diff --git a/.gitignore b/.gitignore
index fd88eda..6d178d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@
 /libbytesize-0.6.tar.gz
 /libbytesize-0.7.tar.gz
 /libbytesize-0.8.tar.gz
+/libbytesize-0.9.tar.gz
diff --git a/libbytesize.spec b/libbytesize.spec
index 37d3519..a8a60b0 100644
--- a/libbytesize.spec
+++ b/libbytesize.spec
@@ -1,20 +1,34 @@
+%define realname bytesize
+%define with_python3 1
+%define with_gtk_doc 1
+
+%define is_rhel 0%{?rhel} != 0
+
+# python3 is not available on RHEL
+%if %{is_rhel}
+%define with_python3 0
+%define configure_opts --without-python3
+%endif
+
 Name:        libbytesize
-Version:     0.8
-Release:     2%{?dist}
+Version:     0.9
+Release:     1%{?dist}
 Summary:     A library for working with sizes in bytes
 License:     LGPLv2+
 URL:         https://github.com/rhinstaller/libbytesize
 Source0:     https://github.com/rhinstaller/libbytesize/archive/%{name}-%{version}.tar.gz
 
-%define realname bytesize
-
 BuildRequires: gmp-devel
 BuildRequires: mpfr-devel
 BuildRequires: pcre-devel
 BuildRequires: gettext-devel
 BuildRequires: python-devel
+%if %{with_python3}
 BuildRequires: python3-devel
+%endif
+%if %{with_gtk_doc}
 BuildRequires: gtk-doc
+%endif
 
 %description
 The libbytesize is a C library that facilitates work with sizes in
@@ -40,6 +54,7 @@ Requires: python-six
 This package contains Python 2 bindings for libbytesize making the use of
 the library from Python 2 easier and more convenient.
 
+%if %{with_python3}
 %package -n python3-%{realname}
 Summary: Python 3 bindings for libbytesize
 Requires: %{name}%{?_isa} = %{version}-%{release}
@@ -48,12 +63,13 @@ Requires: python3-six
 %description -n python3-%{realname}
 This package contains Python 3 bindings for libbytesize making the use of
 the library from Python 3 easier and more convenient.
+%endif
 
 %prep
 %setup -q -n %{name}-%{version}
 
 %build
-%configure
+%configure %{?configure_opts}
 %{__make} %{?_smp_mflags}
 
 %install
@@ -77,18 +93,33 @@ find %{buildroot} -type f -name "*.la" | xargs %{__rm}
 %dir %{_includedir}/bytesize
 %{_includedir}/bytesize/bs_size.h
 %{_libdir}/pkgconfig/bytesize.pc
+%if %{with_gtk_doc}
 %{_datadir}/gtk-doc/html/libbytesize
+%endif
 
 %files -n python-%{realname}
 %dir %{python2_sitearch}/bytesize
 %{python2_sitearch}/bytesize/*
 
+%if %{with_python3}
 %files -n python3-%{realname}
 %dir %{python3_sitearch}/bytesize
 %{python3_sitearch}/bytesize/*
 %{python3_sitearch}/bytesize/__pycache__/*
+%endif
 
 %changelog
+* Wed Jan 11 2017 Vratislav Podzimek <vpodzime@redhat.com> - 0.9-1
+- Allow the Size python class to be easily imported (vpodzime)
+- Make sure pyexecdir is defined (vpodzime)
+- Do not run Python 3 tests without python3 (vpodzime)
+- Disable python3 on RHEL (vpodzime)
+- Reflect the configuration in the spec file template (vpodzime)
+- Make documentation generation conditional (vpodzime)
+- Make python3 support conditional (vpodzime)
+- Require lower version of libpcre (vpodzime)
+- Sync the spec file with downstream (vpodzime)
+
 * Wed Dec 21 2016 Adam Williamson <awilliam@redhat.com> - 0.8-2
 - Rebuild for Python 3.6, again
 
diff --git a/sources b/sources
index 31a2939..5775427 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (libbytesize-0.8.tar.gz) = 93d4d7105f512073462c2ff0d01e975aca70e577c7f644bdc87841959513bc83c207590be6baf7dbf3e049c08ff9aaddc99c71bb94f665e79a60415f1a65dcd7
+SHA512 (libbytesize-0.9.tar.gz) = af8542af90db58624a90b2e1fa2a2474fd2fdca4988f4e3fbe497df93fea7fe34d43c1f8114d27ce154df001aacaf8680c99f7ba3c2fca734bcb44d03601485e