Use %autosetup macro

libIDL.spec

@@ -39,8 +39,7 @@ programs that use libIDL.
 
 
 %prep
-%setup -q -n %{name}-%{version}
-%patch0 -p1 -b .multilib
+%autosetup -p1
 
 
 %build
@@ -85,6 +84,7 @@ rm -f $RPM_BUILD_ROOT%{_libdir}/*a
 - Rearrange whitespace
 - Use HTTPS URLs
 - Make glib2-devel dependency from -devel subpackage arch-specific
+- Use %%autosetup macro
 
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 0.8.14-23
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild