From 29fc07ef291593b5c4b9b2587ca184ab3d890650 Mon Sep 17 00:00:00 2001
From: bridiver <34129+bridiver@users.noreply.github.com>
Date: Tue, 22 Aug 2023 10:05:27 -0700
Subject: [PATCH] disable autocfg probe and move config options to gn for
 num_bigint

---
 build/commands/lib/config.js                  |  6 ----
 patches/build-rust-run_build_script.py.patch  | 20 ------------
 patches/build-rust-rust_target.gni.patch      |  9 +++---
 patches/build-rust-std-rules-BUILD.gn.patch   | 13 --------
 .../v0_4/0001-remove-autocfg-probe.diff       | 22 +++++++++++++
 third_party/rust/lock_api/v0_4/BUILD.gn       |  4 +++
 third_party/rust/lock_api/v0_4/crate/build.rs |  1 +
 third_party/rust/num_bigint/v0_2/BUILD.gn     |  4 +++
 .../rust/num_bigint/v0_2/crate/build.rs       |  1 +
 .../patches/0001-remove-autocfg-probe.diff    | 24 ++++++++++++++
 third_party/rust/num_bigint/v0_3/BUILD.gn     | 10 ++++++
 .../rust/num_bigint/v0_3/crate/build.rs       |  2 ++
 .../patches/0001-remove-autocfg-probe.diff    | 32 +++++++++++++++++++
 third_party/rust/num_bigint/v0_4/BUILD.gn     | 10 ++++++
 .../rust/num_bigint/v0_4/crate/build.rs       |  2 ++
 .../patches/0001-remove-autocfg-probe.diff    | 32 +++++++++++++++++++
 third_party/rust/num_traits/v0_2/BUILD.gn     | 16 ++++++++++
 .../rust/num_traits/v0_2/crate/build.rs       |  1 +
 .../patches/0001-remove-autocfg-probe.diff    | 24 ++++++++++++++
 third_party/rust/slab/v0_4/crate/build.rs     |  1 +
 .../patches/0001-remove-autocfg-probe.diff    | 22 +++++++++++++
 third_party/rust/third_party.toml             | 19 +++++++++++
 22 files changed, 231 insertions(+), 44 deletions(-)
 delete mode 100644 patches/build-rust-run_build_script.py.patch
 delete mode 100644 patches/build-rust-std-rules-BUILD.gn.patch
 create mode 100644 third_party/rust/lock_api/v0_4/0001-remove-autocfg-probe.diff
 create mode 100644 third_party/rust/num_bigint/v0_2/patches/0001-remove-autocfg-probe.diff
 create mode 100644 third_party/rust/num_bigint/v0_3/patches/0001-remove-autocfg-probe.diff
 create mode 100644 third_party/rust/num_bigint/v0_4/patches/0001-remove-autocfg-probe.diff
 create mode 100644 third_party/rust/num_traits/v0_2/patches/0001-remove-autocfg-probe.diff
 create mode 100644 third_party/rust/slab/v0_4/patches/0001-remove-autocfg-probe.diff

diff --git a/build/commands/lib/config.js b/build/commands/lib/config.js
index bc3c9f87b554..210d60b14e9c 100644
--- a/build/commands/lib/config.js
+++ b/build/commands/lib/config.js
@@ -562,12 +562,6 @@ Config.prototype.buildArgs = function () {
     // We want it to be enabled for all configurations
     args.disable_android_lint = false
 
-    if (this.targetArch === 'arm64') {
-      // TODO: Ideally we should properly compile our rust libraries in order to
-      // be able to use default 'standard' flow integrity. For now just revert
-      // it to 'pac'.
-      args.arm_control_flow_integrity = 'pac'
-    }
     args.android_aab_to_apk = this.androidAabToApk
 
