diff -uNr ttyrec-1.0.8/ttyrec.c ttyrec-1.0.8/ttyrec.c.patch
--- ttyrec-1.0.8/ttyrec.c	2022-10-14 23:15:59.670392769 +0300
+++ ttyrec-1.0.8/ttyrec.c.patch	2022-10-14 23:25:00.418452092 +0300
@@ -48,12 +48,13 @@
 #include <sys/ioctl.h>
 #include <sys/time.h>
 #include <sys/file.h>
-#include <sys/signal.h>
+#include <signal.h>
 #include <stdio.h>
 #include <time.h>
 #include <unistd.h>
 #include <string.h>
 #include <stdlib.h>
+#include <sys/wait.h>
 
 #if defined(SVR4)
 #include <fcntl.h>
@@ -74,6 +75,35 @@
 #include <libutil.h>
 #endif
 
+#ifdef __ANDROID__
+#define HAVE_openpty
+int openpty(int *amaster, int *aslave, char *name, struct termios *termp, struct winsize *winp)
+{
+       char buf[512];
+       int master, slave;
+
+       master = open("/dev/ptmx", O_RDWR);
+       if (master == -1) return -1;
+       if (grantpt(master) || unlockpt(master) || ptsname_r(master, buf, sizeof buf)) goto fail;
+
+       slave = open(buf, O_RDWR | O_NOCTTY);
+       if (slave == -1) goto fail;
+
+       /* XXX Should we ignore errors here?  */
+       if (termp) tcsetattr(slave, TCSAFLUSH, termp);
+       if (winp) ioctl(slave, TIOCSWINSZ, winp);
+
+       *amaster = master;
+       *aslave = slave;
+       if (name != NULL) strcpy(name, buf);
+       return 0;
+
+fail:
+       close(master);
+       return -1;
+}
+#endif
+
 #if defined(SVR4) && !defined(CDEL)
 #if defined(_POSIX_VDISABLE)
 #define CDEL _POSIX_VDISABLE
@@ -156,7 +186,7 @@
 
 	shell = getenv("SHELL");
 	if (shell == NULL)
-		shell = "/bin/sh";
+		shell = "@TERMUX_PREFIX@/bin/sh";
 
 	getmaster();
 	fixtty();
@@ -203,15 +233,11 @@
 void
 finish()
 {
-#if defined(SVR4)
 	int status;
-#else /* !SVR4 */
-	union wait status;
-#endif /* !SVR4 */
 	register int pid;
 	register int die = 0;
 
-	while ((pid = wait3((int *)&status, WNOHANG, 0)) > 0)
+	while ((pid = wait4(-1, (int *)&status, WNOHANG, 0)) > 0)
 		if (pid == child)
 			die = 1;