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-rw-r--r--string/envz.h26
1 files changed, 13 insertions, 13 deletions
diff --git a/string/envz.h b/string/envz.h
index fd8865711d..dfd5e8aeb6 100644
--- a/string/envz.h
+++ b/string/envz.h
@@ -1,7 +1,5 @@
 /* Routines for dealing with '\0' separated environment vectors
-
    Copyright (C) 1995, 1996 Free Software Foundation, Inc.
-
    Written by Miles Bader <miles@gnu.ai.mit.edu>
 
    This program is free software; you can redistribute it and/or
@@ -19,7 +17,9 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
 #ifndef __ENVZ_H__
-#define __ENVZ_H__
+
+#define __ENVZ_H__	1
+#include <features.h>
 
 #include <errno.h>
 
@@ -28,13 +28,13 @@
 #include <argz.h>
 
 /* Returns a pointer to the entry in ENVZ for NAME, or 0 if there is none.  */
-char *envz_entry __P ((__const char *__envz, size_t __envz_len,
-		       __const char *__name));
+extern char *envz_entry __P ((__const char *__envz, size_t __envz_len,
+			      __const char *__name));
 
 /* Returns a pointer to the value portion of the entry in ENVZ for NAME, or 0
    if there is none.  */
-char *envz_get __P ((__const char *__envz, size_t __envz_len,
-		     __const char *__name));
+extern char *envz_get __P ((__const char *__envz, size_t __envz_len,
+			    __const char *__name));
 
 /* Adds an entry for NAME with value VALUE to ENVZ & ENVZ_LEN.  If an entry
    with the same name already exists in ENVZ, it is removed.  If VALUE is
@@ -42,17 +42,17 @@ char *envz_get __P ((__const char *__envz, size_t __envz_len,
    return NULL, although envz_entry will still return an entry; this is handy
    because when merging with another envz, the null entry can override an
    entry in the other one.  Null entries can be removed with envz_strip ().  */
-error_t envz_add __P ((char **__envz, size_t *__envz_len,
-		       __const char *__name, __const char *__value));
+extern error_t envz_add __P ((char **__envz, size_t *__envz_len,
+			      __const char *__name, __const char *__value));
 
 /* Adds each entry in ENVZ2 to ENVZ & ENVZ_LEN, as if with envz_add().  If
    OVERRIDE is true, then values in ENVZ2 will supercede those with the same
    name in ENV, otherwise not.  */
-error_t envz_merge __P ((char **__envz, size_t *__envz_len,
-			 __const char *__envz2, size_t __envz2_len,
-			 int __override));
+extern error_t envz_merge __P ((char **__envz, size_t *__envz_len,
+				__const char *__envz2, size_t __envz2_len,
+				int __override));
 
 /* Remove null entries.  */
-void envz_strip __P ((char **__envz, size_t *__envz_len));
+extern void envz_strip __P ((char **__envz, size_t *__envz_len));
 
 #endif /* __ENVZ_H__ */