Spec file cleanup

patch.spec

@@ -5,8 +5,8 @@ Name: patch
 Version: 2.7.6
 Release: 13%{?dist}
 License: GPLv3+
-URL: http://www.gnu.org/software/patch/patch.html
-Source: ftp://ftp.gnu.org/gnu/patch/patch-%{version}.tar.xz
+URL: https://savannah.gnu.org/projects/patch/
+Source: https://ftp.gnu.org/gnu/patch/patch-%{version}.tar.xz
 Patch0: patch-2.7.6-avoid-set_file_attributes-sign-conversion-warnings.patch
 patch1: patch-2.7.6-test-suite-compatibility-fixes.patch
 Patch2: patch-2.7.6-fix-korn-shell-incompatibility.patch
@@ -92,13 +92,12 @@ CFLAGS=`echo $CFLAGS|sed -e 's|-fstack-protector||g'`
 %endif
 autoreconf
 %configure --disable-silent-rules
-make %{?_smp_mflags}
+%make_build
 
 %check
 make check
 
 %install
-rm -rf $RPM_BUILD_ROOT
 %makeinstall
 
 %files