64 lines
2.1 KiB
Rust
64 lines
2.1 KiB
Rust
//! This is a build script for Cargo https://crates.io/
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//! It produces a static library that can be used by C or Rust.
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extern crate cc;
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use std::env;
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use std::path::PathBuf;
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use std::fs::canonicalize;
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fn main() {
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let mut cc = cc::Build::new();
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let compiler = cc.get_compiler();
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cc.warnings(false);
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if env::var("PROFILE").map(|p|p != "debug").unwrap_or(true) {
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cc.define("NDEBUG", Some("1"));
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} else {
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cc.define("DEBUG", Some("1"));
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}
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if cfg!(feature = "openmp") {
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cc.flag(&env::var("DEP_OPENMP_FLAG").unwrap());
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}
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let target_arch = env::var("CARGO_CFG_TARGET_ARCH").expect("Needs CARGO_CFG_TARGET_ARCH");
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if target_arch =="x86_64" ||
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(target_arch == "x86" && cfg!(feature = "sse")) {
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cc.flag(if compiler.is_like_msvc() {"/arch:SSE2"} else {"-msse"});
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cc.define("USE_SSE", Some("1"));
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}
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let outdated_c_compiler = env::var("TARGET").unwrap().contains("windows-msvc");
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let has_msvc_files = PathBuf::from("msvc-dist/libimagequant.c").exists();
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if outdated_c_compiler && has_msvc_files {
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println!("cargo:include={}", canonicalize("msvc-dist").unwrap().display());
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cc.file("msvc-dist/libimagequant.c")
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.file("msvc-dist/nearest.c")
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.file("msvc-dist/kmeans.c")
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.file("msvc-dist/mediancut.c")
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.file("msvc-dist/mempool.c")
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.file("msvc-dist/pam.c")
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.file("msvc-dist/blur.c");
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} else {
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// This is so that I don't forget to publish MSVC version as well
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if !has_msvc_files {
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println!("cargo:warning=msvc-dist/ directory not present. MSVC builds may fail");
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}
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println!("cargo:include={}", canonicalize(".").unwrap().display());
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if !compiler.is_like_msvc() {
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cc.flag("-std=c99");
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}
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cc.file("libimagequant.c")
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.file("nearest.c")
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.file("kmeans.c")
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.file("mediancut.c")
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.file("mempool.c")
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.file("pam.c")
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.file("blur.c");
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}
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cc.compile("libimagequant.a");
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}
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