merge 2.0pre5 release from devel

* devel: (446 commits)
  update version to 2.0pre5
  Make: stop creating drives in /etc/dosemu
  add fdtarball to archive
  spec: remove wrong --with-fdtarball
  Make: fix to work with multiple git workplaces
  add make-tag.sh script
  Update NEWS for -pre5
  undefault KVM for x86_64, it is not ready yet [#116]
  sdl: unifdef -DUPDATE_BY_RECTS=0 sdl.c
  sdl: raise window after creation
  dpmi: get the stack bottom with alloca()
  clang is now fully supported [fixes #160]
  simx86: fix regression of 700149e [#160]
  use uintptr_t instead of ptrdiff_t in ringbuf.c
  memory: clang does not support NULL-based ptr arithmetic [#160]
  disks: display target buffer during extended read
  disks: use hex notation for disk numbers in debug
  disks.h: use explicit-size types (fixes regression of 00a340a, PR #161)
  clang is now finally (barely) supported
  dpmi: remove the use of register variable for stack pointer
  ...

COPYING.DOSEMU

@@ -21,7 +21,7 @@
     are copyrighted under GPLv2.
 
 3.  Parts of the code not covered by the GPL are marked explicitly
-    within the code, and the copyrights are also at the end of this
+    within the code, and/or their copyrights are at the end of this
     file.
 
 4.  There are no restrictions to run any (proprietary or free) DOS software

INSTALL

@@ -2,7 +2,7 @@ DOSEMU installation instructions (from source)
 ==============================================
 
 -> REQUIREMENTS for DOSEMU:
-    - gcc >= 3.3
+    - gcc >= 3.3 or clang >= 3.7.0
     - glibc >= 2.3.3
     - Linux >= 3.16 (with older version there may be some problems on x86_64)
     - x86 (i386/x86-64) target CPU

Makefile

@@ -25,8 +25,6 @@ dosbin:
 
 docs:
 	@$(MAKE) SUBDIR:=doc -C src/doc all
-
-docsinstall:
 	@$(MAKE) SUBDIR:=doc -C src/doc install
 
 docsclean:
@@ -35,12 +33,16 @@ docsclean:
 $(PACKAGE_NAME).spec: $(PACKAGE_NAME).spec.in VERSION
 	@$(MAKE) -C src ../$@
 
-GIT_REV := .git/$(shell git rev-parse --symbolic-full-name HEAD)
+GIT_SYM := $(shell git rev-parse --symbolic-full-name HEAD)
+GIT_REV := $(shell git rev-parse --git-path $(GIT_SYM))
 
 $(PACKETNAME).tar.gz: $(GIT_REV) $(PACKAGE_NAME).spec
 	rm -f $(PACKETNAME).tar.gz
 	git archive -o $(PACKETNAME).tar --prefix=$(PACKETNAME)/ HEAD
 	tar rf $(PACKETNAME).tar --add-file=$(PACKAGE_NAME).spec
+	if [ -f $(fdtarball) ]; then \
+		tar rf $(PACKETNAME).tar --transform 's,^,$(PACKETNAME)/,' --add-file=$(fdtarball); \
+	fi
 	gzip $(PACKETNAME).tar
 
 dist: $(PACKETNAME).tar.gz

Makefile.conf.in

@@ -66,6 +66,8 @@ PLUGINSUBDIRS := @PLUGINSUBDIRS@
 ST_PLUGINSUBDIRS := @ST_PLUGINSUBDIRS@
 REQUIRED:=@REQUIRED@
 
+HAVE_LIBBFD := @HAVE_LIBBFD@
+
 OS=@CONFIG_HOST@
 RANLIB:=@RANLIB@
 
@@ -83,28 +85,14 @@ PACKAGE_VERSION_SPACES:=$(subst ., ,$(PACKAGE_VERSION))
 PACKAGE_VERSION_SPACES:=$(subst -, ,$(PACKAGE_VERSION_SPACES))
 PACKAGE_VERSION_SPACES:=$(subst pre, pre,$(PACKAGE_VERSION_SPACES))
 VERSION:=$(word 1, $(PACKAGE_VERSION_SPACES))
-SUBLEVEL_:=$(word 2, $(PACKAGE_VERSION_SPACES))
-SUBLEVEL:=$(subst pre,,$(SUBLEVEL_))
+SUBLEVEL:=$(word 2, $(PACKAGE_VERSION_SPACES))
 PATCHLEVEL1:=$(word 3, $(PACKAGE_VERSION_SPACES))
-PATCHLEVEL2:=$(word 4, $(PACKAGE_VERSION_SPACES))
-ifeq (3,$(words $(PACKAGE_VERSION_SPACES)))
-  PATCHLEVEL2=0
-endif
-ifeq (5,$(words $(PACKAGE_VERSION_SPACES)))
-  PATCHLEVEL2=0
-endif
-PATCHLEVEL:=$(PATCHLEVEL1).$(PATCHLEVEL2)
-ifeq "$(PATCHLEVEL2)" "0"
-  PACKETNAME:=$(PACKAGE_NAME)-$(VERSION).$(SUBLEVEL).$(PATCHLEVEL1)
-else
-  PACKETNAME:=$(PACKAGE_NAME)-$(VERSION).$(SUBLEVEL).$(PATCHLEVEL)
-endif
-PACKETNAME:=$(subst .pre,pre,$(PACKETNAME))
-THISVERSION_:=$(VERSION).$(SUBLEVEL_).$(PATCHLEVEL1)
-THISVERSION:=$(subst .pre,-pre,$(THISVERSION_))
-PACKVERSION:=$(subst .pre,pre,$(THISVERSION_))
+PACKETNAME:=$(PACKAGE_NAME)-$(VERSION).$(SUBLEVEL)$(PATCHLEVEL1)
+THISVERSION:=$(VERSION).$(SUBLEVEL)-$(PATCHLEVEL1)
+PACKVERSION:=$(VERSION).$(SUBLEVEL)$(PATCHLEVEL1)
 BINPATH:=$(top_builddir)/$(THISVERSION)
 RELEASE_DATE:=$(shell cd $(top_srcdir) && ./getversion -d)
+REVISION:=$(shell cd $(top_srcdir) && ./getversion -r)
 
 ifdef USE_DL_PLUGINS
 DL_CFLAGS:=-fPIC