- do not edit source files in build.rs

build.rs

@@ -74,46 +74,6 @@ impl Error {
     }
 }
 
-fn restore_importexport(libcziapi_inc: &Path) -> Result<(), Box<dyn std::error::Error>> {
-    let header = libcziapi_inc.join("importexport.h");
-    let relative = header.strip_prefix("libczi").unwrap_or(&header);
-    let status = std::process::Command::new("git")
-        .args(["checkout", "HEAD", "--", relative.to_str().unwrap()])
-        .current_dir("libczi")
-        .status()?;
-    if !status.success() {
-        return Err(Error::msg("failed to restore importexport.h"));
-    }
-    Ok(())
-}
-
-struct ImportExportGuard<'a> {
-    libcziapi_inc: &'a Path,
-}
-
-impl<'a> Drop for ImportExportGuard<'a> {
-    fn drop(&mut self) {
-        if let Err(e) = restore_importexport(self.libcziapi_inc) {
-            eprintln!("warning: failed to restore importexport.h: {e}");
-        }
-    }
-}
-
-fn patch_importexport(
-    libcziapi_inc: &Path,
-) -> Result<ImportExportGuard<'_>, Box<dyn std::error::Error>> {
-    let path = libcziapi_inc.join("importexport.h");
-    let original = std::fs::read_to_string(&path)?;
-    let patched = original.replace(
-        "#define EXTERNALLIBCZIAPI_API(_returntype_) _returntype_",
-        "#define EXTERNALLIBCZIAPI_API(_returntype_) extern \"C\" _returntype_",
-    );
-    if patched != original {
-        std::fs::write(&path, &patched)?;
-    }
-    Ok(ImportExportGuard { libcziapi_inc })
-}
-
 fn fix_xwin_lib_case() -> Result<(), Box<dyn std::error::Error>> {
     let toolchain_key = format!(
         "CMAKE_TOOLCHAIN_FILE_{}",
@@ -174,6 +134,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
         let mut cmake_config = cmake::Config::new(&libczi_dir);
         cmake_config
             .cxxflag("-fms-extensions")
+            .cxxflag("-DLIBCZIAPI_EXPORTS_SHARED")
             .define("ADDITIONAL_LIBS_REQUIRED_FOR_ATOMIC", "")
             .define("LIBCZI_BUILD_UNITTESTS", "OFF")
             .define("LIBCZI_BUILD_CZICMD", "OFF")
@@ -226,13 +187,13 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
             cmake_config.build_target("libCZIAPIStatic");
         }
 
-        let _importexport_guard = patch_importexport(&libcziapi_inc)?;
         let dst = cmake_config.build();
 
         let bindings = bindgen::Builder::default()
             .merge_extern_blocks(true)
             .clang_args([
                 "-fms-extensions",
+                "-DLIBCZIAPI_EXPORTS_SHARED",
                 "-x",
                 "c++",
                 "-std=c++14",