     // These do not exist on android
diff --git a/patches/build-rust-run_build_script.py.patch b/patches/build-rust-run_build_script.py.patch
deleted file mode 100644
index 6784a0dbbd80..000000000000
--- a/patches/build-rust-run_build_script.py.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-diff --git a/build/rust/run_build_script.py b/build/rust/run_build_script.py
-index fe8eb107cd720ade5af9bed7e99f817565d23a8c..5617360ca88c936d6d82dca8ae13f469ed85631e 100755
---- a/build/rust/run_build_script.py
-+++ b/build/rust/run_build_script.py
-@@ -101,11 +101,12 @@ def main():
-     env["OUT_DIR"] = tempdir
-     env["CARGO_MANIFEST_DIR"] = os.path.abspath(args.src_dir)
-     env["HOST"] = host_triple(rustc_path)
-+    env["TARGET"] = env["HOST"]
-     if args.target is None:
--      env["TARGET"] = env["HOST"]
-+      target = env["TARGET"]
-     else:
--      env["TARGET"] = args.target
--    target_components = env["TARGET"].split("-")
-+      target = args.target
-+    target_components = target.split("-")
-     if len(target_components) == 2:
-       env["CARGO_CFG_TARGET_ARCH"] = target_components[0]
-       env["CARGO_CFG_TARGET_VENDOR"] = ''
diff --git a/patches/build-rust-rust_target.gni.patch b/patches/build-rust-rust_target.gni.patch
index bf8ce1fe9edc..832e00ec9beb 100644
--- a/patches/build-rust-rust_target.gni.patch
+++ b/patches/build-rust-rust_target.gni.patch
@@ -1,14 +1,13 @@
 diff --git a/build/rust/rust_target.gni b/build/rust/rust_target.gni
-index 1fdad6338f3aeb5cf2d1811891bd26173e981525..37332a6483218c3084507ef55689710b60da4f31 100644
+index 1fdad6338f3aeb5cf2d1811891bd26173e981525..a0a56a47e95d5fea755f40a63ab0007532f2d858 100644
 --- a/build/rust/rust_target.gni
 +++ b/build/rust/rust_target.gni
-@@ -172,8 +172,7 @@ template("rust_target") {
-                "outside the Chromium build.")
+@@ -173,7 +173,7 @@ template("rust_target") {
      _cxx_bindings = invoker.cxx_bindings
    }
--  _rustenv = [ "OUT_DIR=" +
+   _rustenv = [ "OUT_DIR=" +
 -               rebase_path(_env_out_dir, get_path_info(_crate_root, "dir")) ]
-+  _rustenv = [ "OUT_DIR=" + rebase_path(_env_out_dir) ]
++               rebase_path(_env_out_dir) ]
    if (defined(invoker.rustenv)) {
      _rustenv += invoker.rustenv
    }
diff --git a/patches/build-rust-std-rules-BUILD.gn.patch b/patches/build-rust-std-rules-BUILD.gn.patch
deleted file mode 100644
index 15d0712924cb..000000000000
--- a/patches/build-rust-std-rules-BUILD.gn.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-diff --git a/build/rust/std/rules/BUILD.gn b/build/rust/std/rules/BUILD.gn
-index ddf69ad82a76aa314e82550af81a4804998a6706..2b92e98ab0f381454f5e4673398396878f55ccfb 100644
---- a/build/rust/std/rules/BUILD.gn
-+++ b/build/rust/std/rules/BUILD.gn
-@@ -343,7 +343,7 @@ cargo_crate("compiler_builtins") {
-   output_dir =
-       "$root_out_dir/local_rustc_sysroot/lib/rustlib/$rust_abi_target/lib/"
- 
--  if (current_cpu == "arm64") {
-+  if (current_cpu == "arm64" && !is_android && !is_ios) {
-     build_script_outputs = [ "outlined_atomics.rs" ]
-   }
- }
diff --git a/third_party/rust/lock_api/v0_4/0001-remove-autocfg-probe.diff b/third_party/rust/lock_api/v0_4/0001-remove-autocfg-probe.diff
new file mode 100644
index 000000000000..fdd4f085edef
--- /dev/null
+++ b/third_party/rust/lock_api/v0_4/0001-remove-autocfg-probe.diff
@@ -0,0 +1,22 @@
+From 4217a857d39dded221b63239893c200251ceaffe Mon Sep 17 00:00:00 2001
+From: bridiver <34129+bridiver@users.noreply.github.com>
+Date: Wed, 23 Aug 2023 07:34:18 -0700
+Subject: [PATCH] patch build.rs
+
+---
+ third_party/rust/lock_api/v0_4/crate/build.rs | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/third_party/rust/lock_api/v0_4/crate/build.rs b/third_party/rust/lock_api/v0_4/crate/build.rs
+index 886a3454c3..f52f18e7b3 100644
+--- a/third_party/rust/lock_api/v0_4/crate/build.rs
++++ b/third_party/rust/lock_api/v0_4/crate/build.rs
+@@ -1,4 +1,5 @@
+ fn main() {
++    return; #[allow(unused)]
+     let cfg = autocfg::new();
+ 
+     if cfg.probe_rustc_version(1, 61) {
+-- 
+2.34.1
+
diff --git a/third_party/rust/lock_api/v0_4/BUILD.gn b/third_party/rust/lock_api/v0_4/BUILD.gn
index 1f1b68fd39f6..23c07266ae08 100644
--- a/third_party/rust/lock_api/v0_4/BUILD.gn
+++ b/third_party/rust/lock_api/v0_4/BUILD.gn
@@ -37,4 +37,8 @@ cargo_crate("lib") {
   build_deps = [ "//third_party/rust/autocfg/v1:buildrs_support" ]
   build_root = "crate/build.rs"
   build_sources = [ "crate/build.rs" ]
+  rustflags = [
+    "--cfg",
+    "has_const_fn_trait_bound",
+  ]
 }
diff --git a/third_party/rust/lock_api/v0_4/crate/build.rs b/third_party/rust/lock_api/v0_4/crate/build.rs
index 886a3454c304..f52f18e7b33e 100644
--- a/third_party/rust/lock_api/v0_4/crate/build.rs
+++ b/third_party/rust/lock_api/v0_4/crate/build.rs
@@ -1,4 +1,5 @@
 fn main() {
+    return; #[allow(unused)]
     let cfg = autocfg::new();
 
