Bug#1138460: Fix for virtuoso-opensource FTBFS with OpenSSL 4.0

[Ruan Cardoso Comelli]

Dear virtuoso-opensource maintainers,

I have developed a patch that allows virtuoso-opensource to build with both
OpenSSL 3.x and OpenSSL 4.0 [1].

The FTBFS was caused by two main issues:
- the code directly accessed internal fields that have been made opaque in
OpenSSL 4.0. The patch updates these to use the appropriate accessors.
- several OpenSSL functions now return const pointers. The patch updates
the relevant call sites to match their

I have attached the patch to this message. Please let me know if you need
anything else.

Best wishes,
Ruan

[1]:
https://launchpad.net/~ruancomelli/+archive/ubuntu/fix-lp2155011/+sourcepub/18550551/+listing-archive-extra
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