Remove CURL warning and Makefile fix

[emasab]

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[Copilot]

Pull Request Overview

This PR removes a deprecation warning by using CURLOPT_PROTOCOLS_STR for newer libcurl versions while preserving compatibility for older distributions, and adds a shell override in the Makefile.

• Use CURLOPT_PROTOCOLS_STR for curl ≥ 7.85.0, fallback to CURLOPT_PROTOCOLS otherwise
• Set SHELL = bash in the Makefile for consistent shell behavior

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/rdhttp.c	Add version‐gated switch from CURLOPT_PROTOCOLS to CURLOPT_PROTOCOLS_STR
Makefile	Explicitly set the Makefile shell to bash

Comments suppressed due to low confidence (2)

src/rdhttp.c:146

• The date ‘06/10/2025’ in the comment can be ambiguous (MM/DD vs DD/MM). Use ISO 8601 (e.g. 2025-06-10) and/or reference a specific curl version or issue tracker for when to remove the conditional.

 * older CURL versions, remove this condition once they're not supported

Makefile:12

• Hard-coding SHELL = bash may break on systems without bash or with it in a non-standard path. Consider checking for bash availability or default to /bin/sh if bash-specific features aren’t required.

SHELL	= bash

[milindl]

lgtm. I checked documentation to ascertain that the older one is deprecated.