Add a simple Makefile please

[MatthewHannigan]

Hi,
A simple, useful Makefile could be a single line:

main: example-buffer.o example-codelock.o example-small.o

example

... async.h.git/async (master)$ make
cc -c -o example-buffer.o example-buffer.c
cc -c -o example-codelock.o example-codelock.c
cc -c -o example-small.o example-small.c
cc main.c example-buffer.o example-codelock.o example-small.o -o main

[triwahyuu]

I have made a simple one in #4

[naasking]

Sorry for the delay, I haven't had a chance to boot into Linux and test it out. I will do so soon.

[triwahyuu]

any plan to make travis ci maybe?

[c-smile]

You can use premake5 file from my https://github.com/c-smile/async.hpp pretty much as it is.

Just change language "C++" to language "C" and files from *.hpp, *.cpp to *.h and *.c

[naasking]

Pull request merged. Sorry for the delay!