1 files changed, 0 insertions, 74 deletions
diff --git a/build.rs b/build.rs
deleted file mode 100644
index e07ad6f..0000000
--- a/build.rs
+++ /dev/null
@@ -1,74 +0,0 @@
-use std::env;
-
-fn main() {
-    enable_simd_optimizations();
-    enable_libc();
-}
-
-// This adds various simd cfgs if this compiler and target support it.
-//
-// This can be disabled with RUSTFLAGS="--cfg memchr_disable_auto_simd", but
-// this is generally only intended for testing.
-//
-// On targets which don't feature SSE2, this is disabled, as LLVM wouln't know
-// how to work with SSE2 operands. Enabling SSE4.2 and AVX on SSE2-only targets
-// is not a problem. In that case, the fastest option will be chosen at
-// runtime.
-fn enable_simd_optimizations() {
-    if is_env_set("CARGO_CFG_MEMCHR_DISABLE_AUTO_SIMD")
-        || !target_has_feature("sse2")
-    {
-        return;
-    }
-    println!("cargo:rustc-cfg=memchr_runtime_simd");
-    println!("cargo:rustc-cfg=memchr_runtime_sse2");
-    println!("cargo:rustc-cfg=memchr_runtime_sse42");
-    println!("cargo:rustc-cfg=memchr_runtime_avx");
-}
-
-// This adds a `memchr_libc` cfg if and only if libc can be used, if no other
-// better option is available.
-//
-// This could be performed in the source code, but it's simpler to do it once
-// here and consolidate it into one cfg knob.
-//
-// Basically, we use libc only if its enabled and if we aren't targeting a
-// known bad platform. For example, wasm32 doesn't have a libc and the
-// performance of memchr on Windows is seemingly worse than the fallback
-// implementation.
-fn enable_libc() {
-    const NO_ARCH: &'static [&'static str] = &["wasm32", "windows"];
-    const NO_ENV: &'static [&'static str] = &["sgx"];
-
-    if !is_feature_set("LIBC") {
-        return;
-    }
-
-    let arch = match env::var("CARGO_CFG_TARGET_ARCH") {
-        Err(_) => return,
-        Ok(arch) => arch,
-    };
-    let env = match env::var("CARGO_CFG_TARGET_ENV") {
-        Err(_) => return,
-        Ok(env) => env,
-    };
-    if NO_ARCH.contains(&&*arch) || NO_ENV.contains(&&*env) {
-        return;
-    }
-
-    println!("cargo:rustc-cfg=memchr_libc");
-}
-
-fn is_feature_set(name: &str) -> bool {
-    is_env_set(&format!("CARGO_FEATURE_{}", name))
-}
-
-fn is_env_set(name: &str) -> bool {
-    env::var_os(name).is_some()
-}
-
-fn target_has_feature(feature: &str) -> bool {
-    env::var("CARGO_CFG_TARGET_FEATURE")
-        .map(|features| features.contains(feature))
-        .unwrap_or(false)
-}