Update build system. Now libraries are produced as build artifacts.
There are currently 3 ways to build:
* Easy: `./configure; make`
* Simple: use Bazel
* Portable: use premake5 to generate XCode / MSVS projects
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..6a2a148
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,12 @@
+include build/gmake/config.make
+
+TARGETS=all clean brotli_common brotli_dec brotli_enc bro help
+
+.PHONY: $(TARGETS) install
+
+$(TARGETS):
+ @${MAKE} -C build/gmake $@
+
+install:
+ @echo "copy include and libraries to $(prefix)"
+ $(error Installation is not implemented yet)