__ANDROID__ macro suddenly not defined

Question

I\'m working on an app which uses NDK (all I\'m writing happened both on r6b and r8d)

Everything was working fine, and I wanted to start and try debugging my C code.

Answer 1

Apparently __ANDROID__ is a specific GCC macro that it supposed to define internally whenever correct options are provided. However, since control over options is largely delegated to NDK, one should not rely on __ANDROID__ macro being ever defined. The compiler behind NDK might not be GCC for all we know (or care). When working with NDK, check for ANDROID.

Edit: clang now also defines __ANDROID__ macro

Answer 2

Just so you know:

• when you work with Android.mk file(s) and ndk-build, the ANDROID macro is predefined (see -DANDROID extra C flag when building with verbose outputs),
• but if you use the Android Standalone Toolchain, then __ANDROID__ is predefined instead.

So I suggest you to use:

#if defined(ANDROID) || defined(__ANDROID__)
  /* ... */
#endif

Answer 3

If anyone else encounters this issue:

I opened the workspace on another computer (Workspace is in a Dropbox folder), and the problem was still there on the other computer, which could only mean a workspace issue, so I delete the .metadata folder from the workspace.

I had to re-add the projects, but after doing so, everything seems to work now.