wip: add nginx-src crate with vendored nginx sources

.github/workflows/ci.yaml

@@ -34,6 +34,8 @@ jobs:
     steps:
       - name: checkout source
         uses: actions/checkout@v4
+        with:
+            submodules: true
       - name: set up cargo cache
         uses: actions/cache@v4
         continue-on-error: false
@@ -89,6 +91,8 @@ jobs:
     steps:
       - name: checkout source
         uses: actions/checkout@v4
+        with:
+            submodules: true
       - name: set up cargo cache
         uses: actions/cache@v4
         continue-on-error: false
@@ -123,6 +127,8 @@ jobs:
       - name: install command line dependencies
         run: brew install make gnupg
       - uses: actions/checkout@v4
+        with:
+            submodules: true
       - uses: dtolnay/rust-toolchain@stable
       - name: set up cargo cache
         uses: actions/cache@v4

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "nginx-src/nginx"]
+	path = nginx-src/nginx
+	url = https://github.com/nginx/nginx.git
+	branch = stable-1.28

Cargo.toml

@@ -1,5 +1,6 @@
 [workspace]
 members = [
+    "nginx-src",
     "nginx-sys",
     "examples",
 ]
@@ -45,4 +46,4 @@ vendored = ["nginx-sys/vendored"]
 maintenance = { status = "experimental" }
 
 [dev-dependencies]
-target-triple = "0.1.2"
+tempfile = { version = "3.20.0", default-features = false }