--- xz.changes.orig
+++ xz.changes
@@ -1,4 +1,11 @@
 -------------------------------------------------------------------
+Sun Nov 24 16:25:53 UTC 2013 - andreas.stieger@gmx.de
+
+- verify source signature
+- add optional -static library package, intended to publish pixz for
+  CentOS / RHEL, default off
+
+-------------------------------------------------------------------
 Tue Jul 16 13:52:16 UTC 2013 - idonmez@suse.com
 
 - Update to version 5.0.5
@@ -55,6 +62,11 @@ Fri Jul  6 10:18:06 UTC 2012 - sweet_f_a
 - correct license "LGPL-2.1+ and GPL-2.0+" (bnc#770195)
 
 -------------------------------------------------------------------
+Mon May  7 08:30:57 UTC 2012 - werner@suse.de
+
+- Enforce usage of reentrant versions of libc functions 
+
+-------------------------------------------------------------------
 Sun Feb 12 23:37:44 UTC 2012 - crrodriguez@opensuse.org
 
 - Put libraries back in %{_libdir}, /usr merge project. 
--- xz.spec.orig
+++ xz.spec
@@ -16,15 +16,25 @@
 #
 
 
+%if 0%{?centos_version} || 0%{?rhel_version}
+%if 0%{?centos_version} <= 600 || 0%{?rhel_version <= 600}
+%bcond_without	static_libs
+%endif
+%else
+%bcond_with	static_libs
+%endif
+
 Name:           xz
 Summary:        A Program for Compressing Files
 License:        LGPL-2.1+ and GPL-2.0+
 Group:          Productivity/Archiving/Compression
 Version:        5.0.5
 Release:        0
-Url:            http://tukaani.org/lzma/
-Source:         http://tukaani.org/xz/%{name}-%{version}.tar.xz
+Url:            http://tukaani.org/xz/
+Source:         http://tukaani.org/xz/%{name}-%{version}.tar.bz2
 Source2:        baselibs.conf
+Source3:        http://tukaani.org/xz/%{name}-%{version}.tar.bz2.sig
+Source4:        http://tukaani.org/misc/lasse_collin_pubkey.txt#/xz.keyring
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 BuildRequires:  pkgconfig
 Provides:       lzma = %version
@@ -83,22 +93,43 @@ Obsoletes:      lzma-alpha-devel < %vers
 This package contains the header files and libraries needed for
 compiling programs using the LZMA library.
 
+%if %{with static_libs}
+%package static
+Summary:        Static version of LZMA library
+Group:          Development/Libraries/C and C++
+Requires:       lzma-devel = %version
+
+%description static
+Static library for the LZMA library 
+%endif
+
 %prep
 %setup -q
 
 %build
+%global optflags    %{optflags} -D_REENTRANT -pipe
 %if %{do_profiling}
 profiledir=$(mktemp -d)
 trap "rm -rf $profiledir" EXIT
 export CFLAGS="%optflags %{cflags_profile_generate}=$profiledir"
 %endif
-%configure --disable-static --with-pic --docdir=%_docdir/%name
+%configure \
+%if ! %{with static_libs}
+	--disable-static \
+%endif
+	--with-pic \
+	--docdir=%_docdir/%name
 make %{?_smp_mflags}
 %if %{do_profiling}
 time make check
 make clean
 export CFLAGS="%optflags %{cflags_profile_feedback}=$profiledir"
-%configure --disable-static --with-pic --docdir=%_docdir/%name
+%configure \
+%if ! %{with static_libs}
+	--disable-static \
+%endif
+	--with-pic \
+	--docdir=%_docdir/%name
 make %{?_smp_mflags}
 %endif
 
@@ -139,4 +170,10 @@ make install DESTDIR=$RPM_BUILD_ROOT
 %{_libdir}/lib*.so
 %{_libdir}/pkgconfig/*.pc
 
+%if %{with static_libs}
+%files static
+%defattr(-, root, root)
+%{_libdir}/*.a
+%endif
+
 %changelog