feat(regenerate): forward PHNT_VERSION and PHNT_MODE from env

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "phnt"
-version = "0.0.29"
+version = "0.0.30"
 license = "MIT"
 authors = ["oberrich <oberrich.llvm@proton.me>"]
 repository = "https://github.com/oberrich/phnt-rs"

README.md

@@ -26,7 +26,7 @@ Crate Overview
   - [Functions][docs.rs/ext/functions]
   - [Macros][docs.rs/ext/macros]
 
-**crate version:** 0.0.29 - unstable api
+**crate version:** 0.0.30 - unstable api
 
 [github.com]:               https://github.com/oberrich/phnt-rs
 [github.com/ci]:            https://github.com/oberrich/phnt-rs/actions/workflows/rust.yml

src/build.rs

@@ -98,16 +98,24 @@ mod regen {
             format!("// Generated at {}", chrono::offset::Local::now()),
             format!("#[cfg(not(target_arch = \"{}\"))]", std::env::consts::ARCH),
             format!("compile_error!(\"These bindings can only be used on `{}` architectures. To generate bindings for your target architecture, consider using the `regenerate` feature.\");", std::env::consts::ARCH),
+            "".into(),
             "use cty;".into(),
          ];
          raw_lines.append(&mut self.raw_lines.clone());
 
-         let clang_args = vec![
-            "-Iwindows.h",
-            "-Iwinnt.h",
-            concat!("-I", env!("CARGO_MANIFEST_DIR"), "\\deps\\phnt-nightly/"),
+         let mut clang_args: Vec<String> = vec![
+            "-Iwindows.h".to_owned(),
+            "-Iwinnt.h".to_owned(),
+            concat!("-I", env!("CARGO_MANIFEST_DIR"), "\\deps\\phnt-nightly/").to_owned(),
          ];
 
+         for name in ["PHNT_VERSION", "PHNT_MODE"] {
+            println!("cargo:rerun-if-changed={}", name);
+            if let Ok(str) = env::var(name) {
+               clang_args.push(format!("-D{}={}", name, str));
+            }
+         }
+
          bindgen::builder()
             .disable_header_comment()
             .header(concat!(env!("CARGO_MANIFEST_DIR"), "/src/ffi/wrapper.h"))