os/user: use stdlib version of this package

GNUmakefile

@@ -374,6 +374,7 @@ TEST_PACKAGES_LINUX := \
 	io/ioutil \
 	mime/quotedprintable \
 	net \
+	os/user \
 	strconv \
 	testing/fstest \
 	text/tabwriter \
@@ -384,6 +385,7 @@ TEST_PACKAGES_DARWIN := $(TEST_PACKAGES_LINUX)
 TEST_PACKAGES_WINDOWS := \
 	compress/flate \
 	crypto/hmac \
+	os/user \
 	strconv \
 	text/template/parse \
 	$(nil)

compileopts/config.go

@@ -78,6 +78,7 @@ func (c *Config) BuildTags() []string {
 	tags = append(tags, []string{
 		"tinygo",                                     // that's the compiler
 		"purego",                                     // to get various crypto packages to work
+		"osusergo",                                   // to get os/user to work
 		"math_big_pure_go",                           // to get math/big to work
 		"gc." + c.GC(), "scheduler." + c.Scheduler(), // used inside the runtime package
 		"serial." + c.Serial()}...) // used inside the machine package

loader/goroot.go

@@ -246,7 +246,6 @@ func pathsToOverride(goMinor int, needsSyscallPackage bool) map[string]bool {
 		"net/":                  true,
 		"net/http/":             false,
 		"os/":                   true,
-		"os/user/":              false,
 		"reflect/":              false,
 		"runtime/":              false,
 		"sync/":                 true,