[RFC] Consider to replace zlib with zlib-ng

[ptr1337]

Copy from Fedora RFC:

Zlib has long served as a reliable compression library, but its performance on modern CPU architectures does not fully utilize their capabilities. The transition to Zlib-ng aims to enhance the compression efficiency and performance for Fedora while ensuring compatibility with existing packages and libraries.

Benefits for CachyOS

• Zlib-ng supports hardware acceleration when available
• Adler32 implementation using SSSE3, AVX2, AVX512, AVX512-VNNI, Neon, VMX & VSX
• CRC32-B implementation using PCLMULQDQ, VPCLMULQDQ, ACLE, & IBM Z
• Hash table implementation using CRC32-C intrinsics on x86 and ARM
• Slide hash implementations using SSE2, AVX2, ARMv6, Neon, VMX & VSX
• Compare256 implementations using SSE2, AVX2, Neon, POWER9 & RVV
• Inflate chunk copying using SSE2, SSSE3, AVX, Neon & VSX
• Support for hardware-accelerated deflate using IBM Z DFLTCC
• Includes Intel and Cloudflare optimizations
• Uses code sanitizers, fuzzing, and code coverage

Integration

1. Install zlib-ng to users system
2. Provide and install zlib-ng-compat from the AUR into the cachyos-repository
3. Likely, create a lib32-zlib-ng and lib32-zlib-ng compat package, which replaces zlib-ng

Question

We need to look into, if there are any recompilation required. Normally, this should work as drop in replacement but should be looked deeper into

[ptr1337]

Im running currently zlib-ng-compat on my system, and did not notice any major flaws yet.
It requires a little hacky workaround, when using not a lib32-zlib-ng-compat.