1*4882a593SmuzhiyunNOTE: Google original ndk libc.so is lack of some symbol and it will cause error 2*4882a593Smuzhiyunas follows: 3*4882a593Smuzhiyun 4*4882a593Smuzhiyunundefined reference to `__system_property_get' 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunPlease use the libc.so in this directory to fix this issue. 7*4882a593Smuzhiyun 8*4882a593SmuzhiyunBackup original libc.so in ndk first. Then Put lib.so to: 9*4882a593Smuzhiyunpath_to_ndk/platforms/android-21/arch-arm64/usr/lib/ 10