add run-make support for aix

Author: mustartt

src/tools/compiletest/src/directive-list.rs

@@ -35,6 +35,7 @@ const KNOWN_DIRECTIVE_NAMES: &[&str] = &[
     "ignore-64bit",
     "ignore-aarch64",
     "ignore-aarch64-unknown-linux-gnu",
+    "ignore-aix",
     "ignore-android",
     "ignore-apple",
     "ignore-arm",

src/tools/run-make-support/src/external_deps/rustc.rs

@@ -5,7 +5,7 @@ use crate::command::Command;
 use crate::env::env_var;
 use crate::path_helpers::cwd;
 use crate::util::set_host_rpath;
-use crate::{is_darwin, is_msvc, is_windows, uname};
+use crate::{is_aix, is_darwin, is_msvc, is_windows, uname};
 
 /// Construct a new `rustc` invocation. This will automatically set the library
 /// search path as `-L cwd()`. Use [`bare_rustc`] to avoid this.
@@ -365,6 +365,9 @@ impl Rustc {
             if is_msvc() { None } else { Some("-lstatic:-bundle=stdc++") }
         } else if is_darwin() {
             Some("-lc++")
+        } else if is_aix() {
+            self.cmd.arg("-lc++");
+            Some("-lc++abi")
         } else {
             match &uname()[..] {
                 "FreeBSD" | "SunOS" | "OpenBSD" => None,

src/tools/run-make-support/src/targets.rs

@@ -28,6 +28,12 @@ pub fn is_darwin() -> bool {
     target().contains("darwin")
 }
 
+/// Check if target uses AIX.
+#[must_use]
+pub fn is_aix() -> bool {
+    target().contains("aix")
+}
+
 /// Get the target OS on Apple operating systems.
 #[must_use]
 pub fn apple_os() -> &'static str {