diff --git a/ocaml-findlib.spec b/ocaml-findlib.spec
index 4ef04f2..6e353ea 100644
--- a/ocaml-findlib.spec
+++ b/ocaml-findlib.spec
@@ -24,7 +24,7 @@ Release:        0
 Summary:        Objective CAML package manager and build helper
 License:        MIT
 Group:          Development/Languages/OCaml
-
+BuildRoot:      %_tmppath/%name-%version-build
 Url:            https://github.com/ocaml/ocamlfind
 Source0:        findlib-%{version}.tar.xz
 #
@@ -32,12 +32,11 @@ Requires:       ocaml-compiler-libs
 Requires:       ocaml-runtime
 #
 Provides:       ocamlfind = %{version}
-
 BuildRequires:  m4
 BuildRequires:  ncurses-devel
 BuildRequires:  ocaml
 BuildRequires:  ocaml-ocamldoc
-BuildRequires:  ocaml-rpm-macros >= 20200220
+BuildRequires:  ocaml-rpm-macros >= 20210409
 
 %description
 Findlib is a library manager for Objective Caml. It provides a
@@ -58,7 +57,7 @@ The ocaml-findlib-devel package contains libraries and signature files
 for developing applications that use ocaml-findlib.
 
 %prep
-%autosetup -p1 -n findlib-%{version}
+%setup -q -n findlib-%{version}
 
 %build
 rm -rfv site-lib-src
@@ -70,7 +69,7 @@ tools/extract_args/extract_args -o src/findlib/ocaml_args.ml ocamlc ocamlcp ocam
   -mandir %{_mandir} \
   -with-toolbox
 make all
-%if 0%{?ocaml_native_compiler}
+%if 0%{?suse_ocaml_native_compiler}
 make opt
 %endif
 rm -fv doc/guide-html/TIMESTAMP
@@ -81,6 +80,7 @@ rm -rfv %{buildroot}%{ocaml_standard_library}/ocamlbuild
 %ocaml_create_file_list
 
 %files -f %{name}.files
+%defattr(-,root,root,-)
 %{ocaml_standard_library}/ocamlfind.conf
 %{ocaml_standard_library}/topfind
 %{_bindir}/*
@@ -88,6 +88,7 @@ rm -rfv %{buildroot}%{ocaml_standard_library}/ocamlbuild
 #
 
 %files devel -f %{name}.files.devel
+%defattr(-,root,root,-)
 %{ocaml_standard_library}/*/Makefile.config
 
 %changelog