lib/odbc: use iodbc when available

[catap]

iodbc has the same API and it migth be tricky to install both iodbc and unixodbc on the same machine.

Let allow to build erlang with iodbc as well.

[CLAassistant]

All committers have signed the CLA.

[github-actions]

CT Test Results

  2 files   15 suites   6m 12s ⏱️
201 tests 182 ✅ 19 💤 0 ❌
217 runs  198 ✅ 19 💤 0 ❌

Results for commit bef3a2e.

♻️ This comment has been updated with latest results.

To speed up review, make sure that you have read Contributing to Erlang/OTP and that all checks pass.

See the TESTING and DEVELOPMENT HowTo guides for details about how to run test locally.

Artifacts

• Complete CT logs (Download Logs)
• HTML Documentation (Download HTML Docs)
• Windows Installer

// Erlang/OTP Github Action Bot

[IngelaAndin]

I think this sounds like desirable, and I asked for some input from other team-member that have to deal with configure more often than me. So hopefully they will have time to look sometime "soonish", however it is not a high priority compared to other things.

[IngelaAndin]

@catap I got some more input, and could you please remove the updated of the generated file configure, this should be updated by us when building. You should only change configure.ac Otherwise it is looking good.

[IngelaAndin]

Do not update the generated file as I commented in main PR thread.

[catap]

@IngelaAndin here a rebased to the last master version which keeps only changes in configure.ac

[IngelaAndin]

Thank you for the PR merged for OTP-28