f0fc035087
Require targeting macOS 10.10, in case the user builds with an older SDK or sets the target version to an older release. This shouldn't be a problem with modern macOS SDKs, but users using or targeting older macOS should have a better message available rather than a compile message. The check is ugly, but it should work. A similar check is done for block support; this should only be a problem with users using GCC instead of clang, which is default on macOS. Also add a message for vmnet support when printing the build config.
Open SIMH machine simulator
This is the codebase of SIMH, a framework and collection of computer system simulators.
SIMH was created by Bob Supnik, originally at Digital Equipment Corporation, and extended by contributions of many other people. It is now an open source project, licensed under an MIT open source license (see LICENSE.txt for the specific wording). The project gatekeepers are the members of the SIMH Steering Group. We welcome and encourage contributions from all. Contributions will be covered by the project license.
The Open SIMH code base was taken from a code base maintained by Mark Pizzolato as of 12 May 2022. From that point onward there is no connection between that source and the Open SIMH code base. A detailed listing of features as of that point may be found in SIMH-V4-status.
PLEASE NOTE
Do not contribute material taken from github.com/simh/simh unless you are the author of the material in question.
