On 24/01/13 11:21, Nathan Hüsken wrote:

Hey,

I am trying to adapt some code in the libraries when compiling for android (i.E. because some things are different on android to other posix systems).

So in C code I would just do "#ifdef __ANDROID__". While in the *.h and *.c files it seems to work, it does not work in *.hs files. I noted that the preprocessor is run like this:

arm-linux-androideabi-gcc -E -undef -traditional -fno-stack-protector -DTABLES_NEXT_TO_CODE

The "-undef" parameter is causing the __ANDROID__ define to be removed. Does it make sense to pass "-undef" to the preprocessor?

Any other Ideas how I could adapt the code for android?

You want to use: #ifdef android_HOST_OS the *_HOST_OS symbol is defined by GHC when it ivokes CPP. Cheers, Simon