Update to ncurses 6.1 (patch 20180127)

OBS-URL: https://build.opensuse.org/package/show/Base:System/ncurses?expand=0&rev=350

ncurses.spec

@@ -48,15 +48,15 @@ Obsoletes:      ncurses-64bit
 # but also build the ABI version 5 as this is part of the source
 # tar ball including the latest upstream fixes for ABI 5.
 #
-Version:        6.0
+Version:        6.1
 Release:        0
 Summary:        Terminal control library
 #Git:           http://ncurses.scripts.mit.edu
 License:        MIT
 Group:          System/Base
 Url:            http://invisible-island.net/ncurses/ncurses.html
-Source0:        ftp://invisible-island.net/ncurses/ncurses-6.0.tar.gz
-Source1:        ncurses-6.0-patches.tar.bz2
+Source0:        ftp://invisible-island.net/ncurses/ncurses-6.1.tar.gz
+Source1:        ncurses-6.1-patches.tar.bz2
 Source2:        handle.linux
 Source3:        README.devel
 Source4:        ncurses-rpmlintrc
@@ -64,7 +64,7 @@ Source4:        ncurses-rpmlintrc
 Source5:        ftp://invisible-island.net/pub/ncurses/current/tack-1.08-20170818.tgz
 Source6:        edit.sed
 Source7:        baselibs.conf
-Patch0:         ncurses-6.0.dif
+Patch0:         ncurses-6.1.dif
 Patch1:         ncurses-5.9-ibm327x.dif
 Patch4:         ncurses-5.7-tack.dif
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
@@ -235,12 +235,11 @@ incoming data stream.
 
 %prep
 %setup -q
-rm -f  Ada95/src/terminal_interface-curses.adb
-rm -f  mkinstalldirs
 tar -xjf %{S:1}
 set +x
 for patch in patches/ncurses*.patch
 do
+    test -e "$patch" || continue
     patch -f -T -p1 -s < $patch
 done
 set -x
@@ -254,10 +253,6 @@ mv tack-* tack
 %patch1 -p0 -b .327x
 %patch4 -p0 -b .hs
 %patch0 -p0 -b .p0
-rm -vf include/ncurses_dll.h
-rm -vf mkdirs.sh
-rm -vf tar-copy.sh
-rm -vf mk-dlls.sh
 
 %build
 #