Restructure directory, add 'pkgs' folder now

Makefile

@@ -3,10 +3,12 @@
 all: test install
 
 build-erasure:
-	cd erasure && make
+	cd pkgs/erasure && make
 
+build-signify:
+	cd pkgs/signify && make
 
-test: build-erasure
+test: build-erasure build-signify
 	godep go test -race -coverprofile=cover.out github.com/minio-io/minio
 
 install: build-erasure

cmd/minio-decode/main.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 
 	"github.com/codegangsta/cli"
-	"github.com/minio-io/minio/erasure"
+	"github.com/minio-io/minio/pkgs/erasure"
 )
 
 func main() {

cmd/minio-encode/main.go

@@ -7,7 +7,7 @@ import (
 	"strconv"
 
 	"github.com/codegangsta/cli"
-	"github.com/minio-io/minio/erasure"
+	"github.com/minio-io/minio/pkgs/erasure"
 )
 
 func main() {

isal

@@ -1 +1 @@
-erasure/isal
+pkgs/erasure/isal

pkgs/erasure/encode.go

@@ -19,8 +19,8 @@
 
 package erasure
 
-// #cgo CPPFLAGS: -Iisal/include
-// #cgo LDFLAGS: isal/isa-l.a
+// #cgo CPPFLAGS: -I./isal/include
+// #cgo LDFLAGS: ./isal/isa-l.a
 // #include <stdlib.h>
 // #include <erasure-code.h>
 // #include <stdlib.h>

pkgs/signify/Makefile

@@ -0,0 +1,8 @@
+all: build
+.PHONY: all
+
+libsignify/libsignify_static.a:
+	@$(MAKE) -C libsignify libsignify_static.a
+
+build: libsignify/libsignify_static.a
+	@godep go build