Android ndk-build iostream: No such file or directory

This works for me.

LOCAL_STATIC_LIBRARIES +=  libstlport

LOCAL_C_INCLUDES += external/stlport/stlport 
LOCAL_C_INCLUDES += bionic

I think "APP_STL:=stlport_static" must be in Application.mk file.

Create a "Application.mk" file and write "APP_STL:=stlport_static" in it.