diff --git libarchive-clean/build/autoconf/config.sub libarchive-workdir/build/autoconf/config.sub
index dba16e8..564ee86 100755
--- libarchive-clean/build/autoconf/config.sub
+++ libarchive-workdir/build/autoconf/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* | 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 libarchive-workdir/build/cmake/Platform/Astral.cmake libarchive-workdir/build/cmake/Platform/Astral.cmake
new file mode 100644
index 0000000..54a156b
--- /dev/null
+++ libarchive-workdir/build/cmake/Platform/Astral.cmake
@@ -0,0 +1 @@
+include(Platform/UnixPaths)