Add riscv64 to ghc_unregisterized_arches

Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>

ghc.spec

@@ -41,7 +41,7 @@
 %global llvm_major 7.0
 %global ghc_llvm_archs armv7hl aarch64
 
-%global ghc_unregisterized_arches s390 s390x %{mips}
+%global ghc_unregisterized_arches s390 s390x %{mips} riscv64
 
 Name: ghc
 Version: 8.8.4
@@ -49,7 +49,7 @@ Version: 8.8.4
 # - release can only be reset if *all* library versions get bumped simultaneously
 #   (sometimes after a major release)
 # - minor release numbers for a branch should be incremented monotonically
-Release: 108%{?dist}
+Release: 107.0.riscv64%{?dist}
 Summary: Glasgow Haskell Compiler
 
 License: BSD and HaskellReport
@@ -125,7 +125,11 @@ BuildRequires: python3
 BuildRequires: python3-sphinx
 %endif
 %ifarch %{ghc_llvm_archs}
+%if 0%{?fedora} > 29
 BuildRequires: llvm%{llvm_major}
+%else
+BuildRequires: llvm >= %{llvm_major}
+%endif
 %endif
 %if %{with dwarf}
 BuildRequires: elfutils-devel
@@ -185,7 +189,11 @@ Requires: ghc-base-devel%{?_isa} = %{base_ver}-%{release}
 Obsoletes: ghc-doc-index < %{version}-%{release}
 %endif
 %ifarch %{ghc_llvm_archs}
+%if 0%{?fedora} >= 29
 Requires: llvm%{llvm_major}
+%else
+Requires: llvm >= %{llvm_major}
+%endif
 %endif
 
 %description compiler
@@ -383,7 +391,12 @@ EOF
 autoreconf
 %endif
 
+%if 0%{?fedora} > 28
 %ghc_set_gcc_flags
+%else
+export CFLAGS="${CFLAGS:-%optflags}"
+export LDFLAGS="${LDFLAGS:-%{?__global_ldflags}}"
+%endif
 # for ghc >= 8.2
 export CC=%{_bindir}/gcc
 
@@ -657,8 +670,8 @@ env -C %{ghc_html_libraries_dir} ./gen_contents_index
 
 
 %changelog
-* Tue Aug 18 2020 Troy Dawson <tdawson@redhat.com> - 8.8.4-108
+* Wed Dec  2 2020 David Abdurachmanov <david.abdurachmanov@sifive.com> - 8.8.4-107.0.riscv64
-- Cleanup old %if statements
+- Add riscv64 to ghc_unregisterized_arches
 
 * Mon Jul 27 2020 Fedora Release Engineering <releng@fedoraproject.org> - 8.8.4-107
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild