Build libzstd with multi-threading support

Signed-off-by: Igor Raits <ignatenkobrain@fedoraproject.org>

zstd.spec

@@ -13,7 +13,7 @@
 
 Name:           zstd
 Version:        1.4.5
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        Zstd compression library
 
 License:        BSD and GPLv2
@@ -63,9 +63,8 @@ find -name .gitignore -delete
 %build
 export CFLAGS="$RPM_OPT_FLAGS"
 export LDFLAGS="$RPM_LD_FLAGS"
-for dir in lib programs; do
-  %make_build -C "$dir"
-done
+%make_build -C lib lib-mt
+%make_build -C programs
 %if %{with pzstd}
 export CXXFLAGS="$RPM_OPT_FLAGS -std=c++11"
 %make_build -C contrib/pzstd
@@ -124,6 +123,9 @@ install -D -m644 programs/%{name}.1 %{buildroot}%{_mandir}/man1/p%{name}.1
 %ldconfig_scriptlets -n lib%{name}
 
 %changelog
+* Sat Jul 11 2020 Igor Raits <ignatenkobrain@fedoraproject.org> - 1.4.5-4
+- Build libzstd with multi-threading support
+
 * Mon May 25 2020 Pádraig Brady <P@draigBrady.com> - 1.4.5-3
 - Build shared library with correct compiler flags