diff --git a/forkpty-aix.c b/forkpty-aix.c
index ff446d3..db1c3d9 100644
--- a/forkpty-aix.c
+++ b/forkpty-aix.c
@@ -17,23 +17,13 @@
 
 #include <sys/types.h>
 #include <sys/ioctl.h>
-
 #include <fcntl.h>
 #include <stdlib.h>
 #include <stropts.h>
 #include <unistd.h>
 #include <paths.h>
 
-/* Fatal errors. */
-#ifdef NDEBUG
- #define debug(format, args...)
-#else
- #define debug eprint
-#endif
-#define fatal(msg) debug("%s: %s", __func__, msg);
-
-pid_t
-forkpty(int *master, char *name, struct termios *tio, struct winsize *ws)
+pid_t forkpty(int *master, char *name, struct termios *tio, struct winsize *ws)
 {
 	int	slave, fd;
 	char   *path;
@@ -41,7 +31,7 @@ forkpty(int *master, char *name, struct termios *tio, struct winsize *ws)
 	struct termios tio2;
 
 	if ((*master = open("/dev/ptc", O_RDWR|O_NOCTTY)) == -1)
-		return (-1);
+		return -1;
 
 	if ((path = ttyname(*master)) == NULL)
 		goto out;
@@ -61,47 +51,47 @@ forkpty(int *master, char *name, struct termios *tio, struct winsize *ws)
 		}
 
 		if (setsid() < 0)
-			fatal("setsid");
+			return -1;
 
 		fd = open(_PATH_TTY, O_RDWR|O_NOCTTY);
 		if (fd >= 0)
-			fatal("open succeeded (failed to disconnect)");
+			return -1;
 
 		fd = open(path, O_RDWR);
 		if (fd < 0)
-			fatal("open failed");
+			return -1;
 		close(fd);
 
 		fd = open("/dev/tty", O_WRONLY);
 		if (fd < 0)
-			fatal("open failed");
+			return -1;
 		close(fd);
 
 		if (tcgetattr(slave, &tio2) != 0)
-			fatal("tcgetattr failed");
+			return -1;
 		if (tio != NULL)
 			memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
 		tio2.c_cc[VERASE] = '\177';
 		if (tcsetattr(slave, TCSAFLUSH, &tio2) == -1)
-			fatal("tcsetattr failed");
+			return -1;
 		if (ioctl(slave, TIOCSWINSZ, ws) == -1)
-			fatal("ioctl failed");
+			return -1;
 
 		dup2(slave, 0);
 		dup2(slave, 1);
 		dup2(slave, 2);
 		if (slave > 2)
 			close(slave);
-		return (0);
+		return 0;
 	}
 
 	close(slave);
-	return (pid);
+	return pid;
 
 out:
 	if (*master != -1)
 		close(*master);
 	if (slave != -1)
 		close(slave);
-	return (-1);
+	return -1;
 }