Rename [default|extra]_cflags -> cc_[|un]handled_clags

Makes it explicit that these are in relation to the cc-rs crate.

src/bootstrap/src/core/build_steps/compile.rs

@@ -1582,8 +1582,8 @@ pub fn compiler_file(
         return PathBuf::new();
     }
     let mut cmd = command(compiler);
-    cmd.args(builder.default_cflags(target, c));
-    cmd.args(builder.extra_cflags(target, GitRepo::Rustc, c));
+    cmd.args(builder.cc_handled_clags(target, c));
+    cmd.args(builder.cc_unhandled_cflags(target, GitRepo::Rustc, c));
     cmd.arg(format!("-print-file-name={file}"));
     let out = cmd.run_capture_stdout(builder).stdout();
     PathBuf::from(out.trim())

src/bootstrap/src/core/build_steps/llvm.rs

@@ -763,9 +763,9 @@ fn configure_cmake(
     // Needs `suppressed_compiler_flag_prefixes` to be gone, and hence
     // https://github.com/llvm/llvm-project/issues/88780 to be fixed.
     let mut cflags: OsString = builder
-        .default_cflags(target, CLang::C)
+        .cc_handled_clags(target, CLang::C)
         .into_iter()
-        .chain(builder.extra_cflags(target, GitRepo::Llvm, CLang::C))
+        .chain(builder.cc_unhandled_cflags(target, GitRepo::Llvm, CLang::C))
         .filter(|flag| {
             !suppressed_compiler_flag_prefixes
                 .iter()
@@ -784,9 +784,9 @@ fn configure_cmake(
     }
     cfg.define("CMAKE_C_FLAGS", cflags);
     let mut cxxflags: OsString = builder
-        .default_cflags(target, CLang::Cxx)
+        .cc_handled_clags(target, CLang::Cxx)
         .into_iter()
-        .chain(builder.extra_cflags(target, GitRepo::Llvm, CLang::Cxx))
+        .chain(builder.cc_unhandled_cflags(target, GitRepo::Llvm, CLang::Cxx))
         .filter(|flag| {
             !suppressed_compiler_flag_prefixes
                 .iter()

src/bootstrap/src/core/build_steps/test.rs

@@ -2005,10 +2005,10 @@ NOTE: if you're sure you want to do this, please open an issue as to why. In the
         // Only pass correct values for these flags for the `run-make` suite as it
         // requires that a C++ compiler was configured which isn't always the case.
         if !builder.config.dry_run() && mode == "run-make" {
-            let mut cflags = builder.default_cflags(target, CLang::C);
-            cflags.extend(builder.extra_cflags(target, GitRepo::Rustc, CLang::C));
-            let mut cxxflags = builder.default_cflags(target, CLang::Cxx);
-            cxxflags.extend(builder.extra_cflags(target, GitRepo::Rustc, CLang::Cxx));
+            let mut cflags = builder.cc_handled_clags(target, CLang::C);
+            cflags.extend(builder.cc_unhandled_cflags(target, GitRepo::Rustc, CLang::C));
+            let mut cxxflags = builder.cc_handled_clags(target, CLang::Cxx);
+            cxxflags.extend(builder.cc_unhandled_cflags(target, GitRepo::Rustc, CLang::Cxx));
             cmd.arg("--cc")
                 .arg(builder.cc(target))
                 .arg("--cxx")

src/bootstrap/src/core/builder/cargo.rs

@@ -317,7 +317,7 @@ impl Cargo {
             let cc = ccacheify(&builder.cc(target));
             self.command.env(format!("CC_{triple_underscored}"), &cc);
 
-            let cflags = builder.extra_cflags(target, GitRepo::Rustc, CLang::C).join(" ");
+            let cflags = builder.cc_unhandled_cflags(target, GitRepo::Rustc, CLang::C).join(" ");
             self.command.env(format!("CFLAGS_{triple_underscored}"), &cflags);
 
             if let Some(ar) = builder.ar(target) {
@@ -329,7 +329,8 @@ impl Cargo {
 
             if let Ok(cxx) = builder.cxx(target) {
                 let cxx = ccacheify(&cxx);
-                let cxxflags = builder.extra_cflags(target, GitRepo::Rustc, CLang::Cxx).join(" ");
+                let cxxflags =
+                    builder.cc_unhandled_cflags(target, GitRepo::Rustc, CLang::Cxx).join(" ");
                 self.command
                     .env(format!("CXX_{triple_underscored}"), &cxx)
                     .env(format!("CXXFLAGS_{triple_underscored}"), cxxflags);

src/bootstrap/src/lib.rs

@@ -1142,7 +1142,7 @@ Executed at: {executed_at}"#,
 
     /// Returns C flags that `cc-rs` thinks should be enabled for the
     /// specified target by default.
-    fn default_cflags(&self, target: TargetSelection, c: CLang) -> Vec<String> {
+    fn cc_handled_clags(&self, target: TargetSelection, c: CLang) -> Vec<String> {
         if self.config.dry_run() {
             return Vec::new();
         }
@@ -1161,7 +1161,12 @@ Executed at: {executed_at}"#,
     }
 
     /// Returns extra C flags that `cc-rs` doesn't handle.
-    fn extra_cflags(&self, target: TargetSelection, which: GitRepo, c: CLang) -> Vec<String> {
+    fn cc_unhandled_cflags(
+        &self,
+        target: TargetSelection,
+        which: GitRepo,
+        c: CLang,
+    ) -> Vec<String> {
         let mut base = Vec::new();
 
         // If we're compiling C++ on macOS then we add a flag indicating that

src/bootstrap/src/utils/cc_detect.rs

@@ -142,8 +142,8 @@ pub fn find_target(build: &Build, target: TargetSelection) {
     };
 
     build.cc.borrow_mut().insert(target, compiler.clone());
-    let mut cflags = build.default_cflags(target, CLang::C);
-    cflags.extend(build.extra_cflags(target, GitRepo::Rustc, CLang::C));
+    let mut cflags = build.cc_handled_clags(target, CLang::C);
+    cflags.extend(build.cc_unhandled_cflags(target, GitRepo::Rustc, CLang::C));
 
     // If we use llvm-libunwind, we will need a C++ compiler as well for all targets
     // We'll need one anyways if the target triple is also a host triple
@@ -169,8 +169,8 @@ pub fn find_target(build: &Build, target: TargetSelection) {
     build.verbose(|| println!("CC_{} = {:?}", target.triple, build.cc(target)));
     build.verbose(|| println!("CFLAGS_{} = {cflags:?}", target.triple));
     if let Ok(cxx) = build.cxx(target) {
-        let mut cxxflags = build.default_cflags(target, CLang::Cxx);
-        cxxflags.extend(build.extra_cflags(target, GitRepo::Rustc, CLang::Cxx));
+        let mut cxxflags = build.cc_handled_clags(target, CLang::Cxx);
+        cxxflags.extend(build.cc_unhandled_cflags(target, GitRepo::Rustc, CLang::Cxx));
         build.verbose(|| println!("CXX_{} = {cxx:?}", target.triple));
         build.verbose(|| println!("CXXFLAGS_{} = {cxxflags:?}", target.triple));
     }