fixes

interfaces/Crafter.Build-Clang.cppm

@@ -115,6 +115,14 @@ export namespace Crafter {
         std::vector<fs::path> cuda;
         std::vector<Configuration*> dependencies;
         std::vector<fs::path> files;
+        // Build-time-only source files this configuration exposes to its own
+        // and its consumers' shader compiles as glslang #include search
+        // paths. Each entry's parent directory (or the entry itself, if it's
+        // a directory) is added to the includer for every shader compiled in
+        // this configuration and in any configuration that transitively
+        // depends on it. Files are NOT copied — they're read in place from
+        // the dep's source tree, like C++ -I include dirs.
+        std::vector<fs::path> buildFiles;
         std::vector<Define> defines;
         std::vector<Shader> shaders;
         std::vector<ExternalDependency> externalDependencies;

interfaces/Crafter.Build-Shader.cppm

@@ -48,6 +48,6 @@ namespace Crafter {
         ShaderType type;
         CRAFTER_API Shader(fs::path&& path, std::string&& entrypoint, ShaderType type);
         CRAFTER_API bool Check(const fs::path& outputDir) const;
-        CRAFTER_API std::string Compile(const fs::path& outputDir) const;
+        CRAFTER_API std::string Compile(const fs::path& outputDir, std::span<const fs::path> includeDirs) const;
     };
 }