Make version stamping work for goinstall.

fuse/Makefile

@@ -26,13 +26,14 @@ GOFILES=\
 	timingfs.go \
 	timingrawfs.go \
 	types.go\
+	version.go \
 	version.gen.go \
 	xattr.go \
 
 include $(GOROOT)/src/Make.pkg
 
-version.gen.go:
-	echo "package fuse" > $@
-	git log -n1 --pretty=format:'const version = "%h (%cd)"' --date=iso >> $@
+version.gen.go: FORCE
+	sh genversion.sh > $@
 
+FORCE:
 

fuse/genversion.sh

+#!/bin/sh
+
+VERSION=\"$(git log -n1 --pretty=format:'%h (%cd)' --date=iso )\"
+
+cat <<EOF
+package fuse
+func init() {
+	version = new(string)
+	*version = ${VERSION}
+}
+EOF

fuse/misc.go

@@ -169,7 +169,10 @@ func ioctl(fd int, cmd int, arg uintptr) (int, int) {
 }
 
 func Version() string {
-	return version
+	if version != nil {
+		return *version
+	}
+	return "unknown"
 }
 
 func ReverseJoin(rev_components []string, sep string) string {

fuse/version.go

+package fuse
+
+// Autogenerated .go file can set this to a version string in its
+// init() file.
+var version *string