Use %bcond_without for conditional compilation

uglify-js.spec

@@ -1,7 +1,7 @@
 %{?nodejs_find_provides_and_requires}
 
 #enable/disable tests in case the deps aren't there
-%global enable_tests 1
+%bcond_without tests
 
 Name:           uglify-js
 Version:        2.8.22
@@ -20,7 +20,7 @@ Provides:       nodejs-uglify-js = %{version}-%{release}
 BuildRequires:  nodejs-packaging
 BuildRequires:  web-assets-devel
 
-%if 0%{?enable_tests}
+%if %{with tests}
 BuildRequires:  npm(acorn)
 BuildRequires:  npm(async)
 BuildRequires:  npm(mocha)
@@ -92,7 +92,7 @@ ln -sf uglify-js@2 %{buildroot}%{nodejs_sitelib}/uglify-js
 %check
 %nodejs_symlink_deps --check
 %{__nodejs} -e 'require("./")'
-%if 0%{?enable_tests}
+%if %{with tests}
 # Prevent timeout error on an ARM builder which is slower than the x86 builder.
 sed -i '/timeout/ s/5000/10000/' test/mocha/cli.js
 sed -i '/timeout/ s/10000/20000/' test/mocha/let.js
@@ -133,6 +133,7 @@ end
 * Wed Jan 22 2020 Jan Staněk <jstanek@redhat.com> - 2.8.22-8
 - Remove unneeded legacy conditionals around %%{nodejs_arches} and %%{_jsdir}
 - Disable colors in tests
+- Use %%bcond_without for conditional compilation
 
 * Sat Jul 27 2019 Fedora Release Engineering <releng@fedoraproject.org> - 2.8.22-7
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild