rust-lang/libz-sys

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Rust crate package to link to a system libz (zlib)

Stars: 138
Forks: 88
Open beginner issues: 0
Indexed issues: 25

Dominant language: Rust
License: Apache-2.0
Last GitHub push: Jul 27, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: help wanted
PR merge metrics: No merged PRs in 30d

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25 open issues indexed

Compile Error on riscv64gc-unknown-linux-gnu after upgrading from 1.1.23 to 1.1.24 Open

help wanted

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/libz-sys#260 · 1 comment · Opened Feb 25, 2026
Fails with **note, vcpkg did not find zlib: the vcpkg-rs Vcpkg build helper can only find libraries built for the MSVC ABI.** when building for -gnu and all MSYS2 libraries are present? Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

rust-lang/libz-sys#249 · Opened Sep 3, 2025
MacOS: fails to compile Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 28/100

rust-lang/libz-sys#245 · 3 comments · Opened Jul 7, 2025
zlib-ng-no-cmake-experimental-community-maintained breaks OSX builds Open

bug help wanted

Difficulty 3/5 1-2 days Newbie friendliness 25/100

rust-lang/libz-sys#230 · 3 comments · Opened Dec 5, 2024
1.1.20 failed in cmake stage on windows 10 Open

help wanted question

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/libz-sys#229 · 13 comments · Opened Nov 24, 2024
Compile error on Windows 11 (and Github actions) when using libz-ng-sys 1.1.20 Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

rust-lang/libz-sys#225 · 10 comments · Opened Oct 28, 2024
Unpaired surrogate in any env var stalls libz-ng-sys build on Windows Open

bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/libz-sys#215 · 5 comments · Opened Sep 5, 2024
Link against shared zlib library when cross-compiling Open

bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 42/100

rust-lang/libz-sys#201 · 9 comments · Opened Aug 8, 2024
zlib-ng: Illegal instruction on riscv64gc-unknown-linux-gnu Open

blocked bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 30/100

rust-lang/libz-sys#200 · 12 comments · Opened Aug 8, 2024
Can't build libz-ng-sys on i686-pc-windows-msvc Open

bug help wanted

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/libz-sys#197 · 3 comments · Opened Jun 29, 2024
Build fails on powerpc64 and powerpc64le: error: use of undeclared identifier 'power_cpu_has_arch_3_00' Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/libz-sys#183 · 7 comments · Opened Feb 2, 2024
Very slow compilation under Windows with libz-ng-sys Open

question

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/libz-sys#171 · 4 comments · Opened Jan 13, 2024
Dynamically link zlib-ng Open

enhancement help wanted

Difficulty 5/5 Over a week Newbie friendliness 25/100

rust-lang/libz-sys#158 · 4 comments · 9 reactions · Opened Sep 21, 2023
Failed to build zlib-ng with gnullvm target. Open

help wanted

Difficulty 4/5 3-5 days Newbie friendliness 25/100

rust-lang/libz-sys#153 · 6 comments · Opened Sep 2, 2023
libz-ng: illegal instruction on `x86_64-unkown-linux-{musl, gnu}` Open

help wanted question

Difficulty 4/5 3-5 days Newbie friendliness 25/100

rust-lang/libz-sys#148 · 4 comments · Opened Aug 1, 2023
Add ZLIB_DIR config option, and don't vendor zlib or zlib-ng automatically Open

bug help wanted

Difficulty 5/5 Over a week Newbie friendliness 35/100

rust-lang/libz-sys#147 · 12 comments · 1 reaction · Opened Jul 28, 2023
Support using pkg-config for zlib-ng Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/libz-sys#110 · 2 comments · 4 reactions · Opened Jan 1, 2023
crate wants to install to /usr/local during building Open

question

Difficulty 3/5 1-2 days Newbie friendliness 35/100

rust-lang/libz-sys#109 · 1 comment · 1 reaction · Opened Dec 2, 2022
Failed to compile libz-ng-sys v1.1.8 on armv7-unknown-linux-gnueabihf Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/libz-sys#108 · 10 comments · Opened Oct 8, 2022
Problems reading GZIPPED file with libz-sys > 1.1.5 and zlib-ng-compat Open

Difficulty 4/5 3-5 days Newbie friendliness 38/100

rust-lang/libz-sys#104 · 1 reaction · Opened Jul 5, 2022
No available targets are compatible with triple "wasm32-unknown-unknown" Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/libz-sys#103 · 2 comments · Opened Jun 18, 2022
Build fails with `unrecognized command-line option '-arch'` when cross-compiling Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

rust-lang/libz-sys#93 · 4 comments · 1 reaction · Opened Mar 28, 2022
Allow linking against system zlib-ng Open

Difficulty 4/5 3-5 days Newbie friendliness 42/100

rust-lang/libz-sys#83 · 5 comments · 4 reactions · Opened Nov 11, 2021
Linking fails on Windows if other -sys crates link to the system zlib Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

rust-lang/libz-sys#56 · Opened Sep 24, 2019
ABI break: z_stream::zalloc and z_stream::zfree should be able to set to None (null) Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

rust-lang/libz-sys#55 · 9 comments · Opened Sep 11, 2019

rust-lang/libz-sys

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