neo-curl arrives from the future

Drop-in replacement for the neocurl SourceMod extension, in turn a drop-in replacement for the ancient SourceMod cURL extension.

• Builds with AMBuild instead of make, if for no other reason than to get cflags straight from the horse's mouth.
• Gets rid of vendored OpenSSL and cURL, and their vendored binary dependencies.
• Gets rid of smsdk_ext.{c,h} as those can be referenced from SourceMod.

Building

python configure.py --mms-path /path/metamod --sm-path /path/sourcemod
ambuild

Requirements:

• AMBuild
• SourceMod
• MetaMod: Source
• pkg-config, which should be able to find 32-bit:
• openssl
• libcurl, which for parity with neocurl, should apparently be built with at least:
  • brotli
  • zlib
  • zstd
  • gsasl
  • nghttp2
  • ngtcp2
  • ssh2
  • openssl >= 3.3 for QUIC

Upon success, you will find build/package/addons, ready to overlay on your server directory.

Releases

• statically linked releases would be irresponsible
• dynamically linked releases would be pointless

sorry mate just build it yourself

Licensing

tl;dr GPL3 with AlliedModders exceptions; see COPYING for more details. To the best of my knowledge, OpenSSL and cURL present no licensing incompatibilities via linkage.