Vendor things

third-party/vendor/generator/build.rs

@@ -0,0 +1,87 @@
+extern crate cc;
+
+use std::env;
+use std::path::PathBuf;
+
+fn main() {
+    // Set cfg flags depending on release channel
+    if NIGHTLY {
+        println!("cargo:rustc-cfg=nightly");
+    }
+
+    // for the stable build asm lib
+    let target: String = env::var("TARGET").unwrap();
+    let is_win_gnu = target.ends_with("windows-gnu");
+    let is_win_msvc = target.ends_with("windows-msvc");
+    let is_win = is_win_gnu || is_win_msvc;
+
+    let arch = match target.split('-').next().unwrap() {
+        // "arm" | "armv7" | "armv7s" => "arm",
+        "arm64" | "aarch64" => "aarch64",
+        // "x86" | "i386" | "i486" | "i586" | "i686" => "i386",
+        // "mips" | "mipsel" => "mips32",
+        // "powerpc" => "ppc32",
+        // "powerpc64" => "ppc64",
+        "x86_64" => "x86_64",
+        _ => {
+            panic!("Unsupported architecture: {target}");
+        }
+    };
+
+    let abi = match arch {
+        "arm" | "aarch64" => "aapcs",
+        "mips32" => "o32",
+        _ => {
+            if is_win {
+                "ms"
+            } else {
+                "sysv"
+            }
+        }
+    };
+
+    let format = if is_win {
+        "pe"
+    } else if target.contains("apple") {
+        "macho"
+    } else if target.ends_with("aix") {
+        "xcoff"
+    } else {
+        "elf"
+    };
+
+    let (asm, ext) = if is_win_msvc {
+        if arch == "arm" {
+            ("armasm", "asm")
+        } else {
+            ("masm", "asm")
+        }
+    } else if is_win_gnu {
+        ("gas", "asm")
+    } else {
+        ("gas", "S")
+    };
+
+    let mut path: PathBuf = "src/detail/asm".into();
+    let mut config = cc::Build::new();
+
+    if is_win_gnu {
+        config.flag("-x").flag("assembler-with-cpp");
+    }
+
+    let file_name: [&str; 11] = ["asm", "_", arch, "_", abi, "_", format, "_", asm, ".", ext];
+    let file_name = file_name.concat();
+
+    path.push(file_name);
+    println!("cargo:rerun-if-changed={}", path.display());
+    config.file(path);
+
+    // create the static asm libary
+    config.compile("libasm.a");
+}
+
+#[rustversion::nightly]
+const NIGHTLY: bool = true;
+
+#[rustversion::not(nightly)]
+const NIGHTLY: bool = false;