Use make macros

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

ocaml.spec

@@ -31,7 +31,7 @@
 
 Name:           ocaml
 Version:        4.11.0
-Release:        0.5.dev2%{?dist}
+Release:        0.6.dev2%{?dist}
 
 Summary:        OCaml compiler and programming environment
 
@@ -181,7 +181,7 @@ autoconf --force
 %define _lto_cflags %{nil}
 
 %ifnarch %{no_parallel_build_arches}
-make="make %{?_smp_mflags}"
+make="%make_build"
 %else
 unset MAKEFLAGS
 make=make
@@ -232,7 +232,7 @@ make -j1 all ||:
 
 
 %install
-make install DESTDIR=$RPM_BUILD_ROOT
+%make_install
 perl -pi -e "s|^$RPM_BUILD_ROOT||" $RPM_BUILD_ROOT%{_libdir}/ocaml/ld.conf
 
 echo %{version} > $RPM_BUILD_ROOT%{_libdir}/ocaml/fedora-ocaml-release
@@ -381,6 +381,10 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/ocaml/eventlog_metadata
 
 
 %changelog
+* Tue Jul 14 2020 Tom Stellard <tstellar@redhat.com> - 4.11.0-0.6.dev2
+- Use make macros
+- https://fedoraproject.org/wiki/Changes/UseMakeBuildInstallMacro
+
 * Wed Jul 01 2020 Jeff Law <law@redhat.com> - 4.11.0-0.5.dev2.fc33
 - Disable LTO