From 84b5bf1e6b8cfad657b88f8b061e172e327ef970 Mon Sep 17 00:00:00 2001
From: Nicolas Boichat <drinkcat@chromium.org>
Date: Thu, 10 Sep 2020 17:06:37 +0800
Subject: [PATCH] Remove external function declarations

We need to redeclare functions that we already have.

This causes issues with recent toolchains:
init.c:100:14: error: redeclaration of 'getcwd' must have the 'overloadable' attribute
extern char *getcwd ();
             ^
/build/amd64-generic/usr/include/bits/unistd.h:158:8: note: previous overload of function is here
__NTH (getcwd (char *const __clang_pass_object_size __buf, size_t __size))
       ^

And also reduces the number of build warnings.

This forked repo does the same thing in this (large) cleanup patch:
https://github.com/quinot/taylor-uucp/commit/b599665ae1e085df0f96de5f50a738fceee02150
---
 unix/init.c | 30 ------------------------------
 1 file changed, 30 deletions(-)

diff --git a/unix/init.c b/unix/init.c
index d9d2147edd93..a9b7135be9f4 100644
--- a/unix/init.c
+++ b/unix/init.c
@@ -81,36 +81,6 @@
 #endif /* ! defined (MAXPATHLEN) */
 #endif /* HAVE_GETWD */
 
-/* External functions.  */
-#ifndef getlogin
-extern char *getlogin ();
-#endif
-#if GETPWNAM_DECLARATION_OK
-#ifndef getpwnam
-extern struct passwd *getpwnam ();
-#endif
-#endif
-#if GETPWUID_DECLARATION_OK
-#ifndef getpwuid
-extern struct passwd *getpwuid ();
-#endif
-#endif
-#if HAVE_GETCWD
-#ifndef getcwd
-extern char *getcwd ();
-#endif
-#endif
-#if HAVE_GETWD
-#ifndef getwd
-extern char *getwd ();
-#endif
-#endif
-#if HAVE_SYSCONF
-#ifndef sysconf
-extern long sysconf ();
-#endif
-#endif
-
 /* Initialize the system dependent routines.  We will probably be running
    suid to uucp, so we make sure that nothing is obviously wrong.  We
    save the login name since we will be losing the real uid.  */
-- 
2.28.0.526.ge36021eeef-goog