diff --git a/zeromq.spec b/zeromq.spec
index 2308c48..39ce041 100644
--- a/zeromq.spec
+++ b/zeromq.spec
@@ -16,7 +16,9 @@ BuildRequires:  libtool
 BuildRequires:  asciidoc
 BuildRequires:  xmlto
 BuildRequires:  libsodium-devel
+%ifarch %{arm} aarch64 hppa ia64 mips ppc %{power64} %{ix86} x86_64
 BuildRequires:  libunwind-devel
+%endif
 
 %if %{with pgm}
 BuildRequires:  openpgm-devel
@@ -62,7 +64,9 @@ autoreconf -fi
             --with-libgssapi_krb5 \
 %endif
             --with-libsodium \
+%ifarch %{arm} aarch64 hppa ia64 mips ppc %{power64} %{ix86} x86_64
             --enable-libunwind \
+%endif
             --disable-Werror \
             --disable-static
 %make_build
@@ -104,16 +108,6 @@ make check V=1 || ( cat test-suite.log && exit 1 )
 - Upstream upgrade
 - Fixes #1876738 and #1876689
 
-* Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.3.2-5
-- Second attempt - Rebuilt for
-  https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
-
-* Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.3.2-4
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
-
-* Wed Apr 15 2020 Dan Horák <dan[at]danny.cz> - 4.3.2-3
-- libunwind is available on all Fedora arches
-
 * Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.3.2-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild