touch %{basepkg}.files so that %files -f works for meta packages

ghc-rpm-macros.spec

@@ -101,7 +101,9 @@ EOF
 * Sat Jan 31 2015 Jens Petersen <petersen@redhat.com> - 1.4.6-1
 - disable Cabal tests on armv7 since they give an internal error
   https://ghc.haskell.org/trac/ghc/ticket/10029
+- fix building of meta packages:
 - only run cabal haddock for real libraries with modules
+- make sure basepkg.files is also created for meta packages
 
 * Sat Jan 31 2015 Jens Petersen <petersen@redhat.com> - 1.4.5-1
 - fix the R*PATH regexp

macros.ghc

@@ -55,6 +55,7 @@ LDFLAGS="${LDFLAGS:-%__global_ldflags}"; export LDFLAGS\
 %define pkgdir %{ghclibdir}/%{pkgnamever}\
 %define docdir %{ghclibdocdir}/%{pkgnamever}\
 rm -f %{basepkg}.files %{basepkg}-devel.files\
+touch %{basepkg}.files %{basepkg}-devel.files\
 if [ -d "%{buildroot}%{pkgdir}" ]; then\
 echo "%dir %{pkgdir}" >> %{basepkg}.files\
 %if %{undefined ghc_without_shared}\