Work on slang module compilation

setup.py

@@ -639,9 +639,10 @@ def slang_env(args: Options) -> Env:
         if x.startswith('-std='):
             x = '-std=c++20'
         cflags.append(x)
+    cflags[:0] = pkg_config('slang-compiler', '--cflags-only-I')
     pylib = get_python_flags(args, cflags)
     ans.cflags = cflags
-    ans.ldflags = pylib + ans.ldflags
+    ans.ldflags = pylib + ans.ldflags + pkg_config('slang-compiler', '--libs')
     return ans
 
 

shaders/compiler.cpp

@@ -6,7 +6,17 @@
  */
 
 #include <Python.h>
+#if __has_include("shader-slang/slang.h")
+#include <shader-slang/slang.h>
+#include <shader-slang/slang-com-ptr.h>
+#include <shader-slang/slang-com-helper.h>
+#else
+#include <slang.h>
+#include <slang-com-ptr.h>
+#include <slang-com-helper.h>
+#endif
 
+using namespace slang;
 
 static char doc[] = "Compile shaders";
 static PyMethodDef methods[] = {