Index: exp_clib.c
==================================================================
--- exp_clib.c
+++ exp_clib.c
@@ -2043,11 +2043,16 @@
 
 #endif /* SYSV3 */
 #endif /* DO_SETSID */
 
 	/* save error fd while we're setting up new one */
+#ifdef F_DUPFD_CLOEXEC
+	errorfd = fcntl(2,F_DUPFD_CLOEXEC,3);
+#else
 	errorfd = fcntl(2,F_DUPFD,3);
+	fcntl(errorfd, F_SETFD, FD_CLOEXEC);
+#endif /* F_DUPFD_CLOXEC */
 	/* and here is the macro to restore it */
 #define restore_error_fd {close(2);fcntl(errorfd,F_DUPFD,2);}
 
 	if (exp_autoallocpty) {
 

Index: exp_command.c
==================================================================
--- exp_command.c
+++ exp_command.c
@@ -1159,11 +1159,16 @@
 
     /* save stderr elsewhere to avoid BSD4.4 bogosity that warns */
     /* if stty finds dev(stderr) != dev(stdout) */
 
     /* save error fd while we're setting up new one */
+#ifdef F_DUPFD_CLOEXEC
+    errorfd = fcntl(2,F_DUPFD_CLOEXEC,3);
+#else
     errorfd = fcntl(2,F_DUPFD,3);
+    fcntl(errorfd, F_SETFD, FD_CLOEXEC);
+#endif /* F_DUPFD_CLOXEC */
     /* and here is the macro to restore it */
 #define restore_error_fd {close(2);fcntl(errorfd,F_DUPFD,2);}
 
     close(0);
     close(1);