chore: Release bdwgc-alloc version 0.6.8

Bumps [vendor/bdwgc](https://github.com/ivmai/bdwgc) from `54c7a2d` to
`98e4d0a`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="98e4d0a382"><code>98e4d0a</code></a>
GH Actions: Update zig to v0.12.0-dev.2076</li>
<li><a
href="9566d70b34"><code>9566d70</code></a>
Update zig script to v0.12.0-dev.2015</li>
<li><a
href="58439a1896"><code>58439a1</code></a>
Update AUTHORS file (add David Rubin)</li>
<li><a
href="c535d0fb0e"><code>c535d0f</code></a>
Enforce minimum zig version in build script</li>
<li><a
href="dedf2e4a0a"><code>dedf2e4</code></a>
Revert &quot;GH Actions: Increase cmake build timeout to 15m&quot;</li>
<li>See full diff in <a
href="54c7a2dfe0...98e4d0a382">compare
view</a></li>
</ul>
</details>
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.cspell.json

@@ -3,6 +3,7 @@
     "autogen",
     "autotools",
     "bdwgc",
+    "canonicalize",
     "cflag",
     "dealloc",
     "finalizer",

.github/mergify.yml

@@ -1,11 +0,0 @@
-pull_request_rules:
-  - name: dependabot
-    conditions:
-      - author=dependabot[bot]
-    actions:
-      queue:
-        name: default
-        method: squash
-queue_rules:
-  - name: default
-    conditions: []

.github/workflows/dependabot.yaml

@@ -0,0 +1,13 @@
+name: dependabot
+on: pull_request
+permissions:
+  contents: write
+  pull-requests: write
+jobs:
+  merge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - run: gh pr merge --auto --squash ${{ github.event.pull_request.html_url }}
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "bdwgc-alloc"
 description = "impl GlobalAlloc for bdwgc"
-version = "0.6.7"
+version = "0.6.8"
 authors = [
   "swgillespie <sean.william.g@gmail.com>",
   "Yota Toyama <raviqqe@gmail.com>",

build.rs

@@ -23,7 +23,8 @@ fn main() {
 
     let dst = autotools::Config::new(LIB_GC_DIR)
         .cflag(format!(
-            "-I{} -L/lib/x86_64-linux-gnu -lpthread -fPIC -D POINTER_MASK=0x7",
+            // spell-checker: disable-next-line
+            "-I{} -L/lib/x86_64-linux-gnu -lpthread -fPIC",
             dst.join("include").display()
         ))
         .build();
@@ -59,10 +60,7 @@ fn main() {
     let dst = Config::new(LIB_GC_DIR)
         .profile("Release")
         .define("BUILD_SHARED_LIBS", "FALSE")
-        .cflag(format!(
+        .cflag(format!("-I{}", libatomic_include_path))
-            "-I{} -DPOINTER_MASK=0x7",
-            libatomic_include_path, foo
-        ))
         .build();
 
     println!(

rust-toolchain

@@ -1 +0,0 @@
-stable

rust-toolchain.toml

@@ -0,0 +1,3 @@
+[toolchain]
+channel = "stable"
+components = ["clippy", "rustfmt", "rust-analyzer", "rust-src"]

src/lib.rs

@@ -25,7 +25,6 @@ extern "C" {
     fn GC_get_stack_base(stack_base: *mut GcStackBase) -> c_int;
     fn GC_init();
     fn GC_malloc(size: size_t) -> *mut c_void;
-    fn GC_memalign(align: size_t, size: size_t) -> *mut c_void;
     fn GC_realloc(ptr: *mut c_void, size: size_t) -> *mut c_void;
     fn GC_register_my_thread(stack_base: *const GcStackBase) -> c_int;
     fn GC_set_stackbottom(thread: *const c_void, stack_bottom: *const GcStackBase);
@@ -127,7 +126,7 @@ impl Allocator {
 
 unsafe impl GlobalAlloc for Allocator {
     unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
-        GC_memalign(layout.align(), layout.size()) as *mut u8
+        GC_malloc(layout.size()) as *mut u8
     }
 
     unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) {