diff --git xterm-clean/Makefile.in xterm-workdir/Makefile.in
index bb6da23..9500664 100644
--- xterm-clean/Makefile.in
+++ xterm-workdir/Makefile.in
@@ -68,7 +68,7 @@ PIXMAPDIR_DEF	= @no_pixmapdir@-DPIXMAP_ROOTDIR=\"@PIXMAPDIR@/\"
 CPPFLAGS	= -I. -I$(srcdir) -DHAVE_CONFIG_H @CPPFLAGS@ -DDEFCLASS=\"@APP_CLASS@\" $(PIXMAPDIR_DEF) $(EXTRA_CPPFLAGS)
 CFLAGS		= @CFLAGS@ $(EXTRA_CFLAGS)
 LDFLAGS		= @LDFLAGS@ @EXTRA_LDFLAGS@
-LIBS		= @LIBS@
+LIBS		= @LIBS@ -lncursesw -ltinfow
 
 prefix		= @prefix@
 exec_prefix	= @exec_prefix@
diff --git xterm-clean/config.sub xterm-workdir/config.sub
index e4c4e09..272cd1c 100755
--- xterm-clean/config.sub
+++ xterm-workdir/config.sub
@@ -1737,7 +1737,7 @@ case $os in
 	# Now accept the basic system types.
 	# The portable systems comes first.
 	# Each alternative MUST end in a * to match a version number.
-	gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
+	gnu* | astral* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
 	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
 	     | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
diff --git xterm-clean/main.c xterm-workdir/main.c
index 3d2ad4c..a998b97 100644
--- xterm-clean/main.c
+++ xterm-workdir/main.c
@@ -92,6 +92,7 @@
 #include <xterm.h>
 #include <version.h>
 #include <graphics.h>
+#include <termios.h>
 
 /* xterm uses these X Toolkit resource names, which are exported in array */
 #undef XtNborderWidth
@@ -172,7 +173,7 @@ static GCC_NORETURN void HsSysError(int);
 #define KANJI
 #endif
 
-#ifdef linux
+#if defined(linux) || defined(__astral__)
 #define USE_SYSV_PGRP
 #define USE_SYSV_SIGNALS
 #define WTMP
@@ -315,7 +316,7 @@ ttyslot(void)
 #ifndef NOFILE
 #define NOFILE OPEN_MAX
 #endif
-#elif !(defined(VMS) || defined(WIN32) || defined(Lynx) || defined(__GNU__) || defined(__MVS__))
+#elif !(defined(VMS) || defined(WIN32) || defined(Lynx) || defined(__GNU__) || defined(__MVS__) || defined(__astral__))
 #include <sys/param.h>		/* for NOFILE */
 #endif
 
@@ -716,11 +717,12 @@ static struct {
 #endif
 
 #ifndef TAB3
-#if defined(OXTABS)
-#define TAB3 OXTABS
-#elif defined(XTABS)
-#define TAB3 XTABS
-#endif
+#define TAB3 0014000
+//#if defined(OXTABS)
+//#define TAB3 OXTABS
+//#elif defined(XTABS)
+//#define TAB3 XTABS
+//#endif
 #endif
 
 #ifndef TABDLY
@@ -3011,7 +3013,7 @@ main(int argc, char *argv[]ENVP_ARG)
     }
 #endif
 #endif
-#if defined(USE_ANY_SYSV_TERMIO) || defined(__MVS__) || defined(__minix)
+#if defined(USE_ANY_SYSV_TERMIO) || defined(__MVS__) || defined(__minix) || defined(__astral__)
     if (0 > (mode = fcntl(screen->respond, F_GETFL, 0)))
 	SysError(ERROR_F_GETFL);
 #ifdef O_NDELAY
@@ -3753,7 +3755,7 @@ ourValidShell(const char *pathname)
     return findValidShell(x_strtrim(resource.valid_shells), pathname);
 }
 
-#if defined(HAVE_GETUSERSHELL) && defined(HAVE_ENDUSERSHELL)
+#if defined(HAVE_GETUSERSHELL) && defined(HAVE_ENDUSERSHELL) && 0
 static Boolean
 validShell(const char *pathname)
 {
@@ -4496,7 +4498,7 @@ spawnXTerm(XtermWidget xw, unsigned line_speed)
 			/* make /dev/tty work */
 			ioctl(ttyfd, TCSETCTTY, 0);
 #endif
-#if ((defined(__GLIBC__) && defined(__FreeBSD_kernel__)) || defined(__GNU__)) && defined(TIOCSCTTY)
+#if ((defined(__GLIBC__) && defined(__FreeBSD_kernel__)) || defined(__GNU__) || defined(__astral__)) && defined(TIOCSCTTY)
 			/* make /dev/tty work */
 			ioctl(ttyfd, TIOCSCTTY, 0);
 #endif
diff --git xterm-clean/xterm.h xterm-workdir/xterm.h
index 89590cb..9a99f0c 100644
--- xterm-clean/xterm.h
+++ xterm-workdir/xterm.h
@@ -80,7 +80,7 @@
 #define HAVE_PUTENV 1
 #endif
 
-#if defined(CSRG_BASED) || defined(__GNU__) || defined(__minix)
+#if defined(CSRG_BASED) || defined(__GNU__) || defined(__minix) || defined(__astral__)
 #define USE_POSIX_TERMIOS 1
 #endif
 
@@ -176,7 +176,7 @@
 #define USE_SYSV_UTMP
 #endif
 
-#if defined(__GNU__) || defined(__MVS__) || defined(__osf__)
+#if defined(__GNU__) || defined(__MVS__) || defined(__osf__) || defined(__astral__)
 #define USE_TTY_GROUP
 #endif
 
diff --git xterm-clean/xterm_io.h xterm-workdir/xterm_io.h
index 130d365..72ebd01 100644
--- xterm-clean/xterm_io.h
+++ xterm-workdir/xterm_io.h
@@ -92,13 +92,14 @@
 #undef SYSV			/* pretend to be bsd (sgtty.h) */
 #endif /* macII */
 
-#ifdef __GNU__
+#if defined(__GNU__) || defined(__astral__)
 #define USE_POSIX_TERMIOS
 #define HAVE_POSIX_OPENPT 1
 #define HAVE_PTSNAME 1
 #define HAVE_GRANTPT_PTY_ISATTY 1
 #endif
 
+
 #if defined(__GLIBC__) && !(defined(linux) || defined(__GNU__))
 #define USE_POSIX_TERMIOS	/* GNU/KFreeBSD and GNU/KNetBSD */
 #endif
@@ -212,7 +213,7 @@
 #undef FIONCLEX
 #endif /* macII */
 
-#if defined(__QNX__) || defined(__GNU__) || defined(__MVS__) || defined(__osf__)
+#if defined(__QNX__) || defined(__GNU__) || defined(__MVS__) || defined(__osf__) || defined(__astral__)
 #undef TIOCSLTC			/* <sgtty.h> conflicts with <termios.h> */
 #undef TIOCSLTC
 #endif