[lwip-users] Need help in ndk-build

[Anmol Sehgal]

Hi,

 

Thank for your responses but my query is regarding compiling the lwip-2.0.2 through NDK-build for android platform, as we want to use lwip-2.0.2 to implement L2TP protocol for the vpn connection.

 

We downloaded the working git project for LWIP-1.4.1 from the URL: https://github.com/digitalsorcery/LWIPAndroidJNI

And in a similar way, we are trying to build LWIP-2.0.2, as per your suggestion, but getting compilation errors.

The errors faced while trying to compile and make .so file are as below:

 

[armeabi] SharedLibrary  : liblwip-android.so

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/api/sockets.c:510: error: undefined reference to 'errno'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/api/sockets.c:510: error: undefined reference to 'errno'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/api/sockets.c:510: error: undefined reference to 'errno'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/api/sockets.c:510: error: undefined reference to 'errno'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/netif/slipif.c:391: error: undefined reference to '

sio_open'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/netif/slipif.c:132: error: undefined reference to '

sio_send'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/netif/slipif.c:140: error: undefined reference to '

sio_send'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/netif/slipif.c:145: error: undefined reference to '

sio_send'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/netif/slipif.c:150: error: undefined reference to '

sio_send'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/netif/slipif.c:337: error: undefined reference to '

sio_read'

C:/Users/anmolsehgal/Desktop/LWIPAndroidJNI-master2.0.2/LWIPAndroidJNI-master/jni/lwip-2.0.2/src/netif/slipif.c:437: error: undefined reference to '

sio_tryread'

clang++.exe: error: linker command failed with exit code 1 (use -v to

clang++see invocation)

 

 

 

Any help would be appreciated.

 

Regards,

Anmol

 

 

Thanks and Regards

Anmol Sehgal