Don't build with scim in RHEL8 (#1762523)

Don't build with synaptics in RHEL8 (#1762551)
Don't build with appstream in RHEL8 (#1775839)

plasma-desktop.spec

@@ -1,6 +1,13 @@
 
 %global kf5_version_min 5.42
 
+%global synaptics 1
+%global scim 1
+%if 0%{?rhel} && 0%{?rhel} > 7
+%global synaptics 0
+%global scim 0
+%endif
+
 Name:    plasma-desktop
 Summary: Plasma Desktop shell
 Version: 5.18.2
@@ -50,7 +57,9 @@ BuildRequires:  qt5-qtdeclarative-devel
 BuildRequires:  phonon-qt5-devel
 
 BuildRequires:  ibus-devel
+%if 0%{?scim}
 BuildRequires:  scim-devel
+%endif
 
 BuildRequires:  kf5-rpm-macros >= %{kf5_version_min}
 BuildRequires:  extra-cmake-modules
@@ -83,7 +92,9 @@ BuildRequires:  plasma-breeze >= %{majmin_ver}
 BuildRequires:  plasma-workspace-devel >= %{majmin_ver}
 
 # Optional
+%if 0%{?rhel} && 0%{?rhel} > 7
 BuildRequires:  cmake(AppStreamQt)
+%endif
 BuildRequires:  kf5-kactivities-devel >= %{kf5_version_min}
 BuildRequires:  kf5-kactivities-stats-devel >= %{kf5_version_min}
 BuildRequires:  libcanberra-devel
@@ -109,8 +120,10 @@ Requires:       iso-codes
 # for kcm_input, kcm_touchpad
 BuildRequires:  pkgconfig(xorg-evdev)
 BuildRequires:  pkgconfig(xorg-libinput)
+%if 0%{?synaptics}
 BuildRequires:  pkgconfig(xorg-synaptics)
 %endif
+%endif
 
 # Desktop
 Requires:       plasma-workspace >= %{majmin_ver}
@@ -260,6 +273,7 @@ desktop-file-validate %{buildroot}/%{_datadir}/applications/org.kde.{kfontview,k
 %{_kf5_qmldir}/org/kde/activities/settings/
 %{_kf5_datadir}/plasma/*
 %ifnarch s390 s390x
+%if 0%{?synaptics}
 # touchpad
 %{_kf5_datadir}/kservices5/kded/touchpad.desktop
 %{_bindir}/kcm-touchpad-list-devices
@@ -267,6 +281,7 @@ desktop-file-validate %{buildroot}/%{_datadir}/applications/org.kde.{kfontview,k
 %{_datadir}/config.kcfg/touchpad.kcfg
 %{_datadir}/config.kcfg/touchpaddaemon.kcfg
 %{_datadir}/dbus-1/interfaces/org.kde.touchpad.xml
+%endif
 # kcminput
 %{_kf5_bindir}/kapplymousetheme
 %{_kf5_datadir}/kcmmouse/
@@ -316,8 +331,10 @@ desktop-file-validate %{buildroot}/%{_datadir}/applications/org.kde.{kfontview,k
 %{_datadir}/polkit-1/actions/org.kde.fontinst.policy
 %{_datadir}/polkit-1/actions/org.kde.kcontrol.kcmclock.policy
 
+%if 0%{?scim}
 %files kimpanel-scim
 %{_libexecdir}/kimpanel-scim-panel
+%endif
 
 %files doc -f %{name}-doc.lang