Include AML version as macro and runtime variable
- Add #define AML_VERSION 0.1.0 in aml.h
- Add extern aml_version in aml.h
- Define aml version in configure.ac
- Link .o conatining aml_version definition according to configure.ac version.
- Check version at runtime: AML_VERSION == aml_version. If False, header may not be the same and code may fail awkwardly at runtime.