about summary refs log tree commit diff
path: root/stdlib
diff options
context:
space:
mode:
Diffstat (limited to 'stdlib')
-rw-r--r--stdlib/stdlib.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h
index ba5a231abf..be778edfe4 100644
--- a/stdlib/stdlib.h
+++ b/stdlib/stdlib.h
@@ -337,6 +337,9 @@ extern int putenv __P ((__const char *__string));
    If REPLACE is nonzero, overwrite an existing value.  */
 extern int setenv __P ((__const char *__name, __const char *__value,
 			int __replace));
+
+/* Remove the variable NAME from the environment.  */
+extern void unsetenv __P ((__const char *__name));
 #endif
 
 /* Execute the given line as a shell command.  */