add ghc_pkgdocdir for RHEL compatibility

no _pkgdocdir in current RHEL

ghc-rpm-macros.spec

@@ -112,6 +112,9 @@ install -p -D -m 0755 %{SOURCE5} %{buildroot}/%{_bindir}/cabal-tweak-flag
 
 
 %changelog
+* Fri Mar 20 2015 Jens Petersen <petersen@redhat.com>
+- introduce ghc_pkgdocdir since no _pkgdocdir in RHEL 7 and earlier
+
 * Sat Mar  7 2015 Jens Petersen <petersen@fedoraproject.org> - 1.4.12-1
 - allow overriding ghc- prefix with ghc_name (for ghc784 etc)
 

macros.ghc

@@ -24,7 +24,7 @@ fi
 %global _hardened_ldflags %{nil}\
 CFLAGS="${CFLAGS:-%optflags}"; export CFLAGS\
 LDFLAGS="${LDFLAGS:-%__global_ldflags}"; export LDFLAGS\
-%cabal configure --prefix=%{_prefix} --libdir=%{_libdir} --docdir=%{?_pkgdocdir}%{!?_pkgdocdir:%{_docdir}/%{name}-%{version}} --libsubdir='$compiler/$pkgid' --datasubdir='$pkgid' --ghc %{!?ghc_without_dynamic:--enable-executable-dynamic} %{?with_tests:--enable-tests} --ghc-options="$(echo ' '$CFLAGS | sed -e 's/ / -optc/g') $(echo ' '$LDFLAGS | sed -e 's/ / -optl/g')" %{?cabal_configure_options} $cabal_configure_extra_options
+%cabal configure --prefix=%{_prefix} --libdir=%{_libdir} --docdir=%{ghc_pkgdocdir} --libsubdir='$compiler/$pkgid' --datasubdir='$pkgid' --ghc %{!?ghc_without_dynamic:--enable-executable-dynamic} %{?with_tests:--enable-tests} --ghc-options="$(echo ' '$CFLAGS | sed -e 's/ / -optc/g') $(echo ' '$LDFLAGS | sed -e 's/ / -optl/g')" %{?cabal_configure_options} $cabal_configure_extra_options
 
 # install
 %cabal_install %cabal copy --destdir=%{buildroot} -v
@@ -35,6 +35,9 @@ tests
 %cabal test\
 %endif
 
+# no _pkgdocdir in EPEL <= 7
+%ghc_pkgdocdir %{?_pkgdocdir}%{!?_pkgdocdir:%{_docdir}/%{name}-%{version}}
+
 # root dir for ghc docs (used by ghc.spec)
 %ghc_html_dir %{_docdir}/ghc/html
 # deprecates