When doing the quick test to see whether large files are supported,
catch IOError as well as OverflowError. I found that on Tru64 Unix
this was raised; probably because the OS (or libc) doesn't support
large files but the architecture is 64 bits!
diff --git a/Lib/test/test_largefile.py b/Lib/test/test_largefile.py
index 58de293..1b404b6 100644
--- a/Lib/test/test_largefile.py
+++ b/Lib/test/test_largefile.py
@@ -16,7 +16,7 @@
try:
# 2**31 == 2147483648
f.seek(2147483649L)
-except OverflowError:
+except (IOError, OverflowError):
f.close()
os.unlink(test_support.TESTFN)
raise test_support.TestSkipped, \