Use python3-embed as dependency where available. Fixes FTBFS with python

3.8 (#1718290)

0001-Use-python3-embed-as-dependency-on-Python-3.8.patch

@@ -0,0 +1,39 @@
+From 1329f3ed35e2f7c2d20b92b4df9a2f24123c7575 Mon Sep 17 00:00:00 2001
+From: Peter Hutterer <peter.hutterer@who-t.net>
+Date: Wed, 17 Jul 2019 12:46:58 +1000
+Subject: [PATCH libratbag] Use python3-embed as dependency on Python 3.8
+
+Python 3.8 no longer links to libpython, resulting in undefined references to
+Python API.
+
+But it provides a python3-embed.pc now, so let's try using that first and only
+fall back on the normal case if that fails.
+
+See https://github.com/mesonbuild/meson/issues/5629
+---
+ meson.build | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/meson.build b/meson.build
+index 468bdfa3..34804919 100644
+--- a/meson.build
++++ b/meson.build
+@@ -549,8 +549,14 @@ swig_gen = generator(
+                 '@INPUT@'],
+ )
+ 
++# From python 3.8 we neeed python3-embed
++dep_python3 = dependency('python3-embed', required: false)
++if not dep_python3.found()
++	dep_python3 = dependency('python3')
++endif
++
+ wrapper_deps = [
+-    dependency('python3'),
++    dep_python3,
+     dep_libratbag,
+     dep_libshared,
+ ]
+-- 
+2.21.0
+

libratbag.spec

@@ -2,12 +2,14 @@
 
 Name:           libratbag
 Version:        0.9.905
-Release:        2%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
+Release:        3%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
 Summary:        Programmable input device library
 License:        MIT
 URL:            https://github.com/libratbag/libratbag
 Source0:        https://github.com/libratbag/%{name}/archive/v%{version}/%{name}-%{version}.tar.gz
 
+Patch01:        0001-Use-python3-embed-as-dependency-on-Python-3.8.patch
+
 BuildRequires:  git gcc gcc-c++
 BuildRequires:  meson pkgconfig
 BuildRequires:  libevdev-devel
@@ -96,6 +98,10 @@ developing applications that use liblur.
 %{_libdir}/pkgconfig/liblur.pc
 
 %changelog
+* Wed Jul 17 2019 Peter Hutterer <peter.hutterer@redhat.com> 0.9.905-3
+- Use python3-embed as dependency where available. Fixes FTBFS with python
+  3.8 (#1718290)
+
 * Thu Feb 28 2019 Peter Hutterer <peter.hutterer@redhat.com> 0.9.905-2
 - Fix meson options