1 files changed, 11 insertions, 2 deletions

diff --git a/llgo/third_party/gofrontend/libgo/go/os/env.go b/llgo/third_party/gofrontend/libgo/go/os/env.go
index d0494a47634..a4ede15e613 100644
--- a/llgo/third_party/gofrontend/libgo/go/os/env.go
+++ b/llgo/third_party/gofrontend/libgo/go/os/env.go
@@ -33,7 +33,7 @@ func ExpandEnv(s string) string {
 	return Expand(s, Getenv)
 }
 
-// isSpellSpecialVar reports whether the character identifies a special
+// isShellSpecialVar reports whether the character identifies a special
 // shell variable such as $*.
 func isShellSpecialVar(c uint8) bool {
 	switch c {
@@ -48,7 +48,7 @@ func isAlphaNum(c uint8) bool {
 	return c == '_' || '0' <= c && c <= '9' || 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z'
 }
 
-// getName returns the name that begins the string and the number of bytes
+// getShellName returns the name that begins the string and the number of bytes
 // consumed to extract it.  If the name is enclosed in {}, it's part of a ${}
 // expansion and two more bytes are needed than the length of the name.
 func getShellName(s string) (string, int) {
@@ -81,6 +81,15 @@ func Getenv(key string) string {
 	return v
 }
 
+// LookupEnv retrieves the value of the environment variable named
+// by the key. If the variable is present in the environment the
+// value (which may be empty) is returned and the boolean is true.
+// Otherwise the returned value will be empty and the boolean will
+// be false.
+func LookupEnv(key string) (string, bool) {
+	return syscall.Getenv(key)
+}
+
 // Setenv sets the value of the environment variable named by the key.
 // It returns an error, if any.
 func Setenv(key, value string) error {