post-review fixes

some missing BR, scriptlets, -devel deps

dolphin.spec

@@ -17,6 +17,7 @@ BuildRequires:  cmake
 BuildRequires:  desktop-file-utils
 BuildRequires:  extra-cmake-modules
 BuildRequires:  qt5-qtbase-devel
+BuildRequires:  kf5-rpm-macros
 BuildRequires:  kf5-kdoctools-devel
 BuildRequires:  kf5-kinit-devel
 BuildRequires:  kf5-kcmutils-devel
@@ -59,8 +60,8 @@ Summary:        Dolphin runtime libraries
 Summary:        Developer files for %{name}
 Requires:       %{name}%{?_isa} = %{version}-%{release}
 Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
-Requires:       qt5-qtbase-devel
-Requires:       kf5-kio-devel
+Requires:       qt5-qtbase-devel%{?_isa}
+Requires:       kf5-kio-devel%{?_isa}
 %description    devel
 %{summary}.
 
@@ -86,6 +87,14 @@ appstream-util validate-relax --nonet %{buildroot}%{_kf5_datadir}/appdata/%{name
 desktop-file-validate %{buildroot}%{_kf5_datadir}/applications/org.kde.%{name}.desktop ||:
 
 
+%posttrans
+update-desktop-database -q &> /dev/null ||:
+
+%postun
+if [ $1 -eq 0 ] ; then
+update-desktop-database -q &> /dev/null ||:
+fi
+
 %files
 %license COPYING*
 %doc README