Use %make_build and %make_install macros

wdiff.spec

@@ -37,11 +37,11 @@ mv ChangeLog.new ChangeLog
 
 %build
 %configure --enable-experimental="mdiff wdiff2 unify" 
-make %{?_smp_mflags}
+%make_build
 
 
 %install
-make install DESTDIR=$RPM_BUILD_ROOT INSTALL="install -p"
+%make_install
 rm -f $RPM_BUILD_ROOT%{_infodir}/dir
 find $RPM_BUILD_ROOT -type f -name '*gnulib.mo' -exec rm -f {} ';'
 
@@ -58,6 +58,7 @@ find $RPM_BUILD_ROOT -type f -name '*gnulib.mo' -exec rm -f {} ';'
 * Sun Feb 07 2021 Benjamin A. Beasley <code@musicinmybrain.net> - 1.2.2-17
 - Change URLs from HTTP to HTTPS
 - Add source file signature verification
+- Use %%make_build and %%make_install macros
 
 * Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.2-16
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild