1706233 - hplip FTBFS with python38

hplip.spec

@@ -7,7 +7,7 @@
 Summary: HP Linux Imaging and Printing Project
 Name: hplip
 Version: 3.18.12
-Release: 10%{?dist}
+Release: 11%{?dist}
 License: GPLv2+ and MIT and BSD and IJG and Public Domain and GPLv2+ with exceptions and ISC
 
 Url: https://developers.hp.com/hp-linux-imaging-and-printing
@@ -147,8 +147,9 @@ BuildRequires: openssl-devel
 BuildRequires: sane-backends-devel
 BuildRequires: pkgconfig(dbus-1)
 
-# Make sure we get postscriptdriver tags.
-BuildRequires: python3-cups, cups
+# Make sure we get postscriptdriver tags - need cups and python3-cups.
+BuildRequires: cups
+BuildRequires: python3-cups
 
 # macros: %%{_tmpfilesdir}, %%{_udevrulesdir}
 BuildRequires: systemd
@@ -385,6 +386,12 @@ sed -i 's|^AM_INIT_AUTOMAKE|AM_INIT_AUTOMAKE([foreign])|g' configure.in
 # Regenerating all autotools files works-around these rpath issues.
 autoreconf --verbose --force --install
 
+# hplip used improper way of checking python usability which worked
+# until python38 - start to include python in spec file
+# https://bugzilla.redhat.com/show_bug.cgi?id=1706233
+export CFLAGS="%{optflags} $(python3-config --includes)"
+export CXXFLAGS="%{optflags} $(python3-config --includes)"
+
 %configure \
         --enable-scan-build --enable-gui-build --enable-fax-build \
         --disable-foomatic-rip-hplip-install --enable-pp-build \
@@ -657,6 +664,9 @@ rm -f %{buildroot}%{_sysconfdir}/xdg/autostart/hplip-systray.desktop
 %config(noreplace) %{_sysconfdir}/sane.d/dll.d/hpaio
 
 %changelog
+* Thu May 16 2019 Zdenek Dohnal <zdohnal@redhat.com> - 3.18.12-11
+- 1706233 - hplip FTBFS with python38
+
 * Mon Apr 15 2019 Zdenek Dohnal <zdohnal@redhat.com> - 3.18.12-10
 - fix several desktop issues reported in bodhi