Use something that actually works with el8's cmake-3.11

Need to come up with something better that works for both
fedora/epel, or just continue to conditionalize things

kf5.spec

@@ -1,6 +1,6 @@
 Name:    kf5
 Version: 5.68.0
-Release: 2%{?dist}
+Release: 3%{?dist}
 Summary: Filesystem and RPM macros for KDE Frameworks 5
 License: BSD
 URL:     http://www.kde.org
@@ -80,6 +80,9 @@ sed -i \
 
 
 %changelog
+* Wed Aug 26 2020 Rex Dieter <rdieter@fedoraproject.org> - 5.68.0-3
+- Use something that actually works with el8's cmake-3.11
+
 * Tue Aug 25 2020 Rex Dieter <rdieter@fedoraproject.org> - 5.68.0-2
 - (branch) backport recent cmake changes from fedora
 

macros.kf5

@@ -23,9 +23,7 @@
   CXXFLAGS="${CXXFLAGS:-%optflags}" ; export CXXFLAGS ; \
   FFLAGS="${FFLAGS:-%optflags%{?_fmoddir: -I%_fmoddir}}" ; export FFLAGS ; \
   %{?__global_ldflags:LDFLAGS="${LDFLAGS:-%__global_ldflags}" ; export LDFLAGS ;} \
-    %{__cmake} \\\
-    %{?__cmake_builddir:-S "%{_vpath_srcdir}"} \\\
-    %{?__cmake_builddir:-B "%{__cmake_builddir}"} \\\
+    %{!?__cmake_in_source_build:%__cmake_configure}%{?__cmake_in_source_build:%__cmake} \\\
     -DCMAKE_C_FLAGS_RELEASE:STRING="-DNDEBUG" \\\
     -DCMAKE_CXX_FLAGS_RELEASE:STRING="-DNDEBUG" \\\
     -DCMAKE_Fortran_FLAGS_RELEASE:STRING="-DNDEBUG" \\\