Use make macros

https://fedoraproject.org/wiki/Changes/UseMakeBuildInstallMacro

libvpx.spec

@@ -6,7 +6,7 @@
 Name:			libvpx
 Summary:		VP8/VP9 Video Codec SDK
 Version:		1.8.2
-Release:		3%{?dist}
+Release:		4%{?dist}
 License:		BSD
 #Source0:		http://downloads.webmproject.org/releases/webm/%{name}-%{version}.tar.bz2
 Source0:		https://github.com/webmproject/libvpx/archive/v%{version}.tar.gz
@@ -120,7 +120,7 @@ sed -i "s|NM=armv7hl-redhat-linux-gnueabi-nm|NM=nm|g" examples-%{vpxtarget}.mk
 sed -i "s|NM=armv7hl-redhat-linux-gnueabi-nm|NM=nm|g" docs-%{vpxtarget}.mk
 %endif
 
-make %{?_smp_mflags} verbose=true
+%make_build verbose=true
 
 # Manual shared library creation
 # We should never need to do this anymore, and if we do, we need to fix the version-script.
@@ -140,8 +140,8 @@ rm -rf tmp
 # We need to do this so the examples can link against it.
 # ln -sf libvpx.so.%{soversion} libvpx.so
 
-# make %{?_smp_mflags} verbose=true target=examples CONFIG_SHARED=1
-# make %{?_smp_mflags} verbose=true target=docs
+# %make_build verbose=true target=examples CONFIG_SHARED=1
+# %make_build verbose=true target=docs
 
 # Put them back so the install doesn't fail
 # mv libNOTvpx.a libvpx.a
@@ -237,6 +237,10 @@ rm -rf %{buildroot}%{_prefix}/src
 %{_bindir}/*
 
 %changelog
+* Mon Jul 13 2020 Tom Stellard <tstellar@redhat.com> - 1.8.2-4
+- Use make macros
+- https://fedoraproject.org/wiki/Changes/UseMakeBuildInstallMacro
+
 * Wed Jul 01 2020 Jeff Law <law@redhat.com> - 1.8.2-3
 - Disable LTO