core: add preprocessor for versioning

src/core/scanenv.cpp

@@ -0,0 +1,22 @@
+#include "scanenv.hpp"
+
+#include <qcontainerfwd.h>
+
+#include "build.hpp"
+
+namespace qs::scan::env {
+
+bool PreprocEnv::hasVersion(int major, int minor, const QStringList& features) {
+	if (QS_VERSION_MAJOR > major) return true;
+	if (QS_VERSION_MAJOR == major && QS_VERSION_MINOR > minor) return true;
+
+	auto availFeatures = QString(QS_UNRELEASED_FEATURES).split(';');
+
+	for (const auto& feature: features) {
+		if (!availFeatures.contains(feature)) return false;
+	}
+
+	return QS_VERSION_MAJOR == major && QS_VERSION_MINOR == minor;
+}
+
+} // namespace qs::scan::env