1. stuct iovec redefinition of uio.h
Problem: linux/uio.h:18:8: error: redefinition of 'struct iovec'
Solution: Add -DHAVE_SYS_UIO_H to LOCAL_CFLAGS
or APP_CPPFLAGS
example:
LOCAL_CFLAGS += -DHAVE_SYS_UIO_H
or
APP_CPPFLAGS := -fno-rtti
APP_CPPFLAGS += -fexceptions -DHAVE_SYS_UIO_H