Question

Need your guidance, I am writing one app in android with the help of native code which will communicate with CAN (Controller Area Network) port ; for that in my C code i used linux/can.h header file. and i am following “http://mobilepearls.com/labs/ndk-builder-in-eclipse/” this link to build my app. but one i set all thing i got bellow msg in eclipse console box

Compile thumb : can_port <= cansend.c
jni/cansend.c:14:23: fatal error: linux/can.h: No such file or directory
compilation terminated.
make: *** [obj/local/armeabi/objs/can_port/cansend.o] Error 1

One more thing, i am working on windows environment. But i don’t think this may be cause.

Answer 1

It is correct that it is not a Windows/Linux problem. The simple problem is that compiler is unable to find the file can.h. Now, for your info, when the compiler starts compiling, it searches for its header files in the folder

C:\(path to NDK folder)\platforms\(android-version)\(arch)\usr\include\linux

Now, if there isn’t a can.h there, the compiler will flag an error. So the best way is

1. Either copy can.h to the above path (not tested)
2. Modify your Makefile to path to the correct directory where this header file is kept

Hope this helps!