diff --git readline-clean/support/config.sub readline-workdir/support/config.sub
index 9b62e37..12d8ea2 100644
--- readline-clean/support/config.sub
+++ readline-workdir/support/config.sub
@@ -1723,7 +1723,7 @@ case $os in
 	# Now accept the basic system types.
 	# The portable systems comes first.
 	# Each alternative MUST end in a * to match a version number.
-	gnu* | android* | bsd* | mach* | minix* | genix* | ultrix* | irix* \
+	gnu* | android* | astral* |bsd* | mach* | minix* | genix* | ultrix* | irix* \
 	     | *vms* | esix* | aix* | cnk* | sunos | sunos[34]* \
 	     | hpux* | unos* | osf* | luna* | dgux* | auroraux* | solaris* \
 	     | sym* |  plan9* | psp* | sim* | xray* | os68k* | v88r* \
diff --git readline-clean/support/shlib-install readline-workdir/support/shlib-install
index 661355d..8c14919 100644
--- readline-clean/support/shlib-install
+++ readline-workdir/support/shlib-install
@@ -118,7 +118,7 @@ INSTALL_LINK2='${echo} cd $INSTALLDIR && ${echo} ${LN} $LIBNAME $LINK2'
 # Create symlinks to the installed library.  This section is incomplete.
 #
 case "$host_os-$host_vendor" in
-*linux*|freebsd*|dragonfly*)
+*linux*|freebsd*|dragonfly*|astral*)
 	# libname.so.M -> libname.so.M.N
 	${echo} ${RM} ${INSTALLDIR}/$LINK2
 	if [ -z "$uninstall" ]; then
diff --git readline-clean/support/shobj-conf readline-workdir/support/shobj-conf
index cd7634d..c72d34a 100644
--- readline-clean/support/shobj-conf
+++ readline-workdir/support/shobj-conf
@@ -123,7 +123,7 @@ sunos5*|solaris2*)
 	;;
 
 # All versions of Linux (including Gentoo/FreeBSD) or the semi-mythical GNU Hurd.
-linux*-*|gnu*-*|k*bsd*-gnu-*|midnightbsd*|freebsd*|dragonfly*)
+linux*-*|gnu*-*|k*bsd*-gnu-*|midnightbsd*|freebsd*|dragonfly*|astral*)
 	SHOBJ_CFLAGS=-fPIC
 	SHOBJ_LD='${CC}'
 	SHOBJ_LDFLAGS='-shared -Wl,-soname,$@'