From 19935608e7e668d81d3b07e0121bfd98a042f189 Mon Sep 17 00:00:00 2001
From: nk_ysg <nk_ysg@163.com>
Date: Thu, 26 Oct 2023 20:42:20 +0800
Subject: [PATCH] remove Ofast

---
 consensus/cryptonight-rs/Cargo.toml |  1 -
 consensus/cryptonight-rs/build.rs   | 17 +----------------
 2 files changed, 1 insertion(+), 17 deletions(-)

diff --git a/consensus/cryptonight-rs/Cargo.toml b/consensus/cryptonight-rs/Cargo.toml
index 81314b6c34..b289793007 100644
--- a/consensus/cryptonight-rs/Cargo.toml
+++ b/consensus/cryptonight-rs/Cargo.toml
@@ -4,7 +4,6 @@ name = "bench"
 
 [build-dependencies]
 cc = "1.0"
-os_info = { version = "3", default-features = false }
 
 [dependencies]
 libc = { workspace = true }
diff --git a/consensus/cryptonight-rs/build.rs b/consensus/cryptonight-rs/build.rs
index 85ee62a1eb..977c078237 100644
--- a/consensus/cryptonight-rs/build.rs
+++ b/consensus/cryptonight-rs/build.rs
@@ -26,22 +26,7 @@ fn main() {
         config.flag("-maes").flag("-msse2");
     }
     if target_os.contains("linux") || target_os.contains("macos") {
-        let info = os_info::get();
-        let opt_level = env::var("OPT_LEVEL").expect("fetching OPT_LEVEL");
-        if info.os_type() == os_info::Type::Ubuntu
-            && info.version() == &os_info::Version::Custom("22.04".into())
-        {
-            if opt_level == "3" {
-                config.flag("-O2").flag("-fexceptions").flag("-std=gnu99");
-            } else {
-                config.flag("-fexceptions").flag("-std=gnu99");
-            }
-        } else {
-            config
-                .flag("-Ofast")
-                .flag("-fexceptions")
-                .flag("-std=gnu99");
-        }
+        config.flag("-fexceptions").flag("-std=gnu99");
     }
     config.compile("cryptonight");
 }