[http://sourceforge.net/p/ufoai/bugs/436 Item 436] imported from sourceforge.net tracker on 2013-01-28 18:21:29

When compiled with --enable-release, any saved game can't be loaded and it tells this error. Without --enable-release all works fine.
x86_64 Linux, svn version 4746
===== Comments Ported from Sourceforge =====

====== tlh2000 (2006-11-16 07:22:53) ======

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maybe some of the optimiźation flags are incompatible with zlib
====== tritol (2006-11-16 19:57:30) ======

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It seems src/qcommon/unzip.c hates any optimization flags (-O2 too). Why system zlib is not used for this task? There shouldn't be compile trouble with system zlib.
====== cassiterite (2006-11-17 09:47:58) ======

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unzip.c relies on the zlib library for all uncompression tasks. It is a copy of minizip's unzip.c (which is now bundled with zlib releases as a contrib project).

If unzip.c hates optimization flags then this is probably still a direct result of an issue with zlib.

I wouldn't have expected zlib to have these sorts of issues though, maybe it is worth chasing up with the zlib guys?
====== tritol (2006-11-17 13:13:21) ======

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I dig little more and unzip.c is inocent. Load game calls zlib directly (function uncompress) and it returns Z_BUF_ERROR. I modify the code a little and now it work just fine. Patch included.
====== cassiterite (2006-11-17 16:26:18) ======

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Thanks for the patch! It is now applied against trunk and stable branches.

I will admit I was the author of this buggy code, and didnt notice the error even after looking through it again when I read your bug report. So thanks again for picking it up and fixing it.