diff --git a/setter/projects/make/xenix/Makefile b/setter/projects/make/xenix/Makefile
new file mode 100644
index 0000000..7186e2a
--- /dev/null
+++ b/setter/projects/make/xenix/Makefile
@@ -0,0 +1,72 @@
+# /****************************************************************************
+# Aaru Data Preservation Suite
+# -----------------------------------------------------------------------------
+#
+#     Author(s)      : Natalia Portillo
+#
+# --[ License ] ---------------------------------------------------------------
+#      This program is free software: you can redistribute it and/or modify
+#      it under the terms of the GNU General Public License as
+#      published by the Free Software Foundation, either version 3 of the
+#      License, or (at your option) any later version.
+#
+#      This program is distributed in the hope that it will be useful,
+#      but WITHOUT ANY WARRANTY; without even the implied warranty of
+#      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#      GNU General Public License for more details.
+#
+#      You should have received a copy of the GNU General Public License
+#      along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+# -----------------------------------------------------------------------------
+# Copyright (C) 2011-2026 Natalia Portillo
+# *****************************************************************************/
+
+# Directory with main and log source files
+MAINDIR  = ../../../src
+
+# Directory with main platform source files
+SRCDIR = $(MAINDIR)/unix
+
+# Directory with subplatform source files
+PLATDIR =
+
+# Object files
+OBJS	= $(MAINDIR)/log.o $(MAINDIR)/main.o $(SRCDIR)/attr.o $(SRCDIR)/dirdepth.o \
+		  $(SRCDIR)/files.o $(SRCDIR)/links.o $(SRCDIR)/perms.o $(SRCDIR)/rsrcfork.o \
+		  $(SRCDIR)/time.o $(SRCDIR)/volume.o $(SRCDIR)/xattr.o $(SRCDIR)/deleted.o \
+		  $(SRCDIR)/filename.o $(SRCDIR)/frag.o $(SRCDIR)/os.o $(SRCDIR)/sparse.o \
+		  $(SRCDIR)/mkdir.o
+
+# Source files
+SOURCE	= $(MAINDIR)/log.c $(MAINDIR)/main.c $(SRCDIR)/attr.c $(SRCDIR)/dirdepth.c \
+		  $(SRCDIR)/files.c $(SRCDIR)/links.c $(SRCDIR)/perms.c $(SRCDIR)/rsrcfork.c \
+		  $(SRCDIR)/time.c $(SRCDIR)/volume.c $(SRCDIR)/xattr.c $(SRCDIR)/deleted.c \
+		  $(SRCDIR)/filename.c $(SRCDIR)/frag.c $(SRCDIR)/os.c $(SRCDIR)/sparse.c \
+		  $(SRCDIR)/mkdir.c
+
+# Header files
+HEADER	= $(MAINDIR)/log.h $(MAINDIR)/main.h $(SRCDIR)/perms.h $(SRCDIR)/time.h \
+		  $(SRCDIR)/volume.h
+
+# Outfile
+OUT	= fssetter
+
+# Linker flags
+LFLAGS	=
+
+# Compiler flags. This needs the definitions on how to find statfs.h as there is no autodetection
+# BSD 2.11 defines statfs to be in sys/mount.h
+CFLAGS  = -DHAVE_SYS_MOUNT_H
+
+all: fssetter
+
+fssetter: $(OBJS)
+	$(CC) -o $@ $^ $(LFLAGS)
+
+%.o: %.c $(HEADER)
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+# clean house
+clean:
+	rm -f $(OBJS) $(OUT)
diff --git a/setter/projects/make/xenix/README.md b/setter/projects/make/xenix/README.md
new file mode 100644
index 0000000..e0df7c8
--- /dev/null
+++ b/setter/projects/make/xenix/README.md
@@ -0,0 +1 @@
+This directory contains the Makefile for XENIX.
diff --git a/setter/src/main.c b/setter/src/main.c
index 5bd39aa..e143622 100644
--- a/setter/src/main.c
+++ b/setter/src/main.c
@@ -25,6 +25,9 @@ Copyright (C) 2011-2026 Natalia Portillo
 #if defined(__STDC__) /* XENIX again */
 #include <stddef.h>
 #endif
+#if defined(M_XENIX) && !defined(M_SYSV3)
+typedef long size_t;
+#endif
 #include <stdio.h>
 #include <string.h>
 
diff --git a/setter/src/unix/frag.c b/setter/src/unix/frag.c
index 9157dea..79542c7 100644
--- a/setter/src/unix/frag.c
+++ b/setter/src/unix/frag.c
@@ -39,6 +39,10 @@ Copyright (C) 2011-2026 Natalia Portillo
 #include "../include/defs.h"
 #include "../log.h"
 
