diff --git a/libstfl.changes b/libstfl.changes
index fcf71fb..5012f3f 100644
--- a/libstfl.changes
+++ b/libstfl.changes
@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed May 13 15:01:26 UTC 2015 - mpluskal@suse.com
+
+- Update to 0.23
+  * no upstream changelog provided
+- Cleanup spec file with spec-cleaner
+
 -------------------------------------------------------------------
 Fri Mar  2 13:27:51 UTC 2012 - cfarrell@suse.com
 
diff --git a/libstfl.spec b/libstfl.spec
index df62636..04b05fa 100644
--- a/libstfl.spec
+++ b/libstfl.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libstfl
 #
-# Copyright (c) 2012 SUSE LINUX Products GmbH, Nuernberg, Germany.
+# Copyright (c) 2015 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,31 +17,26 @@
 
 
 %define soname 0
-
 Name:           libstfl
-Version:        0.21
+Version:        0.23
 Release:        0
 Summary:        Structured Terminal Forms Library
 License:        LGPL-3.0+
 Group:          System/Libraries
+Url:            http://www.clifford.at/stfl/
 Source:         http://www.clifford.at/stfl/stfl-%{version}.tar.gz
 Source99:       libstfl-rpmlintrc
 Patch1:         stfl-optflags.patch
 Patch2:         stfl-ncurses.patch
-Url:            http://www.clifford.at/stfl/
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 #BuildRequires:	swig perl python python-devel ruby ruby-devel
-BuildRequires:  gcc
-BuildRequires:  glibc-devel
-BuildRequires:  make
 BuildRequires:  ncurses-devel
-BuildRequires:  pkgconfig
+BuildRequires:  pkg-config
+BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
 .............................................................................
 
 %package -n libstfl%{soname}
-
 Summary:        Structured Terminal Forms Library
 Group:          System/Libraries
 
@@ -57,11 +52,10 @@ an application programmer does not need to spend ages fiddling around with the
 GUI and can concentrate on the more interesting programming tasks.
 
 %package -n libstfl-devel
-
 Summary:        Structured Terminal Forms Library
 Group:          Development/Libraries/C and C++
-Requires:       ncurses-devel
 Requires:       libstfl%{soname} = %{version}
+Requires:       ncurses-devel
 
 %description -n libstfl-devel
 STFL is a library which implements a curses-based widget set for text
@@ -83,7 +77,7 @@ GUI and can concentrate on the more interesting programming tasks.
 make %{?_smp_mflags} \
     prefix="%{_prefix}" \
 	libdir="%{_lib}" \
-	CC="%__cc" \
+	CC="gcc" \
 	OPTFLAGS="%{optflags}" \
 	FOUND_SPL=0 \
 	FOUND_SWIG=0 \
@@ -92,7 +86,7 @@ make %{?_smp_mflags} \
 	FOUND_PYTHON=0
 
 %install
-%makeinstall \
+make DESTDIR=%{buildroot} install %{?_smp_mflags} \
 	prefix="%{_prefix}" \
 	libdir="%{_lib}" \
 	FOUND_SPL=0 \
@@ -103,7 +97,7 @@ make %{?_smp_mflags} \
 
 [ -e "%{buildroot}%{_libdir}/libstfl.so.%{soname}" ] || {
     pushd "%{buildroot}%{_libdir}/"
-    %__ln_s libstfl.so.*.* libstfl.so.%{soname}
+    ln -s libstfl.so.*.* libstfl.so.%{soname}
     popd
 }
 
diff --git a/stfl-0.21.tar.gz b/stfl-0.21.tar.gz
deleted file mode 100644
index 2c6480a..0000000
--- a/stfl-0.21.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:bf0ead0a66b635602222bc9089414b99f99081b956c92baf77699d283bcc88eb
-size 41093
diff --git a/stfl-0.23.tar.gz b/stfl-0.23.tar.gz
new file mode 100644
index 0000000..08f10bc
--- /dev/null
+++ b/stfl-0.23.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e75ed8427905ad50faf43ed5fefd0cf7b16ee0c1ca87e15d33e360bb92aedfde
+size 43941
diff --git a/stfl-optflags.patch b/stfl-optflags.patch
index f7b9a1b..d24e3d8 100644
--- a/stfl-optflags.patch
+++ b/stfl-optflags.patch
@@ -1,5 +1,7 @@
---- Makefile.orig	2010-06-25 00:59:31.000000000 +0200
-+++ Makefile	2010-06-25 01:01:34.000000000 +0200
+Index: Makefile
+===================================================================
+--- Makefile.orig
++++ Makefile
 @@ -20,9 +20,10 @@
  
  include Makefile.cfg
@@ -13,4 +15,4 @@
 +export LDLIBS += -pthread -lncursesw
  
  SONAME  := libstfl.so.0
- VERSION := 0.21
+ VERSION := 0.23