     if cfg.probe_rustc_version(1, 61) {
diff --git a/third_party/rust/num_bigint/v0_2/BUILD.gn b/third_party/rust/num_bigint/v0_2/BUILD.gn
index 4313e2cea751..191b64ca3f9b 100644
--- a/third_party/rust/num_bigint/v0_2/BUILD.gn
+++ b/third_party/rust/num_bigint/v0_2/BUILD.gn
@@ -65,4 +65,8 @@ cargo_crate("lib") {
   features = [ "std" ]
   build_root = "crate/build.rs"
   build_sources = [ "crate/build.rs" ]
+  rustflags = [
+    "--cfg",
+    "has_i128",
+  ]
 }
diff --git a/third_party/rust/num_bigint/v0_2/crate/build.rs b/third_party/rust/num_bigint/v0_2/crate/build.rs
index e483c15fd7f6..3ea385c1c4e0 100644
--- a/third_party/rust/num_bigint/v0_2/crate/build.rs
+++ b/third_party/rust/num_bigint/v0_2/crate/build.rs
@@ -3,6 +3,7 @@ extern crate autocfg;
 use std::env;
 
 fn main() {
+    return; #[allow(unused)]
     let ac = autocfg::new();
     if ac.probe_type("i128") {
         println!("cargo:rustc-cfg=has_i128");
diff --git a/third_party/rust/num_bigint/v0_2/patches/0001-remove-autocfg-probe.diff b/third_party/rust/num_bigint/v0_2/patches/0001-remove-autocfg-probe.diff
new file mode 100644
index 000000000000..48c86ec4747c
--- /dev/null
+++ b/third_party/rust/num_bigint/v0_2/patches/0001-remove-autocfg-probe.diff
@@ -0,0 +1,24 @@
+From da7bfb9cee19deccc0dc6dbf0823bbd438d0fa67 Mon Sep 17 00:00:00 2001
+From: bridiver <34129+bridiver@users.noreply.github.com>
+Date: Wed, 23 Aug 2023 09:23:16 -0700
+Subject: [PATCH] remove autocfg probe_type
+
+---
+ third_party/rust/num_bigint/v0_2/crate/build.rs | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/third_party/rust/num_bigint/v0_2/crate/build.rs b/third_party/rust/num_bigint/v0_2/crate/build.rs
+index e483c15fd7..3ea385c1c4 100644
+--- a/third_party/rust/num_bigint/v0_2/crate/build.rs
++++ b/third_party/rust/num_bigint/v0_2/crate/build.rs
+@@ -3,6 +3,7 @@ extern crate autocfg;
+ use std::env;
+ 
+ fn main() {
++    return; #[allow(unused)]
+     let ac = autocfg::new();
+     if ac.probe_type("i128") {
+         println!("cargo:rustc-cfg=has_i128");
+-- 
+2.34.1
+
diff --git a/third_party/rust/num_bigint/v0_3/BUILD.gn b/third_party/rust/num_bigint/v0_3/BUILD.gn
index 15e707bfc57a..70df00c27628 100644
--- a/third_party/rust/num_bigint/v0_3/BUILD.gn
+++ b/third_party/rust/num_bigint/v0_3/BUILD.gn
@@ -82,4 +82,14 @@ cargo_crate("lib") {
   build_root = "crate/build.rs"
   build_sources = [ "crate/build.rs" ]
   build_script_outputs = [ "radix_bases.rs" ]
+  rustflags = [
+    "--cfg",
+    "has_try_from",
+  ]
+  if (current_cpu == "arm64" || current_cpu == "x64") {
+    rustflags += [
+      "--cfg",
+      "u64_digit",
+    ]
+  }
 }
diff --git a/third_party/rust/num_bigint/v0_3/crate/build.rs b/third_party/rust/num_bigint/v0_3/crate/build.rs
index 3daed5e8d336..3405cff8e572 100644
--- a/third_party/rust/num_bigint/v0_3/crate/build.rs
+++ b/third_party/rust/num_bigint/v0_3/crate/build.rs
@@ -5,6 +5,7 @@ use std::io::Write;
 use std::path::Path;
 