+#if M_XENIX
+typedef long size_t;
+#endif
+
 #if defined(__STDC__)
 void Fragmentation(const char* path, size_t clusterSize)
 #else
diff --git a/setter/src/unix/links.c b/setter/src/unix/links.c
index 514d490..bd02cb1 100644
--- a/setter/src/unix/links.c
+++ b/setter/src/unix/links.c
@@ -87,9 +87,11 @@ char path;
 
     if(ret) { log_write("Error %d creating hard link.\n", errno); }
 
+#if !defined(M_XENIX) && !defined(COHERENT) /* Predates symlinks */
     ret = symlink("TARGET", "SYMBOLIC");
 
     if(ret) { log_write("Error %d creating symbolic link.\n", errno); }
+#endif
 
 #if defined(__APPLE__) && defined(__MACH__)
     ret = mkdir("TARGETDIR", 0755);
diff --git a/setter/src/unix/mkdir.c b/setter/src/unix/mkdir.c
new file mode 100644
index 0000000..c30da5e
--- /dev/null
+++ b/setter/src/unix/mkdir.c
@@ -0,0 +1,37 @@
+/****************************************************************************
+Aaru Data Preservation Suite
+-----------------------------------------------------------------------------
+
+    Author(s)      : Natalia Portillo
+
+--[ License ] ---------------------------------------------------------------
+     This program is free software: you can redistribute it and/or modify
+     it under the terms of the GNU General Public License as
+     published by the Free Software Foundation, either version 3 of the
+     License, or (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful,
+     but WITHOUT ANY WARRANTY; without even the implied warranty of
+     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+     GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+-----------------------------------------------------------------------------
+Copyright (C) 2011-2026 Natalia Portillo
+*****************************************************************************/
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if defined(__STDC__)
+int mkdir(const char *path, int mode)
+#else
+int mkdir(path, mode)
+char *path;
+int mode;
+#endif
+{
+    return mknod(path, S_IFDIR | mode, 0);
+}
diff --git a/setter/src/unix/perms.h b/setter/src/unix/perms.h
index efbda36..41db84e 100644
--- a/setter/src/unix/perms.h
+++ b/setter/src/unix/perms.h
@@ -29,6 +29,10 @@ Copyright (C) 2011-2026 Natalia Portillo
 typedef int mode_t;
 #endif
 
+#if defined(M_XENIX)
+typedef int mode_t;
+#endif
+
 typedef struct
 {
     char   filename[256];
diff --git a/setter/src/unix/sparse.c b/setter/src/unix/sparse.c
index 8bcc736..a4341b6 100644
--- a/setter/src/unix/sparse.c
+++ b/setter/src/unix/sparse.c
@@ -38,6 +38,12 @@ Copyright (C) 2011-2026 Natalia Portillo
 #include <sys/stat.h>
 #include <unistd.h>
 
+#ifdef M_XENIX
+#define SEEK_SET 0
+#define SEEK_CUR 1
+#define SEEK_END 2
+#endif
+
 #include "../include/consts.h"
 #include "../include/defs.h"
 #include "../log.h"
diff --git a/setter/src/unix/volume.c b/setter/src/unix/volume.c
index 303abd3..9d071b5 100644
--- a/setter/src/unix/volume.c
+++ b/setter/src/unix/volume.c
@@ -46,9 +46,14 @@ Copyright (C) 2011-2026 Natalia Portillo
 #include <sys/vfs.h>
 #endif /* Rhapsody DR1 */
 
-#endif // __NeXT__
 #endif /* __NeXT__ */
 
+#ifdef M_XENIX
+#undef HAVE_SYS_STATFS_H
+#undef HAVE_SYS_MOUNT_H
+typedef long size_t;
+#endif
+
 #ifdef HAVE_SYS_STATFS_H
 #include <sys/statfs.h>
 #endif
@@ -91,6 +96,14 @@ char *path;
 size_t *clusterSize;
 #endif
 {
+#ifdef M_XENIX
+    log_write("Volume information:\n");
+    log_write("\tPath: %s\n", path);
+    *clusterSize = 1024;
+
+    return;
+#else
+
 #ifdef HAVE_SYS_STATVFS_H
     struct statvfs buf;
 #else