Build the python3 bindings and add a subpackage for them.

- Remove the CMakeLists patch file in favor of built-in CMake python
  library search configuration, which also allows building for both
  python3 and python2.
- Add missing requires to -devel on the python bindings to ensure the
  included examples can be ran.
- Do not include byte-compiled files for python scripts.

libftdi-python-version.patch

@@ -1,13 +0,0 @@
---- python/CMakeLists.txt~	2016-05-20 01:53:12.000000000 -0500
-+++ python/CMakeLists.txt	2016-06-14 14:07:30.001554507 -0500
-@@ -12,8 +12,8 @@
-       set ( SWIG_FOUND TRUE )
-     endif ()
-   endif ()
--  find_package ( PythonLibs )
--  find_package ( PythonInterp )
-+  find_package ( PythonLibs 2.7 REQUIRED )
-+  find_package ( PythonInterp 2.7 REQUIRED )
- endif ()
- 
- if ( SWIG_FOUND AND PYTHONLIBS_FOUND AND PYTHONINTERP_FOUND )

libftdi.spec

@@ -1,13 +1,12 @@
 Name:		libftdi
 Version:	1.3
-Release:	9%{?dist}
+Release:	10%{?dist}
 Summary:	Library to program and control the FTDI USB controller
 
 Group:		System Environment/Libraries
 License:	LGPLv2
 URL:		http://www.intra2net.com/de/produkte/opensource/ftdi/
 Source0:	http://www.intra2net.com/en/developer/%{name}/download/%{name}1-%{version}.tar.bz2
-Patch0:		libftdi-python-version.patch
 
 BuildRequires:	boost-devel
 BuildRequires:	cmake
@@ -15,7 +14,9 @@ BuildRequires:	doxygen
 BuildRequires:	libconfuse-devel
 BuildRequires:	libusbx-devel
 BuildRequires:	python2-devel
+BuildRequires:	python3-devel
 BuildRequires:	swig
+BuildRequires:	gcc-c++
 Requires:	systemd
 
 
@@ -27,6 +28,7 @@ FT232BM and FT245BM type chips including the popular bitbang mode.
 Summary:	Header files and static libraries for libftdi
 Group:		Development/Libraries
 Requires:	%{name}%{?_isa} = %{version}-%{release}
+Requires:	python3-%{name}%{?_isa} = %{version}-%{release}
 Requires:	pkgconfig
 
 %description devel
@@ -45,6 +47,15 @@ Requires:	%{name}%{?_isa} = %{version}-%{release}
 %description -n python2-libftdi
 Libftdi Python Language bindings.
 
+%package -n python3-libftdi
+%{?python_provide:%python_provide python3-libftdi}
+Summary:	Libftdi library Python 3 binding
+Group:		Development/Libraries
+Requires:	%{name}%{?_isa} = %{version}-%{release}
+
+%description -n python3-libftdi
+Libftdi Python 3 Language bindings.
+
 %package c++
 Summary:	Libftdi library C++ binding
 Group:		Development/Libraries
@@ -67,21 +78,37 @@ for building C++ applications with libftdi.
 %prep
 %setup -q -n %{name}1-%{version}
 
-%patch0 -p0
-
 #kernel does not provide usb_device anymore
 sed -i -e 's/usb_device/usb/g' packages/99-libftdi.rules
 sed -i -e 's/GROUP="plugdev"/TAG+="uaccess"/g' packages/99-libftdi.rules
 
 %build
 export CMAKE_PREFIX_PATH=/usr
-%{cmake} .
 
+mkdir build-py2
+pushd build-py2
+%{cmake} -DPython_ADDITIONAL_VERSIONS=%{python2_version} ..
 make %{?_smp_mflags}
+popd
 
+mkdir build-py3
+pushd build-py3
+%{cmake} -DPython_ADDITIONAL_VERSIONS=%{python3_version} ..
+make %{?_smp_mflags}
+popd
+
+# Fix python sheband lines
+find python/examples -type f -exec sed -i '1s=^#!/usr/bin/\(python\|env python\)[23]\?=#!%{__python3}=' {} +
 
 %install
+# Install python2, since we'll prefer python3 with the second install.
+pushd build-py2
 make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
+popd
+
+pushd build-py3
+make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
+popd
 
 mkdir -p $RPM_BUILD_ROOT/lib/udev/rules.d/
 install -p -m 644 packages/99-libftdi.rules $RPM_BUILD_ROOT/lib/udev/rules.d/69-libftdi.rules
@@ -91,7 +118,7 @@ find $RPM_BUILD_ROOT -type f -name "*.a" -delete
 
 #no man install
 mkdir -p $RPM_BUILD_ROOT%{_mandir}/man3
-install -p -m 644 doc/man/man3/*.3 $RPM_BUILD_ROOT%{_mandir}/man3
+install -p -m 644 build-py3/doc/man/man3/*.3 $RPM_BUILD_ROOT%{_mandir}/man3
 
 # Cleanup examples
 rm -f $RPM_BUILD_ROOT/%{_bindir}/simple
@@ -120,7 +147,7 @@ rm -rf $RPM_BUILD_ROOT/%{_datadir}/doc/libftdi1/example.conf
 /lib/udev/rules.d/69-libftdi.rules
 
 %files devel
-%doc doc/html
+%doc build-py3/doc/html
 %doc %{_datadir}/libftdi/examples
 %{_bindir}/ftdi_eeprom
 %{_bindir}/libftdi1-config
@@ -128,10 +155,16 @@ rm -rf $RPM_BUILD_ROOT/%{_datadir}/doc/libftdi1/example.conf
 %{_includedir}/libftdi1
 %{_libdir}/pkgconfig/libftdi1.pc
 %{_mandir}/man3/*
+# Don't include byte-compiled files for python scripts.
+%exclude %{_datadir}/libftdi/examples/*.pyc
+%exclude %{_datadir}/libftdi/examples/*.pyo
 
 %files -n python2-libftdi
 %{python2_sitearch}/*
 
+%files -n python3-libftdi
+%{python3_sitearch}/*
+
 %files c++
 %{_libdir}/libftdipp1.so.2*
 
@@ -147,6 +180,11 @@ rm -rf $RPM_BUILD_ROOT/%{_datadir}/doc/libftdi1/example.conf
 %postun c++ -p /sbin/ldconfig
 
 %changelog
+* Mon Oct 09 2017 Troy Curtis, Jr <troycurtisjr@gmail.com> - 1.3-10
+- Add python3 subpackage.
+- Drop patch0 in favor of built-in cmake config methods.
+- Don't include bytecompiled files for the example python scripts.
+
 * Sun Aug 20 2017 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 1.3-9
 - Add Provides for the old name without %%_isa