fix(python): fully working and portable python build

src-pybind/fourdst/__init__.py

@@ -19,4 +19,46 @@ from importlib.metadata import version, PackageNotFoundError
 try:
     __version__ = version("fourdst")
 except PackageNotFoundError:
-    __version__ = "0.0.0+unknown"
+    __version__ = "0.0.0+unknown"
+
+import os
+from pathlib import Path
+from typing import List
+
+_PACKAGE_DIR = Path(__file__).resolve().parent
+
+def get_lib_dirs() -> List[str]:
+    return [
+        os.fspath(_PACKAGE_DIR / "lib"),
+        os.fspath(_PACKAGE_DIR / "lib" / "vendor"),
+    ]
+
+def get_include_dirs() -> List[str]:
+    return [
+        os.fspath(_PACKAGE_DIR / "include"),
+        os.fspath(_PACKAGE_DIR / "include" / "fourdst" / "vendor"),
+    ]
+
+def get_rpath_flags() -> List[str]:
+    return ["-Wl,-rpath," + os.fspath(_PACKAGE_DIR / "lib")]
+
+def get_lib_flags() -> List[str]:
+    flags = ["-L" + d for d in get_lib_dirs()]
+    flags += ["-lcomposition", "-llogging", "-lconst", "-lreflect_cpp"]
+    flags += get_rpath_flags()
+    return flags
+
+def get_include_flags() -> List[str]:
+    return ["-I" + d for d in get_include_dirs()]
+
+def get_compiler_flags() -> List[str]:
+    return get_include_flags() + get_lib_flags()
+
+def get_compiler_flags_formatted() -> int:
+    flags = get_compiler_flags()
+    print(' '.join(flags))
+    return 0
+
+def print_fourdst_version() -> int:
+    print("fourdst version: " + __version__)
+    return 0