command:
I/python  (17703): You compile Chipmunk with
I/python  (17703): > python setup.py build_ext --inplace
I/python  (17703): and then verify with
I/python  (17703): > python -m pymunk.test
I/python  (17703): (for complete instructions please see the readme file)
I/python  (17703): Another cause of this problem could be if you didnt included the Chipmunk
I/python  (17703): library when using a freeze tool such as Py2exe or PyInstaller. Please see the
I/python  (17703): examples for how to include the library file when freezing a binary.
I/python  (17703): If it still doesnt work, please report as a bug on the issue tracker at
I/python  (17703): https://github.com/viblo/pymunk/issues
I/python  (17703): Remember to include information about your OS, which version of python you use
I/python  (17703): and the version of pymunk you tried to run. A description of what you did to
I/python  (17703): trigger the error is also good. Please include the exception traceback if any
I/python  (17703): (usually found below this message).
I/python  (17703):  Traceback (most recent call last):
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/app/main.py", line 33, in <module>
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/pymunk/__init__.py", line 58, in <module>
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/pymunk/_chipmunk_cffi.py", line 3, in <module>
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/pymunk/_chipmunk_cffi_abi.py", line 1475, in <module>
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/pymunk/_libload.py", line 50, in load_library
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/api.py", line 146, in dlopen
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/api.py", line 828, in _make_ffi_library
I/python  (17703):    File "/home/sahil/app_test_kivy/.buildozer/android/platform/build-armeabi-v7a/build/python-installs/tone/cffi/api.py", line 823, in _load_backend_lib
I/python  (17703):  OSError: cannot load library '/data/data/org.test.tone/files/app/_python_bundle/site-packages/pymunk/libchipmunk.so': dlopen failed: cannot locate symbol "__sF" referenced by "libchipmunk.so"....  Additionally, ctypes.util.find_library() did not manage to locate a library called '/data/data/org.test.tone/files/app/_python_bundle/site-packages/pymunk/libchipmunk.so'
I/python  (17703): Python for android ended.

```
// REPLACE ME: Paste the build output containing the error
// Keep the triple grave accent (a.k.a. backquote/backtick) to have the code formatted
```



Discussion:

Resolving patch:
diff --git a/pythonforandroid/recipes/pymunk/__init__.py b/pythonforandroid/recipes/pymunk/__init__.py
--- a/pythonforandroid/recipes/pymunk/__init__.py
+++ b/pythonforandroid/recipes/pymunk/__init__.py
@@ -10,7 +10,8 @@ class PymunkRecipe(CompiledComponentsPythonRecipe):
 
     def get_recipe_env(self, arch):
         env = super().get_recipe_env(arch)
-        env["LDFLAGS"] += " -llog"
+        env["LDFLAGS"] += " -llog"  # Used by Chipmunk cpMessage
+        env["LDFLAGS"] += " -lm"  # For older versions of Android
         return env
 
 


Test patch: