ndk-build: undefined reference to .. errors when statically linking to libxml.a

Question

I get a lot of undefined reference to ... errors when I compile my single c++ source-file using the ndk-build tool. For the record I use NDK r6 on a linux host system.

F

Answer 1

The problem is that some functionalities are enabled by default while they may need some extra linking to other libraries , this functionalities are : - support loading MOD music via modplug . - support loading MOD music via mikmod - support loading MP3 music via SMPEG you should disable these options to build sdl2_mixer so go to "Android.mk" ( of SDL2_mixer) file and you will find :

SUPPORT_MOD_MODPLUG ?= true
...
SUPPORT_MOD_MIKMOD ?= true
...
SUPPORT_MP3_SMPEG ?= true

change those to "false" and it will work for you as did with me !

NOTES :

 LOCAL_ALLOW_UNDEFINED_SYMBOLS := true

1- will cause a runtime error , because the symbol will still not be resolved at runtime

2- You won't be able to load mp3 files but you can covert them to "ogg" with almost the same size and quality , but you can find the perfect solution of your exact problem here Runtime linking error with SDL_Mixer and SMPEG2 on Android