Update build process

4 files changed, 14 insertions, 5 deletions

diff --git a/Makefile b/Makefile
index 994382f..b1b4b0f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,11 +1,16 @@
 SRC = $(wildcard *.go)
+VERSION=$(shell git describe --tags)
 
+all: linux-amd64 darwin-amd64 windows-amd64
 linux-amd64: build/tarpit-linux-amd64
-
+darwin-amd64: build/tarpit-darwin-amd64
 windows-amd64: build/tarpit-windows-amd64.exe
 
 build/tarpit-linux-amd64: $(SRC)
-	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o "$@" -ldflags '-extldflags "-static"'
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o "$@" -ldflags '-extldflags "-static" -X main.version=${VERSION}'
+
+build/tarpit-darwin-amd64: $(SRC)
+	CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -a -o "$@" -ldflags '-extldflags "-static" -X main.version=${VERSION}'
 
 build/tarpit-windows-amd64.exe: $(SRC)
-	GOOS=windows GOARCH=amd64 go build -o "$@"
+	GOOS=windows GOARCH=amd64 go build -o "$@" -ldflags '-extldflags "-static" -X main.version=${VERSION}'
diff --git a/main.go b/main.go
index 4033688..8aa9e96 100644
--- a/main.go
+++ b/main.go
@@ -10,7 +10,7 @@ import (
 	flag "github.com/spf13/pflag"
 )
 
-var version = "0.1.0"
+var version string
 
 const (
 	configErrorCode = 1
@@ -36,7 +36,7 @@ func main() {
 	flag.Parse()
 
 	if versionFlag {
-		fmt.Println("Tarpit version", version)
+		fmt.Println("tarpit version", version)
 		return
 	}
 
diff --git a/setuid_unix.go b/setuid_unix.go
index be2db7b..8782a48 100644
--- a/setuid_unix.go
+++ b/setuid_unix.go
@@ -1,3 +1,5 @@
+// +build linux darwin
+
 package main
 
 import (
diff --git a/setuid_windows.go b/setuid_windows.go
index 63ccc73..277ed12 100644
--- a/setuid_windows.go
+++ b/setuid_windows.go
@@ -1,3 +1,5 @@
+// +build windows
+
 package main
 
 import (