[PATCH 2/5] Bionic lacks mempcpy; enable existing workaround

Wed Apr 29 02:45:43 UTC 2015

(The attached patch subsumes the previous "Bionic lacks mempcpy; enable existing workaround".)

Bionic has been growing new features over the years, so platform.h should test the __ANDROID_API__ macro to determine which functions to polyfill.

Specifically:
* Bionic has supported fdprintf() since API level 8. This is a direct replacement for dprintf(). (The Bionic header chides Glibc for choosing the name "dprintf".)
* Bionic has supported ttyname_r(), getline(), and stpcpy() since API level 21.

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