Fix bug #18955 with failure generating macuvs.h on MS-Windows.

 admin/unidata/Makefile.in (${top_srcdir}/src/macuvs.h): Use
 unmsys--file-name.

admin/ChangeLog

+2014-11-09  Eli Zaretskii  <eliz@gnu.org>
+
+	* unidata/Makefile.in (${top_srcdir}/src/macuvs.h): Use
+	unmsys--file-name.  (Bug#18955)
+
 2014-11-09  Glenn Morris  <rgm@gnu.org>
 
 	* admin.el (make-manuals-dist-output-variables)

admin/unidata/Makefile.in

@@ -37,7 +37,7 @@ all: ${top_srcdir}/src/macuvs.h ${DSTDIR}/charprop.el
 
 ${top_srcdir}/src/macuvs.h: ${srcdir}/uvs.el ${srcdir}/IVD_Sequences.txt
 	${EMACS} -batch -l "${srcdir}/uvs.el" \
-	  --eval '(uvs-print-table-ivd "${srcdir}/IVD_Sequences.txt" "Adobe-Japan1")' \
+	  --eval '(uvs-print-table-ivd (unmsys--file-name "${srcdir}/IVD_Sequences.txt") "Adobe-Japan1")' \
 	  > $@
 
 .el.elc: