https://github.com/python/cpython/commit/11a5fc82381308f0b6060b8c06af89fd197516e1
commit: 11a5fc82381308f0b6060b8c06af89fd197516e1
branch: main
author: Hood Chatham <[email protected]>
committer: freakboy3742 <[email protected]>
date: 2025-09-01T06:50:29+08:00
summary:
gh-138130: Fix return value of libc_ver() on Emscripten (#138132)
Emscripten's libc is a hybrid of musl and llvm libc; but it reports that it is
"glibc". This modifies the return value of `platform.libc_ver()` to return
something that is Emscripten-specific.
files:
M Lib/platform.py
M Lib/test/test_platform.py
diff --git a/Lib/platform.py b/Lib/platform.py
index da15bb4717bb96..762f5d06099cf0 100644
--- a/Lib/platform.py
+++ b/Lib/platform.py
@@ -173,6 +173,11 @@ def libc_ver(executable=None, lib='', version='',
chunksize=16384):
"""
if not executable:
+ if sys.platform == "emscripten":
+ # Emscripten's os.confstr reports that it is glibc, so special case
+ # it.
+ ver = ".".join(str(x) for x in
sys._emscripten_info.emscripten_version)
+ return ("emscripten", ver)
try:
ver = os.confstr('CS_GNU_LIBC_VERSION')
# parse 'glibc 2.28' as ('glibc', '2.28')
diff --git a/Lib/test/test_platform.py b/Lib/test/test_platform.py
index 2e26134bae8323..73d4f3cbdb689d 100644
--- a/Lib/test/test_platform.py
+++ b/Lib/test/test_platform.py
@@ -532,8 +532,10 @@ def test_ios_ver(self):
self.assertEqual(override.model, "Whiz")
self.assertTrue(override.is_simulator)
- @unittest.skipIf(support.is_emscripten, "Does not apply to Emscripten")
def test_libc_ver(self):
+ if support.is_emscripten:
+ assert platform.libc_ver() == ("emscripten", "4.0.12")
+ return
# check that libc_ver(executable) doesn't raise an exception
if os.path.isdir(sys.executable) and \
os.path.exists(sys.executable+'.exe'):
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