1 files changed, 0 insertions, 144 deletions
diff --git a/libc/build.rs b/libc/build.rs
deleted file mode 100644
index f447c0e..0000000
--- a/libc/build.rs
+++ /dev/null
@@ -1,144 +0,0 @@
-use std::env;
-use std::process::Command;
-use std::str;
-
-fn main() {
-    let (rustc_minor_ver, is_nightly) =
-        rustc_minor_nightly().expect("Failed to get rustc version");
-    let rustc_dep_of_std = env::var("CARGO_FEATURE_RUSTC_DEP_OF_STD").is_ok();
-    let align_cargo_feature = env::var("CARGO_FEATURE_ALIGN").is_ok();
-    let const_extern_fn_cargo_feature =
-        env::var("CARGO_FEATURE_CONST_EXTERN_FN").is_ok();
-    let libc_ci = env::var("LIBC_CI").is_ok();
-
-    if env::var("CARGO_FEATURE_USE_STD").is_ok() {
-        println!(
-            "cargo:warning=\"libc's use_std cargo feature is deprecated since libc 0.2.55; \
-             please consider using the `std` cargo feature instead\""
-        );
-    }
-
-    // The ABI of libc used by libstd is backward compatible with FreeBSD 10.
-    // The ABI of libc from crates.io is backward compatible with FreeBSD 11.
-    //
-    // On CI, we detect the actual FreeBSD version and match its ABI exactly,
-    // running tests to ensure that the ABI is correct.
-    match which_freebsd() {
-        Some(10) if libc_ci || rustc_dep_of_std => {
-            println!("cargo:rustc-cfg=freebsd10")
-        }
-        Some(11) if libc_ci => println!("cargo:rustc-cfg=freebsd11"),
-        Some(12) if libc_ci => println!("cargo:rustc-cfg=freebsd12"),
-        Some(13) if libc_ci => println!("cargo:rustc-cfg=freebsd13"),
-        Some(_) | None => println!("cargo:rustc-cfg=freebsd11"),
-    }
-
-    // On CI: deny all warnings
-    if libc_ci {
-        println!("cargo:rustc-cfg=libc_deny_warnings");
-    }
-
-    // Rust >= 1.15 supports private module use:
-    if rustc_minor_ver >= 15 || rustc_dep_of_std {
-        println!("cargo:rustc-cfg=libc_priv_mod_use");
-    }
-
-    // Rust >= 1.19 supports unions:
-    if rustc_minor_ver >= 19 || rustc_dep_of_std {
-        println!("cargo:rustc-cfg=libc_union");
-    }
-
-    // Rust >= 1.24 supports const mem::size_of:
-    if rustc_minor_ver >= 24 || rustc_dep_of_std {
-        println!("cargo:rustc-cfg=libc_const_size_of");
-    }
-
-    // Rust >= 1.25 supports repr(align):
-    if rustc_minor_ver >= 25 || rustc_dep_of_std || align_cargo_feature {
-        println!("cargo:rustc-cfg=libc_align");
-    }
-
-    // Rust >= 1.30 supports `core::ffi::c_void`, so libc can just re-export it.
-    // Otherwise, it defines an incompatible type to retaining
-    // backwards-compatibility.
-    if rustc_minor_ver >= 30 || rustc_dep_of_std {
-        println!("cargo:rustc-cfg=libc_core_cvoid");
-    }
-
-    // Rust >= 1.33 supports repr(packed(N))
-    if rustc_minor_ver >= 33 || rustc_dep_of_std {
-        println!("cargo:rustc-cfg=libc_packedN");
-    }
-
-    // #[thread_local] is currently unstable
-    if rustc_dep_of_std {
-        println!("cargo:rustc-cfg=libc_thread_local");
-    }
-
-    if const_extern_fn_cargo_feature {
-        if !is_nightly || rustc_minor_ver < 40 {
-            panic!("const-extern-fn requires a nightly compiler >= 1.40")
-        }
-        println!("cargo:rustc-cfg=libc_const_extern_fn");
-    }
-}
-
-fn rustc_minor_nightly() -> Option<(u32, bool)> {
-    macro_rules! otry {
-        ($e:expr) => {
-            match $e {
-                Some(e) => e,
-                None => return None,
-            }
-        };
-    }
-
-    let rustc = otry!(env::var_os("RUSTC"));
-    let output = otry!(Command::new(rustc).arg("--version").output().ok());
-    let version = otry!(str::from_utf8(&output.stdout).ok());
-    let mut pieces = version.split('.');
-
-    if pieces.next() != Some("rustc 1") {
-        return None;
-    }
-
-    let minor = pieces.next();
-
-    // If `rustc` was built from a tarball, its version string
-    // will have neither a git hash nor a commit date
-    // (e.g. "rustc 1.39.0"). Treat this case as non-nightly,
-    // since a nightly build should either come from CI
-    // or a git checkout
-    let nightly_raw = otry!(pieces.next()).split('-').nth(1);
-    let nightly = nightly_raw
-        .map(|raw| raw.starts_with("dev") || raw.starts_with("nightly"))
-        .unwrap_or(false);
-    let minor = otry!(otry!(minor).parse().ok());
-
-    Some((minor, nightly))
-}
-
-fn which_freebsd() -> Option<i32> {
-    let output = std::process::Command::new("freebsd-version").output().ok();
-    if output.is_none() {
-        return None;
-    }
-    let output = output.unwrap();
-    if !output.status.success() {
-        return None;
-    }
-
-    let stdout = String::from_utf8(output.stdout).ok();
-    if stdout.is_none() {
-        return None;
-    }
-    let stdout = stdout.unwrap();
-
-    match &stdout {
-        s if s.starts_with("10") => Some(10),
-        s if s.starts_with("11") => Some(11),
-        s if s.starts_with("12") => Some(12),
-        s if s.starts_with("13") => Some(13),
-        _ => None,
-    }
-}