Use internal on_exit function as on_exit is not available on musl libc Bug: https://bugs.gentoo.org/898066
--- a/common.h
+++ b/common.h
@@ -372,3 +372,7 @@ void sasl_defaults_free(tsasl_defaults *sd);
 int ldapvi_sasl_interact(LDAP *ld, unsigned flags, void *defaults, void *p);
 
 void fdcp(int fdsrc, int fddst);
+
+#ifndef HAVE_ON_EXIT
+int on_exit(void (*function)(int, void *), void *arg);
+#endif
--- a/ldapvi.c
+++ b/ldapvi.c
@@ -17,6 +17,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+#include <stdio.h>
 #include <curses.h>
 #include <signal.h>
 #include <term.h>
--- a/misc.c
+++ b/misc.c
@@ -15,6 +15,7 @@
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
+#include <stdio.h>
 #include <curses.h>
 #include <term.h>
 #include "common.h"
--- a/parse.c
+++ b/parse.c
@@ -18,6 +18,7 @@
 #define _XOPEN_SOURCE
 #include <unistd.h>
 #include <crypt.h>
+#include <stdio.h>
 #include "common.h"
 
 #define fast_g_string_append_c(gstring, c)				\
--- a/parseldif.c
+++ b/parseldif.c
@@ -17,6 +17,7 @@
  */
 #define _XOPEN_SOURCE
 #include <unistd.h>
+#include <stdio.h>
 #include "common.h"
 
 #define fast_g_string_append_c(gstring, c)				\
--- a/port.c
+++ b/port.c
@@ -31,6 +31,7 @@
 #include <unistd.h>
 
 #include "config.h"
+#include "common.h"
 
 #if defined(HAVE_OPENSSL)
 #include <openssl/sha.h>