This mimics the behavior of coq_makefile a bit more, and will allow the next release of VST to be compatible with coq-native even when its dependencies are not. For example, compcert only installs .coq-native files since version 3.13, cf
https://github.com/AbsInt/CompCert/issues/476, and this change allows VST to be compatible with earlier versions of compcert even when coq-native is installed.
This mimics the behavior of
coq_makefile
a bit more, and will allow the next release of VST to be compatible with coq-native even when its dependencies are not. For example, compcert only installs .coq-native files since version 3.13, cf https://github.com/AbsInt/CompCert/issues/476, and this change allows VST to be compatible with earlier versions of compcert even when coq-native is installed.