From eeb662bf89e9ffdb3e6fc40eb30d0b53e0b4bece Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= Date: Sat, 27 Jan 2024 15:28:34 +0100 Subject: [PATCH] fix: add `libc.so` fallback for musl systems to the ctypes impl Add a fallback to `libc.so` library name to fix loading the ctypes implementation on musl systems. On musl, `find_library("c")` does not work (the problem has been reported to CPython in 2014, and has not been resolved yet), causing the module to fail on `assert libcname`. Instead, add a fallback to using `libc.so` and let ctypes raise an exception if such a library does not exist. --- psycopg/psycopg/pq/_pq_ctypes.py | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/psycopg/psycopg/pq/_pq_ctypes.py b/psycopg/psycopg/pq/_pq_ctypes.py index 9d4dd181..3ecff080 100644 --- a/psycopg/psycopg/pq/_pq_ctypes.py +++ b/psycopg/psycopg/pq/_pq_ctypes.py @@ -28,8 +28,8 @@ class FILE(Structure): FILE_ptr = POINTER(FILE) if sys.platform == "linux": - libcname = ctypes.util.find_library("c") - assert libcname + # find_library("c") does not work on musl, fall back to libc.so instead + libcname = ctypes.util.find_library("c") or "libc.so" libc = ctypes.cdll.LoadLibrary(libcname) fdopen = libc.fdopen -- 2.43.0