https://bugs.gentoo.org/944988
https://944988.bugs.gentoo.org/attachment.cgi?id=957836

--- uucp-1.07/time.c
+++ uucp-1.07/time.c
@@ -39,14 +39,6 @@
 #include "uudefs.h"
 #include "uuconf.h"
 
-/* External functions.  */
-#ifndef time
-extern time_t time ();
-#endif
-#ifndef localtime
-extern struct tm *localtime ();
-#endif
-
 /* See if the current time matches a time span.  If it does, return
    TRUE, set *pival to the value for the matching span, and set
    *pcretry to the retry for the matching span.  Otherwise return
--- uucp-1.07/unix/filnam.c
+++ uucp-1.07/unix/filnam.c
@@ -73,9 +73,6 @@
 #endif
 
 /* External functions.  */
-#ifndef lseek
-extern off_t lseek ();
-#endif
 
 #define ZCHARS \
   "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"
--- uucp-1.07/unix/fsusg.c
+++ uucp-1.07/unix/fsusg.c
@@ -23,8 +23,6 @@
 #include "sysdep.h"
 #include "fsusg.h"
 
-int statfs ();
-
 #if HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif
@@ -53,10 +51,7 @@
 #include <sys/dustat.h>
 #endif
 
-#if HAVE_SYS_STATVFS_H		/* SVR4.  */
 #include <sys/statvfs.h>
-int statvfs ();
-#endif
 
 #if HAVE_USTAT_H		/* SVR2 and others.  */
 #include <ustat.h>
--- uucp-1.07/unix/lock.c
+++ uucp-1.07/unix/lock.c
@@ -70,9 +70,6 @@
 #define SEEK_SET 0
 #endif
 
-#ifndef localtime
-extern struct tm *localtime ();
-#endif
 
 #if HAVE_QNX_LOCKFILES
 static boolean fsqnx_stale P((unsigned long ipid, unsigned long inme,
--- uucp-1.07/unix/loctim.c
+++ uucp-1.07/unix/loctim.c
@@ -11,10 +11,6 @@
 
 #include "system.h"
 
-#ifndef localtime
-extern struct tm *localtime ();
-#endif
-
 void
 usysdep_localtime (itime, q)
      long itime;
--- uucp-1.07/unix/mail.c
+++ uucp-1.07/unix/mail.c
@@ -34,10 +34,6 @@
 #include <time.h>
 #endif
 
-#ifndef ctime
-extern char *ctime ();
-#endif
-
 /* Mail a message to a user.  */
 
 boolean
--- uucp-1.07/unix/opensr.c
+++ uucp-1.07/unix/opensr.c
@@ -57,9 +57,6 @@
 #define FD_CLOEXEC 1
 #endif
 
-#ifndef time
-extern time_t time ();
-#endif
 
 /* Open a file to send to another system, and return the mode and
    the size.  */
--- uucp-1.07/unix/portnm.c
+++ uucp-1.07/unix/portnm.c
@@ -13,9 +13,7 @@
 #include <sys/socket.h>
 #endif
 
-#ifndef ttyname
-extern char *ttyname ();
-#endif
+#include <unistd.h>
 
 /* Get the port name of standard input.  I assume that Unix systems
    generally support ttyname.  If they don't, this function can just
--- uucp-1.07/unix/proctm.c
+++ uucp-1.07/unix/proctm.c
@@ -70,9 +70,6 @@
    and on some systems, such as Ultrix 4.0, clock_t is int.  We don't
    leave it out entirely because on some systems, such as System III,
    the declaration is necessary for correct compilation.  */
-#ifndef times
-extern long times ();
-#endif
 #endif /* TIMES_DECLARATION_OK */
 
 #ifdef _SC_CLK_TCK
@@ -98,15 +95,6 @@
 
 #endif /* HAVE_TIMES */
 
-#ifndef time
-extern time_t time ();
-#endif
-#if HAVE_SYSCONF
-#ifndef sysconf
-extern long sysconf ();
-#endif
-#endif
-
 /* Get the time in seconds and microseconds; this need only work
    within the process when called from the system independent code.
    It is also called by ixsysdep_time.  */
--- uucp-1.07/unix/time.c
+++ uucp-1.07/unix/time.c
@@ -9,10 +9,6 @@
 
 #include "system.h"
 
-#ifndef time
-extern time_t time ();
-#endif
-
 /* Get the time in seconds since the epoch, with optional
    microseconds.  We use ixsysdep_process_time to get the microseconds
    if it will work (it won't if it uses times, since that returns a
--- uucp-1.07/unix/trunc.c
+++ uucp-1.07/unix/trunc.c
@@ -25,11 +25,6 @@
 #define SEEK_SET 0
 #endif
 
-/* External functions.  */
-#ifndef lseek
-extern off_t lseek ();
-#endif
-
 /* Truncate a file to zero length.  If this fails, it closes and
    removes the file.  We support a number of different means of
    truncation, which is probably a waste of time since this function
--- uucp-1.07/unix/wldcrd.c
+++ uucp-1.07/unix/wldcrd.c
@@ -64,7 +64,7 @@
     ulog (LOG_FATAL, "fsysdep_wildcard: %s: Can't happen", zfile);
 #endif
 
-  if (glob (zfile, 0, (int (*) ()) NULL, &sSglob) != 0)
+  if (glob (zfile, 0, (int (*) (const char*, int)) NULL, &sSglob) != 0)
     sSglob.gl_pathc = 0;
   iSglob = 0;
   return TRUE;
--- uucp-1.07/uuconf/cmdarg.c
+++ uucp-1.07/uuconf/cmdarg.c
@@ -34,7 +34,7 @@
 #if HAVE_STRCASECMP
 #undef strcasecmp
 #endif
-extern int strcmp (), strcasecmp ();
+
 
 /* Look up a command with arguments in a table and execute it.  */