[crac] RFR: Remove criuengine dependency on libstdc++

[Anton Kozlov]

On Sat, 16 Sep 2023 13:37:45 GMT, Jan Kratochvil <jkratochvil at openjdk.org> wrote:

> Convert it back to plain C. Port the error reporting to plain C.

Marked as reviewed by akozlov (Lead).

src/java.base/unix/native/criuengine/criuengine.c line 106:

> 104:     d = stpcpy(d, path2);
> 105:     *d++ = 0;
> 106:     return retval;

It can be probably replaced with `asprintf("%s/%s", path1, path2)`, but OK

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PR Review: https://git.openjdk.org/crac/pull/111#pullrequestreview-1632747678
PR Review Comment: https://git.openjdk.org/crac/pull/111#discussion_r1329789010