 fn main() {
+  /*
     let pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH");
     let u64_digit = pointer_width.as_ref().map(String::as_str) == Ok("64");
     if u64_digit {
@@ -32,6 +33,7 @@ fn main() {
     }
 
     autocfg::rerun_path("build.rs");
+*/
 
     write_radix_bases().unwrap();
 }
diff --git a/third_party/rust/num_bigint/v0_3/patches/0001-remove-autocfg-probe.diff b/third_party/rust/num_bigint/v0_3/patches/0001-remove-autocfg-probe.diff
new file mode 100644
index 000000000000..000622b8f875
--- /dev/null
+++ b/third_party/rust/num_bigint/v0_3/patches/0001-remove-autocfg-probe.diff
@@ -0,0 +1,32 @@
+From 45c741b53bb268f78636c9501db06530b72cc69e Mon Sep 17 00:00:00 2001
+From: bridiver <34129+bridiver@users.noreply.github.com>
+Date: Tue, 22 Aug 2023 16:00:43 -0700
+Subject: [PATCH] temp
+
+---
+ third_party/rust/num_bigint/v0_3/crate/build.rs | 2 --
+ 1 file changed, 2 deletions(-)
+
+diff --git a/third_party/rust/num_bigint/v0_3/crate/build.rs b/third_party/rust/num_bigint/v0_3/crate/build.rs
+index 3405cff8e5..3daed5e8d3 100644
+--- a/third_party/rust/num_bigint/v0_3/crate/build.rs
++++ b/third_party/rust/num_bigint/v0_3/crate/build.rs
+@@ -5,7 +5,6 @@ use std::io::Write;
+ use std::path::Path;
+ 
+ fn main() {
+-  /*
+     let pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH");
+     let u64_digit = pointer_width.as_ref().map(String::as_str) == Ok("64");
+     if u64_digit {
+@@ -33,7 +32,6 @@ fn main() {
+     }
+ 
+     autocfg::rerun_path("build.rs");
+-*/
+ 
+     write_radix_bases().unwrap();
+ }
+-- 
+2.34.1
+
diff --git a/third_party/rust/num_bigint/v0_4/BUILD.gn b/third_party/rust/num_bigint/v0_4/BUILD.gn
index 11434bbea22e..72b47908d8b8 100644
--- a/third_party/rust/num_bigint/v0_4/BUILD.gn
+++ b/third_party/rust/num_bigint/v0_4/BUILD.gn
@@ -84,4 +84,14 @@ cargo_crate("lib") {
   build_root = "crate/build.rs"
   build_sources = [ "crate/build.rs" ]
   build_script_outputs = [ "radix_bases.rs" ]
+  rustflags = [
+    "--cfg",
+    "has_try_from",
+  ]
+  if (current_cpu == "arm64" || current_cpu == "x64") {
+    rustflags += [
+      "--cfg",
+      "u64_digit",
+    ]
+  }
 }
diff --git a/third_party/rust/num_bigint/v0_4/crate/build.rs b/third_party/rust/num_bigint/v0_4/crate/build.rs
index 3daed5e8d336..284c22fe1aea 100644
--- a/third_party/rust/num_bigint/v0_4/crate/build.rs
+++ b/third_party/rust/num_bigint/v0_4/crate/build.rs
@@ -5,6 +5,7 @@ use std::io::Write;
 use std::path::Path;
 
