Fix Python interpreter discovery on non-glibc hosts

When glibc cannot be found, simply return 0 for the version numbers and
mark the interpreter as being incompatible with manylinux

Author: dead10ck

crates/uv-python/python/get_interpreter_info.py

@@ -463,21 +463,19 @@ def get_operating_system_and_architecture():
 
         musl_version = _get_musl_version(sys.executable)
         glibc_version = _get_glibc_version()
+
         if musl_version:
             operating_system = {
                 "name": "musllinux",
                 "major": musl_version[0],
                 "minor": musl_version[1],
             }
-        elif glibc_version != (-1, -1):
+        else:
             operating_system = {
                 "name": "manylinux",
                 "major": glibc_version[0],
                 "minor": glibc_version[1],
             }
-        else:
-            print(json.dumps({"result": "error", "kind": "libc_not_found"}))
-            sys.exit(0)
     elif operating_system == "win":
         operating_system = {
             "name": "windows",
@@ -542,16 +540,20 @@ def main() -> None:
         "python_version": ".".join(platform.python_version_tuple()[:2]),
         "sys_platform": sys.platform,
     }
+
     os_and_arch = get_operating_system_and_architecture()
 
-    manylinux_compatible = True
+    manylinux_compatible = False
+
     if os_and_arch["os"]["name"] == "manylinux":
         # noinspection PyProtectedMember
         from .packaging._manylinux import _get_glibc_version, _is_compatible
 
         manylinux_compatible = _is_compatible(
             arch=os_and_arch["arch"], version=_get_glibc_version()
         )
+    elif os_and_arch["os"]["name"] == "musllinux":
+        manylinux_compatible = True
 
     interpreter_info = {
         "result": "success",

crates/uv-python/python/packaging/_manylinux.py

@@ -173,7 +173,7 @@ def _parse_glibc_version(version_str: str) -> tuple[int, int]:
 def _get_glibc_version() -> tuple[int, int]:
     version_str = _glibc_version_string()
     if version_str is None:
-        return (-1, -1)
+        return (0, 0)
     return _parse_glibc_version(version_str)