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platform: implement path_has_root() on OS/2

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OS/2 has the same problem as Windows. '/path/to/f' is not treated as an
absolute path.

Especially, DESTDIR is always appended to the build dir.
This commit is contained in:
KO Myung-Hun
2026-07-05 18:49:14 +09:00
committed by Paolo Bonzini
parent f81fdea2ac
commit 89670f9c95
1 changed files with 15 additions and 13 deletions
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28
mesonbuild/utils/platform.py
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@@ -76,18 +76,6 @@ if sys.platform == 'win32':
msvcrt.locking(self.lockfile.fileno(), msvcrt.LK_UNLCK, 1)
self.lockfile.close()
# os.path.isabs changed in Python 3.13 (wtf) and now excludes Windows
# path with a root component but no drive. However, checking
# whether something is from outside the source tree, or is installed
# outside the prefix fails this new test.
def path_has_root(path: str) -> bool:
# Check for root-relative paths (and also UNC paths, which is okay);
# unnecessary on Python pre-3.13, but not a problem to do it anyway
if path and path[0] in '/\\':
return True
# Check for paths including a drive
return os.path.isabs(path)
else:
import fcntl
@@ -128,5 +116,19 @@ else:
fcntl.flock(self.lockfile, fcntl.LOCK_UN)
self.lockfile.close()
if sys.platform in {'win32', 'os2knix'}:
# os.path.isabs changed in Python 3.13 (wtf) and now excludes Windows
# and OS/2 path with a root component but no drive. However, checking
# whether something is from outside the source tree, or is installed
# outside the prefix fails this new test.
def path_has_root(path: str) -> bool:
# Check for root-relative paths (and also UNC paths, which is okay);
# unnecessary on Python pre-3.13, but not a problem to do it anyway
if path and path[0] in '/\\':
return True
# Check for paths including a drive
return os.path.isabs(path)
else:
# on POSIX systems don't go through pathlib as it's slower
path_has_root = os.path.isabs
path_has_root = os.path.isabs # type: ignore[assignment]