Improve compatibility with new CMake macro

Signed-off-by: Igor Raits <ignatenkobrain@fedoraproject.org>

evolution.spec

@@ -248,9 +248,6 @@ cat data/org.gnome.Evolution.desktop.in.i | sed -e "s/Icon=evolution/Icon=org.gn
 
 %build
 
-mkdir -p _build
-cd _build
-
 # define all of our flags, this is kind of ugly :(
 %if %{ldap_support}
 %define ldap_flags -DWITH_OPENLDAP=ON
@@ -290,14 +287,12 @@ CFLAGS="$RPM_OPT_FLAGS -fPIC -DLDAP_DEPRECATED -Wno-sign-compare -Wno-deprecated
 	-DVERSION_SUBSTRING=" (%{version}-%{release})" \
 	%ldap_flags %ssl_flags %gtkdoc_flags %tests_flags %tnef_flags \
 	-DENABLE_PLUGINS=all \
-	..
+	%{nil}
 
-make %{?_smp_mflags}
+%cmake_build
 
 %if %{with_docs}
 
-cd ..
-
 # Replace identical images in the help by links.
 # This reduces the RPM size by several megabytes.
 helpdir=$RPM_BUILD_ROOT%{_datadir}/gnome/help/%{name}
@@ -319,9 +314,7 @@ done
 %endif
 
 %install
-rm -rf $RPM_BUILD_ROOT
-cd _build
-make DESTDIR=$RPM_BUILD_ROOT install
+%cmake_install
 
 %if 0%{?flatpak}
 %{S:1} <%{S:2} >flatpak-evolution-wrapper.sh
@@ -533,10 +526,10 @@ grep -v "%{_datadir}/locale" evolution.lang > help.lang
 
 %endif
 
-%files langpacks -f _build/translations.lang
+%files langpacks -f translations.lang
 
 %if %{with_docs}
-%files help -f _build/help.lang
+%files help -f help.lang
 %endif
 
 %files bogofilter