* Makefile.in: increment VERSION. Change tar file name for dist and

bindist targets to be more standard.
	* config.guess: Update with the currently published file.
	* config.sub: ditto.
	* configure.in: Use value of build_alias instead of testing for
	directory names to set BUILDENV.
	* configure: ditto.
	* lib/Makefile.in: Change the name of the targets install,
	install-headers and install-libraries to xinstall, xinstall-headers
	and xinstall-libraries for system target specified installation.
	Recreate targets install, install-headers and install-libraries for
	exec-prefix specified installation.  Ditto for the uninstall targets of
	the same name.

winsup/w32api/configure

@@ -1183,12 +1183,10 @@ fi
 
 echo $ac_n "checking for build environment""... $ac_c" 1>&6
 echo "configure:1186: checking for build environment" >&5
-BUILDENV=
-if test -d ../../winsup; then
-        BUILDENV=cygwin
-elif test -d ../mingw; then
-        BUILDENV=mingw
-fi
+case "$build_alias" in
+*-mingw*) BUILDENV=mingw;;
+*-cygwin*) BUILDENV=cygwin;;
+esac
 if test -z "$BUILDENV"; then
         echo "$ac_t""standard" 1>&6
 else