Upgrading Cygwin - postinstall difficulties?

Andrew DeFaria Andrew@DeFaria.com
Tue Sep 16 15:45:00 GMT 2003

Recently updating a Cygiwn 1.3.20 -> 1.5.3 I noticed something that 
concerns me. I think this problem is just a general problem and not sure 
what is "right" in this situation.

The postinstall scripts for 1.5.3 rely on executing commands that might 
have dependencies on the cygwin1.dll that has not been installed yet! If 
you are installing and cygwin1.dll is loaded then setup will not be able 
to put the new cygwin1.dll in place. Instead it puts it as 
cygwin1.dll.new and arranges for it to be put into place next reboot. 
However this does not stop the postinstall scripts from running. When a 
postinstall script runs it may execute say grep, but the new grep makes 
calls to a new or renamed function expecting to find it in the new 
cygwin1.dll. This fails and a dialog box is put up.

Now the situation is understandable. The question is: Did the 
postinstall script accomplish what it needed? After I reboot can I be 
assured that the "failed" postinstall script did enough of what it 
needed to do? Or should I re-execute (all) postinstall scripts?
Obligatory witty line: Mental Floss prevents Moral Decay.

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