Initial s390-tools-2.0.0 import

This commit is based on the s390-tools-1.39.0 version.

Changes on top of s390-tools-1.39.0:

 - Add MIT license to all source files
 - Add LICENSE file
 - Transform REAMDE to README.md (markdown)
 - Add AUTHORS.md file
 - Add CONTRIBUTING.md file
 - Move changelog from README to CHANGELOG.md file

Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>

zdsfs/Makefile

@@ -0,0 +1,51 @@
+include ../common.mak
+
+libs =	$(rootdir)/libzds/libzds.a \
+	$(rootdir)/libvtoc/libvtoc.a \
+	$(rootdir)/libu2s/libu2s.a \
+	$(rootdir)/libutil/libutil.a
+
+ifeq (${HAVE_FUSE},0)
+
+all:
+	$(SKIP) HAVE_FUSE=0
+
+install:
+	$(SKIP) HAVE_FUSE=0
+
+else
+
+check_dep:
+	$(call check_dep, \
+		"zdsfs", \
+		"fuse.h", \
+		"fuse-devel or libfuse-dev", \
+		"HAVE_FUSE=0")
+
+ifneq ($(shell sh -c 'command -v pkg-config'),)
+FUSE_CFLAGS = $(shell pkg-config --silence-errors --cflags fuse)
+FUSE_LDLIBS = $(shell pkg-config --silence-errors --libs fuse)
+else
+FUSE_CFLAGS = -D_FILE_OFFSET_BITS=64 -I/usr/include/fuse
+FUSE_LDLIBS = -lfuse
+endif
+ALL_CPPFLAGS += -DSYSFS
+ALL_CFLAGS += -DHAVE_SETXATTR -pthread $(FUSE_CFLAGS)
+LDLIBS += $(FUSE_LDLIBS) -lpthread -lrt -lm
+
+all: check_dep zdsfs
+
+zdsfs: zdsfs.o $(libs)
+
+install: all
+	$(INSTALL) -d -m 755 $(DESTDIR)$(USRBINDIR) $(DESTDIR)$(MANDIR)/man1
+	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 755 zdsfs $(DESTDIR)$(USRBINDIR)
+	$(INSTALL) -g $(GROUP) -o $(OWNER) -m 644 zdsfs.1 \
+		$(DESTDIR)$(MANDIR)/man1
+
+endif
+
+clean:
+	rm -f *.o *~ zdsfs core
+
+.PHONY: all install clean