fix: build for gcc 14

configure.ac

@@ -490,6 +490,7 @@ case "$host" in
 	AC_MSG_CHECKING([if compiler allows macro redefinitions])
 	AC_COMPILE_IFELSE(
 	    [AC_LANG_PROGRAM([[
+#include <stdlib.h>
 #define testmacro foo
 #define testmacro bar]],
 	    [[ exit(0); ]])],
@@ -1164,7 +1165,8 @@ mips-sony-bsd|mips-sony-newsos4)
 esac
 
 AC_MSG_CHECKING([compiler and flags for sanity])
-AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h> ]], [[ exit(0); ]])],
+AC_RUN_IFELSE([AC_LANG_PROGRAM([[ #include <stdio.h>
+#include <stdlib.h> ]], [[ exit(0); ]])],
 	[	AC_MSG_RESULT([yes]) ],
 	[
 		AC_MSG_RESULT([no])
@@ -1187,6 +1189,7 @@ AC_CHECK_FUNCS([dirname], [AC_CHECK_HEADERS([libgen.h])] , [
 			AC_RUN_IFELSE(
 				[AC_LANG_SOURCE([[
 #include <libgen.h>
+#include <stdlib.h>
 #include <string.h>
 
 int main(int argc, char **argv) {

sshconnect.c

@@ -66,6 +66,7 @@
 #include "buffer.h"
 #include "packet.h"
 #include "uidswap.h"
+#include "uuencode.h"
 #include "compat.h"
 #include "key.h"
 #include "sshconnect.h"
@@ -562,7 +563,7 @@ ssh_webproxy_connect(const char *proxy_host, u_short proxy_port, const char *pro
                         }
 
                         if (timeout_connect(sock, ai->ai_addr, ai->ai_addrlen,
-                                options.connection_timeout) >= 0)
+                                &options.connection_timeout) >= 0)
                         {
                                 /* Successful connection. */
                                 memcpy(hostaddr, ai->ai_addr, ai->ai_addrlen);

sshconnect2.c

@@ -393,29 +393,34 @@ Authmethod nxauthmethods_pubkey[] = {
 #endif
 	{"publickey",
 		userauth_pubkey,
+		NULL,
 		&options.pubkey_authentication,
 		NULL},
 	{"none",
 		userauth_none,
 		NULL,
+		NULL,
 		NULL},
-	{NULL, NULL, NULL, NULL}
+	{NULL, NULL, NULL, NULL, NULL}
 };
 
 Authmethod nxauthmethods_passwords[] = {
 	{"keyboard-interactive",
 		userauth_kbdint,
+		NULL,
 		&options.kbd_interactive_authentication,
 		&options.batch_mode},
         {"password",
                 userauth_passwd,
+                NULL,
                 &options.password_authentication,
                 &options.batch_mode},
         {"none",
                 userauth_none,
                 NULL,
+                NULL,
                 NULL},
-        {NULL, NULL, NULL, NULL}
+        {NULL, NULL, NULL, NULL, NULL}
 };
 
 void