 fn main() {
+  /*
     let pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH");
     let u64_digit = pointer_width.as_ref().map(String::as_str) == Ok("64");
     if u64_digit {
@@ -32,6 +33,7 @@ fn main() {
     }
 
     autocfg::rerun_path("build.rs");
+  */
 
     write_radix_bases().unwrap();
 }
diff --git a/third_party/rust/num_bigint/v0_4/patches/0001-remove-autocfg-probe.diff b/third_party/rust/num_bigint/v0_4/patches/0001-remove-autocfg-probe.diff
new file mode 100644
index 000000000000..3440cb67ba9a
--- /dev/null
+++ b/third_party/rust/num_bigint/v0_4/patches/0001-remove-autocfg-probe.diff
@@ -0,0 +1,32 @@
+From 5913c99a92cc3e77033010b346bf8328465a42f1 Mon Sep 17 00:00:00 2001
+From: bridiver <34129+bridiver@users.noreply.github.com>
+Date: Tue, 22 Aug 2023 16:06:53 -0700
+Subject: [PATCH] temp2
+
+---
+ third_party/rust/num_bigint/v0_4/crate/build.rs | 2 --
+ 1 file changed, 2 deletions(-)
+
+diff --git a/third_party/rust/num_bigint/v0_4/crate/build.rs b/third_party/rust/num_bigint/v0_4/crate/build.rs
+index 284c22fe1a..3daed5e8d3 100644
+--- a/third_party/rust/num_bigint/v0_4/crate/build.rs
++++ b/third_party/rust/num_bigint/v0_4/crate/build.rs
+@@ -5,7 +5,6 @@ use std::io::Write;
+ use std::path::Path;
+ 
+ fn main() {
+-  /*
+     let pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH");
+     let u64_digit = pointer_width.as_ref().map(String::as_str) == Ok("64");
+     if u64_digit {
+@@ -33,7 +32,6 @@ fn main() {
+     }
+ 
+     autocfg::rerun_path("build.rs");
+-  */
+ 
+     write_radix_bases().unwrap();
+ }
+-- 
+2.34.1
+
diff --git a/third_party/rust/num_traits/v0_2/BUILD.gn b/third_party/rust/num_traits/v0_2/BUILD.gn
index 1346510bad3b..5dfe314bc611 100644
--- a/third_party/rust/num_traits/v0_2/BUILD.gn
+++ b/third_party/rust/num_traits/v0_2/BUILD.gn
@@ -58,4 +58,20 @@ cargo_crate("lib") {
   ]
   build_root = "crate/build.rs"
   build_sources = [ "crate/build.rs" ]
+  rustflags = [
+    "--cfg",
+    "has_i128",
+    "--cfg",
+    "has_to_int_unchecked",
+    "--cfg",
+    "has_reverse_bits",
+    "--cfg",
+    "has_leading_trailing_ones",
+    "--cfg",
+    "has_int_assignop_ref",
+    "--cfg",
+    "has_div_euclid",
+    "--cfg",
+    "has_copysign",
+  ]
 }
diff --git a/third_party/rust/num_traits/v0_2/crate/build.rs b/third_party/rust/num_traits/v0_2/crate/build.rs
index c7bf364f1c46..21558be65413 100644
--- a/third_party/rust/num_traits/v0_2/crate/build.rs
+++ b/third_party/rust/num_traits/v0_2/crate/build.rs
@@ -3,6 +3,7 @@ extern crate autocfg;
 use std::env;
 
 fn main() {
+    return; #[allow(unused)]
     let ac = autocfg::new();
 
