[Zlib-devel] ABI change in zlib 1.2.4

[Xin LI]

Hi,

I have ran into a problem that some third party software blindly cast
gzFile into z_stream_s * (specifically, libxml2).  This used to work
but is now broken with zlib 1.2.4 since z_stream_s is located at the
bottom of the struct gzstate.

I am thinking about making a bug-for-bug change for FreeBSD as
attached.  Will this look bad for anyone?  Can we make it in next zlib
release?

Cheers,
-- 
Xin LI <delphij at delphij.net> http://www.delphij.net
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