Ugh. We had redefinitions of all the __builtin_* math functions in
here.
Test: ./checkbuild.py
Bug: https://github.com/android-ndk/ndk/issues/142
Change-Id: Iec187c3a542e2dc9b3d628c2a9aa3fb45d7986ef
posix_memalign is added to libc.so for API 17, 18, 19 but prototype
is missing from stdlib.h
Turns out API 16 supports posix_memalign too. Add it as well
See b.android.com/77861
Change-Id: I940cdc60af9f98490001d67bef32fee556a3ac51