Question

I am coding some C app on my Linux laptop, but at office, will occasionally port it to an android platform using ndk-build. Every time I switch platforms, I need to change a bunch of paths specific to either my laptop or the android platform. So I currently set it up something like:

#define ANDROID 1

#ifdef ANDROID
  #define ....
  #define ... bunch of stuff specific to android
#else
  #define ... bunch of stuff specific to my laptop. 
#endif

Each time I have to remember to comment/uncomment out the #define ANDROID line. It’s getting to be irritating. Is there any way to directly detect if I am running in an android environment or a regular linux environment and then setup my paths accordingly ? Thanks.

Answer 1

Put something like this in your Android.mk

LOCAL_CFLAGS    := -DANDROID

Where -D is a flag to pre-define a symbol and ANDROID is the symbol to define

Then your #ifdef ANDROID blocks in code will work.