windows: add a --build-mode argument

It currently does nothing meaningful. Our goal is to
add support for building a normal Python distribution, shared
library and all.

Author: indygreg

build-windows.py

@@ -32,7 +32,9 @@ def bootstrap():
     os.environ["PYBUILD_BOOTSTRAPPED"] = "1"
     os.environ["PATH"] = "%s;%s" % (str(VENV / "bin"), os.environ["PATH"])
     os.environ["PYTHONPATH"] = str(ROOT)
-    subprocess.run([str(PYTHON), __file__], check=True)
+    args = [str(PYTHON), __file__]
+    args.extend(sys.argv[1:])
+    subprocess.run(args, check=True)
 
 
 def run():
@@ -46,9 +48,10 @@ def run():
 
     arch = "x86" if os.environ.get("Platform") == "x86" else "amd64"
 
-    subprocess.run(
-        [str(PYTHON), "build.py"], cwd=str(WINDOWS_DIR), env=env, check=True, bufsize=0
-    )
+    args = [str(PYTHON), "build.py"]
+    args.extend(sys.argv[1:])
+
+    subprocess.run(args, cwd=str(WINDOWS_DIR), env=env, check=True, bufsize=0)
 
     source_path = BUILD / ("cpython-windows-%s.tar" % arch)
 

cpython-windows/build.py

@@ -3,6 +3,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
+import argparse
 import concurrent.futures
 import json
 import os
@@ -1292,7 +1293,7 @@ def find_additional_dependencies(project: pathlib.Path):
     return res
 
 
-def build_cpython(arch: str, pgo=False):
+def build_cpython(arch: str, pgo=False, build_mode="static"):
     msbuild = find_msbuild()
     log("found MSBuild at %s" % msbuild)
 
@@ -1525,6 +1526,16 @@ def fetch_strawberry_perl() -> pathlib.Path:
 def main():
     BUILD.mkdir(exist_ok=True)
 
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "--build-mode",
+        choices={"static"},
+        default="static",
+        help="How to compile Python",
+    )
+
+    args = parser.parse_args()
+
     log_path = BUILD / "build.log"
 
     with log_path.open("wb") as log_fh:
@@ -1540,7 +1551,7 @@ def main():
             build_openssl(perl_path, arch)
 
         LOG_PREFIX[0] = "cpython"
-        build_cpython(arch)
+        build_cpython(arch, build_mode=args.build_mode)
 
 
 if __name__ == "__main__":