Index: ghc-rpm-macros-1.3.91/macros.ghc
===================================================================
--- ghc-rpm-macros-1.3.91.orig/macros.ghc
+++ ghc-rpm-macros-1.3.91/macros.ghc
@@ -18,6 +18,9 @@ proceeding, to avoid dependency ABI brea
 %endif\
 fi
 
+# no _pkgdocdir in openSUSE
+%_pkgdocdir %{_docdir}/%{name}
+
 # configure
 %cabal_configure\
 %ghc_check_bootstrap\
@@ -29,7 +32,7 @@ LDFLAGS="${LDFLAGS:-%__global_ldflags}";
 %cabal_install %cabal copy --destdir=%{buildroot} -v
 
 # root dir for ghc docs
-%ghcdocbasedir %{_docdir}/ghc/html
+%ghcdocbasedir %{_datadir}/doc/ghc/html
 # libraries doc dir
 %ghclibdocdir %{ghcdocbasedir}/libraries
 # pkg doc dir