     // If the "i128" feature is explicity requested, don't bother probing for it.
diff --git a/third_party/rust/num_traits/v0_2/patches/0001-remove-autocfg-probe.diff b/third_party/rust/num_traits/v0_2/patches/0001-remove-autocfg-probe.diff
new file mode 100644
index 000000000000..96f374cb856d
--- /dev/null
+++ b/third_party/rust/num_traits/v0_2/patches/0001-remove-autocfg-probe.diff
@@ -0,0 +1,24 @@
+From 4e24c13a8ddc7599c2c164b2c7d9eaa2d83e2d80 Mon Sep 17 00:00:00 2001
+From: bridiver <34129+bridiver@users.noreply.github.com>
+Date: Wed, 23 Aug 2023 13:14:39 -0700
+Subject: [PATCH] autocfg
+
+---
+ third_party/rust/num_traits/v0_2/crate/build.rs | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/third_party/rust/num_traits/v0_2/crate/build.rs b/third_party/rust/num_traits/v0_2/crate/build.rs
+index c7bf364f1c..21558be654 100644
+--- a/third_party/rust/num_traits/v0_2/crate/build.rs
++++ b/third_party/rust/num_traits/v0_2/crate/build.rs
+@@ -3,6 +3,7 @@ extern crate autocfg;
+ use std::env;
+ 
+ fn main() {
++    return; #[allow(unused)]
+     let ac = autocfg::new();
+ 
+     // If the "i128" feature is explicity requested, don't bother probing for it.
+-- 
+2.34.1
+
diff --git a/third_party/rust/slab/v0_4/crate/build.rs b/third_party/rust/slab/v0_4/crate/build.rs
index b60351aaf2ab..6a56d3491191 100644
--- a/third_party/rust/slab/v0_4/crate/build.rs
+++ b/third_party/rust/slab/v0_4/crate/build.rs
@@ -1,4 +1,5 @@
 fn main() {
+    return; #[allow(unused)]
     let cfg = match autocfg::AutoCfg::new() {
         Ok(cfg) => cfg,
         Err(e) => {
diff --git a/third_party/rust/slab/v0_4/patches/0001-remove-autocfg-probe.diff b/third_party/rust/slab/v0_4/patches/0001-remove-autocfg-probe.diff
new file mode 100644
index 000000000000..5b5b7f2b553b
--- /dev/null
+++ b/third_party/rust/slab/v0_4/patches/0001-remove-autocfg-probe.diff
@@ -0,0 +1,22 @@
+From 5178e6a72e04675d32b19c5dfbe185388550143e Mon Sep 17 00:00:00 2001
+From: bridiver <34129+bridiver@users.noreply.github.com>
+Date: Wed, 23 Aug 2023 09:22:12 -0700
+Subject: [PATCH] skip autocfg probe_type
+
+---
+ third_party/rust/slab/v0_4/crate/build.rs | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/third_party/rust/slab/v0_4/crate/build.rs b/third_party/rust/slab/v0_4/crate/build.rs
+index b60351aaf2..6a56d34911 100644
+--- a/third_party/rust/slab/v0_4/crate/build.rs
++++ b/third_party/rust/slab/v0_4/crate/build.rs
+@@ -1,4 +1,5 @@
+ fn main() {
++    return; #[allow(unused)]
+     let cfg = match autocfg::AutoCfg::new() {
+         Ok(cfg) => cfg,
+         Err(e) => {
+-- 
+2.34.1
+
diff --git a/third_party/rust/third_party.toml b/third_party/rust/third_party.toml
index 08a1802603ff..c5ff17ce95db 100644
--- a/third_party/rust/third_party.toml
+++ b/third_party/rust/third_party.toml
@@ -271,6 +271,16 @@ cargo_manifest_dir =
 rustenv = [ "CARGO_MANIFEST_DIR=$cargo_manifest_dir" ]
 '''
 
+[dependencies.lock_api]
+version = "0.4.9"
+allow-first-party-usage = false
+gn-variables-lib = '''
+rustflags = [
+  "--cfg",
+  "has_const_fn_trait_bound",
+]
+'''
+
 [dependencies.typenum]
 version = "1"
 allow-first-party-usage = false
@@ -289,6 +299,15 @@ rustenv = [
 version = "0.4"
 allow-first-party-usage = false
 build-script-outputs = [ "radix_bases.rs" ]
+gn-variables-lib = '''
+rustflags = [
+  "--cfg",
+  "has_try_from",
+]
+if (current_cpu == "arm64" || current_cpu == "x64") {
+  rustflags += [ "--cfg", "u64_digit" ]
+}
+'''
 
 [dependencies.selectors]
 version = "0.23"