bitcoin/secp256k1 — pull request #143 by paveljanik (2014-12-08 19:50:41+00:00)
Title: Include time.h header for time().

Prevents compiler warning:
```
src/tests.c: In function ‘main’:
src/tests.c:1139: warning: implicit declaration of function ‘time’
src/tests.c:1139: warning: nested extern declaration of ‘time’
```