[crac] RFR: 8350845: [CRaC] Support C/R engines in form of a library [v2]

[Timofei Pushkin]

On Fri, 28 Feb 2025 08:58:05 GMT, Radim Vansa <rvansa at openjdk.org> wrote:

>> This is plain C, AFAIK raw string literals are not a part of C standard. I believe gcc still supports them but not sure about MSVC.
>
> Would it be a problem to turn this into C++?

I've converted crexec to C++ but left these as usual strings because with raw string literals the long lines are harder to read in code editors (in the terminal they are wrapped automatically)

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PR Review Comment: https://git.openjdk.org/crac/pull/207#discussion_r1978926312