micropython/micropython — pull request #897 by tomvonclef (2014-10-08 21:31:27+00:00)
Title: Updating README.md. The Unix build requires pkg-config for FFI.

See lines 71,72 of unix/Makefile:
```Make
LIBFFI_LDFLAGS_MOD := $(shell pkg-config --libs libffi)
LIBFFI_CFLAGS_MOD := $(shell pkg-config --cflags libffi)
```