insert a Setup.hs file if none shipped in package

current foundation and rio have no Setup.hs

Setup.hs

@@ -0,0 +1,3 @@
+import Distribution.Simple
+
+main = defaultMain

ghc-rpm-macros.spec

@@ -10,7 +10,7 @@
 #%%global without_hscolour 1
 
 Name:           ghc-rpm-macros
-Version:        1.9.1
+Version:        1.9.2
 Release:        1%{?dist}
 Summary:        RPM macros for building Haskell packages for GHC
 
@@ -27,6 +27,7 @@ Source6:        macros.ghc-extra
 Source7:        ghc.attr
 Source8:        ghc-pkg-wrapper
 Source9:        macros.ghc-os
+Source10:       Setup.hs
 Source11:       cabal-tweak-drop-dep
 Requires:       redhat-rpm-config
 # for ghc_version
@@ -128,6 +129,8 @@ install -p -D -m 0755 %{SOURCE3} %{buildroot}/%{_prefix}/lib/rpm/ghc-deps.sh
 install -p -D -m 0644 %{SOURCE7} %{buildroot}/%{_prefix}/lib/rpm/fileattrs/ghc.attr
 %endif
 
+install -p -D -m 0644 %{SOURCE10} %{buildroot}/%{_datadir}/%{name}/Setup.hs
+
 install -p -D -m 0755 %{SOURCE4} %{buildroot}/%{_bindir}/cabal-tweak-dep-ver
 install -p -D -m 0755 %{SOURCE5} %{buildroot}/%{_bindir}/cabal-tweak-flag
 install -p -D -m 0755 %{SOURCE11} %{buildroot}/%{_bindir}/cabal-tweak-drop-dep
@@ -154,6 +157,7 @@ EOF
 %{_bindir}/cabal-tweak-dep-ver
 %{_bindir}/cabal-tweak-drop-dep
 %{_bindir}/cabal-tweak-flag
+%{_datadir}/%{name}/Setup.hs
 
 
 %files extra
@@ -166,6 +170,9 @@ EOF
 
 
 %changelog
+* Tue Jul 31 2018 Jens Petersen <petersen@redhat.com> - 1.9.2-1
+- inject a Setup.hs if none shipped
+
 * Tue Jul 24 2018 Jens Petersen <petersen@redhat.com> - 1.9.1-1
 - remove -Wall and -Werror=format-security separately (on aarch64 and s390x)
 

macros.ghc

@@ -24,6 +24,9 @@ export CFLAGS\
 %ghc_set_cflags\
 %global _hardened_ldflags %{nil}\
 LDFLAGS="${LDFLAGS:-%{?__global_ldflags}}"; export LDFLAGS\
+if ! [ -f Setup.hs -o -f Setup.lhs ]; then\
+cp %{_datadir}/ghc-rpm-macros/Setup.hs .\
+fi\
 %cabal --version\
 %cabal configure --prefix=%{_prefix} --libdir=%{_libdir} --docdir=%{_ghcdocdir} --libsubdir='$compiler/$pkgid' --datasubdir='$pkgid' --libexecsubdir='$pkgid' --ghc %{?_ghcdynlibdir:--dynlibdir=%{_ghcdynlibdir}} %{!?ghc_without_dynamic:--enable-executable-dynamic} %{?with_tests:--enable-tests} %{?ghc_subpackaging:--user}%{!?ghc_subpackaging:--global} --ghc-options="${CFLAGS:+$(echo ' '$CFLAGS | sed -e 's/ / -optc/g')} ${LDFLAGS:+$(echo ' '$LDFLAGS | sed -e 's/ / -optl/g')}" %{?cabal_configure_options} $cabal_configure_extra_options