move OSX specific calls to build tagged files

cmd/ipfs/mount_unix.go

@@ -4,9 +4,6 @@ package main
 
 import (
 	"fmt"
-	"runtime"
-	"strings"
-	"syscall"
 
 	"github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/gonuts/flag"
 	"github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/commander"
@@ -98,23 +95,3 @@ func mountIpns(node *core.IpfsNode, nsdir, fsdir string) <-chan error {
 
 	return done
 }
-
-func osxFuseCheck() error {
-	// on OSX, check FUSE version.
-	if runtime.GOOS != "darwin" {
-		return nil
-	}
-
-	ov, err := syscall.Sysctl("osxfuse.version.number")
-	if err != nil {
-		return err
-	}
-
-	if strings.HasPrefix(ov, "2.7.") || strings.HasPrefix(ov, "2.8.") {
-		return nil
-	}
-
-	return fmt.Errorf("osxfuse version %s not supported.\n%s\n%s", ov,
-		"Older versions of osxfuse have kernel panic bugs; please upgrade!",
-		"https://github.com/jbenet/go-ipfs/issues/177")
-}

cmd/ipfs/mountutils_darwin.go

+package main
+
+import (
+	"runtime"
+	"strings"
+	"syscall"
+)
+
+func osxFuseCheck() error {
+	// on OSX, check FUSE version.
+	if runtime.GOOS != "darwin" {
+		return nil
+	}
+
+	ov, err := syscall.Sysctl("osxfuse.version.number")
+	if err != nil {
+		return err
+	}
+
+	if strings.HasPrefix(ov, "2.7.") || strings.HasPrefix(ov, "2.8.") {
+		return nil
+	}
+
+	return fmt.Errorf("osxfuse version %s not supported.\n%s\n%s", ov,
+		"Older versions of osxfuse have kernel panic bugs; please upgrade!",
+		"https://github.com/jbenet/go-ipfs/issues/177")
+}

cmd/ipfs/mountutils_linux.go

+package main
+
+func osxFuseCheck() error {
+	return nil
+}