- Issue #17754: Make ctypes.util.find_library() independent of the locale.

Lib/ctypes/util.py

@@ -92,7 +92,7 @@ elif os.name == "posix":
         fdout, ccout = tempfile.mkstemp()
         os.close(fdout)
         cmd = 'if type gcc >/dev/null 2>&1; then CC=gcc; elif type cc >/dev/null 2>&1; then CC=cc;else exit 10; fi;' \
-              '$CC -Wl,-t -o ' + ccout + ' 2>&1 -l' + name
+              'LANG=C LC_ALL=C $CC -Wl,-t -o ' + ccout + ' 2>&1 -l' + name
         try:
             f = os.popen(cmd)
             try:

Misc/NEWS

@@ -10,6 +10,8 @@ What's New in Python 3.3.3?
 Core and Builtins
 -----------------
 
+- Issue #17754: Make ctypes.util.find_library() independent of the locale.
+
 - Issue #17927: Frame objects kept arguments alive if they had been copied into
   a cell, even if the cell was cleared.