Use cc 1.0, which replaces the old gcc crate.

Cargo.toml

@@ -287,7 +287,7 @@ lazy_static = "0.2.8"
 # we do not use the gcc parallel feature because we do the
 # parallelism ourself. This gives us a much higher level of
 # control about what should be parallised in which way
-gcc = "0.3.53"
+cc = "1.0"
 rayon = "0.8.2"
 
 [features]

build.rs

@@ -37,7 +37,7 @@
     warnings,
 )]
 
-extern crate gcc;
+extern crate cc;
 extern crate rayon;
 
 // In the `pregenerate_asm_main()` case we don't want to access (Cargo)
@@ -473,7 +473,7 @@ fn build_library(target: &Target, out_dir: &Path, lib_name: &str,
         .with_max_len(1)
         .map(|f| Path::new(f))
         .any(|p| need_run(&p, &lib_path, includes_modified)) {
-        let mut c = gcc::Build::new();
+        let mut c = cc::Build::new();
 
         for f in LD_FLAGS {
             let _ = c.flag(&f);
@@ -534,7 +534,7 @@ fn obj_path(out_dir: &Path, src: &Path, obj_ext: &str) -> PathBuf {
 fn cc(file: &Path, ext: &str, target: &Target, warnings_are_errors: bool,
       out_dir: &Path)
       -> Command {
-    let mut c = gcc::Build::new();
+    let mut c = cc::Build::new();
     let _ = c.include("include");
     match ext {
         "c" => {

pregenerate_asm/Cargo.toml

@@ -12,5 +12,5 @@ path = "../build.rs"
 # we do not use the gcc parallel feature because we do the
 # parallelism ourself. This gives us a much higher level of
 # control about what should be parallised in which way
-gcc = "0.3.53"
+cc = "1.0"
 rayon = "0.8.2"