remove %_isa from BR

darcs.spec

@@ -18,7 +18,7 @@
 Name:           %{pkg_name}
 Version:        2.13.0
 # can only be reset when all subpkgs bumped
-Release:        13%{?dist}
+Release:        14%{?dist}
 Summary:        Distributed Advanced Revision Control System
 
 License:        GPLv2+
@@ -78,7 +78,7 @@ BuildRequires:  ghc-utf8-string-devel
 BuildRequires:  ghc-vector-devel
 BuildRequires:  ghc-zip-archive-devel
 BuildRequires:  ghc-zlib-devel
-BuildRequires:  libcurl-devel%{?_isa}
+BuildRequires:  libcurl-devel
 %if %{with tests}
 BuildRequires:  ghc-FindBin-devel
 BuildRequires:  ghc-HUnit-devel
@@ -209,6 +209,9 @@ install -Dpm 644 contrib/darcs_completion %{buildroot}%{_datadir}/bash-completio
 
 
 %changelog
+* Thu Feb 15 2018 Jens Petersen <petersen@redhat.com> - 2.13.0-14
+- remove _isa from BR (#1545171)
+
 * Wed Feb 07 2018 Fedora Release Engineering <releng@fedoraproject.org> - 2.13.0-13
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild