refactor: make config script deterministic for building c library, fixes

[kwvg]

The current behavior of Miracl Core's config*.py for C are as follows

• It crashes when a non-integer input is given
• Each run of the script modifies the source tree in a way that is disruptive, forcing the user to run git reset --hard just to be able to run the script a second time
• The script litters the source tree with files that are generated ethereally, deleting source files instead
• Unlike every other curve, the Million Dollar Curve is referred to as MDC, Million Dollar Curve inconsistently and not by its technical name
• The script has an extreme reliance on the system shell to perform most operations, including trivial file deletion and copying
• The usage of gcc is presumed and the script needs manual modification if you choose to use clang, if both are installed, the script will still default to the slower gcc
• The compiler will try to invoke gcc anyway even if it isn't installed

These behaviors and some additional refactoring (moving globals and comments to more appropriate places) have been done, instead of one giant commit, changes have been done in steps to make reviewing easier, even if the next commit eventually neutralizes the changes done previously

[mcarrickscott]

Thanks! What about swift/config64.py...

[mcarrickscott]

Thanks! What about swift/config64.py?

[kwvg]

Don't really work with Swift so never looked into it, depending on this PR's response I was gonna make another one but for C++, I'll give Swift a look

[mcarrickscott]

Had to make a few changes. When all generated files are deleted, so were the headers! They are needed to compile test programs.

If testing, programs again run immediately (to be compatible with documentation and other languages)

Renamed Million Dollar Curve to simply MDC, as that is the name used in ROM files.

Your contribution flushed out a few other bugs, so thanks again.

Mike

On Sun, Jun 20, 2021 at 10:37 AM Kittywhiskers Van Gogh < @.***> wrote:

Don't really work with Swift so never looked into it, depending on this PR's response I was gonna make another one but for C++, I'll give Swift a look

— You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub https://github.com/miracl/core/pull/46#issuecomment-864526464, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAU3ZDXN5KWVMMYGMVLOCJTTTWZFLANCNFSM466ZOHJA .