Fixed Windows build, cleaned up messages during build, using SCM version numbering, added ruff.

setup.py

@@ -1,28 +1,24 @@
-"""Setup script for pyaegis - builds CFFI extension linking to libaegis.a"""
+"""Setup script for pyaegis - builds CFFI extension with libaegis C library."""
 
+import os
+import sys
 from pathlib import Path
 
 from cffi import FFI
 from setuptools import setup
 
+# Locate the static library (built by build_backend.py before this runs)
+lib_name = "aegis.lib" if sys.platform == "win32" else "libaegis.a"
+libaegis_static = Path("libaegis/zig-out/lib") / lib_name
+if not libaegis_static.exists():
+    raise RuntimeError(f"libaegis static library not found at {libaegis_static}")
+libaegis_static = str(libaegis_static.resolve())
 
-def find_libaegis():
-    """Locate libaegis.a - check common locations."""
-    libaegis_paths = [
-        Path("libaegis/zig-out/lib/libaegis.a"),  # Zig build output (repo build)
-        Path("libaegis/build/libaegis.a"),  # CMake build output (repo build)
-        Path("/usr/local/lib/libaegis.a"),  # System install
-        Path("/usr/lib/libaegis.a"),  # System install
-    ]
-
-    for path in libaegis_paths:
-        if path.exists():
-            print(f"Found libaegis.a at: {path.resolve()}")
-            return str(path.resolve())
-
-    # Return None instead of raising - will be caught during build
-    return None
-
+# Include directory for headers
+libaegis_include = Path("libaegis/src/include")
+if not libaegis_include.exists():
+    raise RuntimeError(f"libaegis include directory not found at {libaegis_include}")
+include_dirs = [str(libaegis_include)]
 
 # Read the CDEF header
 cdef_path = Path(__file__).parent / "pyaegis" / "aegis_cdef.h"
@@ -32,15 +28,6 @@ cdef_content = cdef_path.read_text(encoding="utf-8")
 ffibuilder = FFI()
 ffibuilder.cdef(cdef_content)
 
-# Include directory for headers
-include_dirs = []
-libaegis_include = Path("libaegis/src/include")
-if libaegis_include.exists():
-    include_dirs.append(str(libaegis_include.resolve()))
-
-# Try to find libaegis.a, but don't fail if not found (build backend will build it)
-libaegis_static = find_libaegis()
-
 # Set the source
 ffibuilder.set_source(
     "pyaegis._aegis",  # module name
@@ -54,7 +41,7 @@ ffibuilder.set_source(
     #include "aegis256x4.h"
     """,
     include_dirs=include_dirs,
-    extra_objects=[libaegis_static] if libaegis_static else [],
+    extra_objects=[libaegis_static],
 )
 
 if __name__ == "__main__":