On 2026-03-18 09:22, Zack Weinberg wrote:
I don't have a good explanation for this; it seems to me that even
for the longest test programs we have, that construct should never
take more than a few _micro_seconds. Maybe bash implements it in
an inefficient way?
Perhaps PATH is long and 'cat' is late in the PATH?
If Autoconf 2.73 prepends stuff to PATH that 2.72 didn't, that might at
least partly explain the small increase that you observe. It likely
wouldn't explain the larger increase that Ross observes, though.