Bump

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "imagequant"
-version = "4.2.1"
+version = "4.2.2"
 description = "Convert 24/32-bit images to 8-bit palette with alpha channel.\nFor lossy PNG compression and high-quality GIF images\nDual-licensed like pngquant. See https://pngquant.org for details."
 authors = ["Kornel Lesiński <[email protected]>"]
 license = "GPL-3.0-or-later"
@@ -16,7 +16,7 @@ rust-version = "1.63"
 
 [features]
 default = ["threads"]
-threads = ["dep:rayon", "dep:num_cpus", "dep:thread_local"]
+threads = ["dep:rayon", "dep:thread_local"]
 # supports up to 2048 colors for palettes, but NOT FOR REMAPPING
 large_palettes = []
 
@@ -36,7 +36,6 @@ rgb = { version = "0.8.33", features = ["argb"] }
 rayon = { version = "1.5.3", optional = true }
 thread_local = { version = "1.1.4", optional = true }
 once_cell = "1.13.1"
-num_cpus = { version = "1.13.1", optional = true }
 
 [dev-dependencies]
 lodepng = "3.7.0"

imagequant-sys/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "imagequant-sys"
-version = "4.0.2"
+version = "4.0.3"
 description = "Convert 24/32-bit images to 8-bit palette with alpha channel.\nC API/FFI libimagequant that powers pngquant lossy PNG compressor.\n\nDual-licensed like pngquant. See https://pngquant.org for details."
 authors = ["Kornel Lesiński <[email protected]>"]
 license = "GPL-3.0-or-later"

src/lib.rs

@@ -38,7 +38,7 @@ mod rayoff;
 
 #[cfg(feature = "threads")]
 mod rayoff {
-    pub(crate) use num_cpus::get as num_cpus;
+    pub(crate) fn num_cpus() -> usize { std::thread::available_parallelism().map(|n| n.get()).unwrap_or(1) }
     pub(crate) use rayon::prelude::{ParallelBridge, ParallelIterator, ParallelSliceMut};
     pub(crate) use rayon::scope;
     pub(crate) use thread_local::ThreadLocal;