enable armv7hl with -O0 (#1806116)

hlint.spec

@@ -11,7 +11,7 @@
 Name:           %{pkg_name}
 Version:        3.1.6
 # can only be reset when all subpkgs bumped
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Haskell source code suggestions
 
 License:        BSD
@@ -64,9 +64,10 @@ BuildRequires:  ghc-unix-prof
 # for ghc-lib-parser
 BuildRequires:  alex
 BuildRequires:  happy
+# may require ghc-8.10 to build
 # https://github.com/digital-asset/ghc-lib/issues/184 (s390x)
-# ghc-lib crashes on armv7hl
-ExcludeArch:    armv7hl s390x
+# https://bugzilla.redhat.com/show_bug.cgi?id=1806109
+ExcludeArch:    s390x
 
 %description
 HLint gives suggestions on how to improve your source code.
@@ -139,6 +140,10 @@ This package provides the Haskell %{name} profiling library.
 
 
 %build
+%ifarch armv7hl
+# https://bugzilla.redhat.com/show_bug.cgi?id=1806116
+%define cabal_configure_options --ghc-options="-O0"
+%endif
 # Begin cabal-rpm build:
 %ghc_libs_build %{subpkgs}
 %ghc_lib_build
@@ -192,6 +197,9 @@ echo "%{_datadir}/%{ghclibparser}/" >> %{ghclibparser}/ghc-ghc-lib-parser.files
 
 
 %changelog
+* Mon Jul 20 2020 Jens Petersen <petersen@redhat.com> - 3.1.6-4
+- enable armv7hl with -O0
+
 * Thu Jul 16 2020 Jens Petersen <petersen@redhat.com> - 3.1.6-3
 - update to 3.1.6