Use published version of librt (#19945)

Ref mypyc/mypyc#1128

Another step towards making fixed format cache the default one.

Author: ilevkivskyi

mypy-requirements.txt

@@ -4,3 +4,4 @@ typing_extensions>=4.6.0
 mypy_extensions>=1.0.0
 pathspec>=0.9.0
 tomli>=1.1.0; python_version<'3.11'
+librt>=0.1.0

mypy_self_check.ini

@@ -13,3 +13,4 @@ enable_error_code = ignore-without-code,redundant-expr
 enable_incomplete_feature = PreciseTupleTypes
 show_error_code_links = True
 warn_unreachable = True
+fixed_format_cache = True

mypyc/lib-rt/setup.py

@@ -73,8 +73,6 @@ def run(self) -> None:
     # TODO: we need a way to share our preferred C flags and get_extension() logic with
     # mypyc/build.py without code duplication.
     setup(
-        name="mypy-native",
-        version="0.0.1",
         ext_modules=[
             Extension(
                 "native_internal",
@@ -88,5 +86,5 @@ def run(self) -> None:
                 ],
                 include_dirs=["."],
             )
-        ],
+        ]
     )

pyproject.toml

@@ -9,6 +9,7 @@ requires = [
     "mypy_extensions>=1.0.0",
     "pathspec>=0.9.0",
     "tomli>=1.1.0; python_version<'3.11'",
+    "librt>=0.1.0",
     # the following is from build-requirements.txt
     "types-psutil",
     "types-setuptools",

setup.py

@@ -156,8 +156,6 @@ def run(self) -> None:
         log_trace=log_trace,
         # Mypy itself is allowed to use native_internal extension.
         depends_on_native_internal=True,
-        # TODO: temporary, remove this after we publish mypy-native on PyPI.
-        install_native_libs=True,
     )
 
 else:

test-requirements.txt

@@ -22,6 +22,8 @@ identify==2.6.13
     # via pre-commit
 iniconfig==2.1.0
     # via pytest
+librt==0.1.0
+    # via -r mypy-requirements.txt
 lxml==6.0.1 ; python_version < "3.15"
     # via -r test-requirements.in
 mypy-extensions==1.1.0