Author: dsahlberg
Date: Fri Oct 22 18:43:24 2021
New Revision: 1894491

URL: http://svn.apache.org/viewvc?rev=1894491&view=rev
Log:
Add a warning regarding the ZLib ASM "optimizations" that are known to be
buggy.

* INSTALL: In "Building the Latest Source under Windows"

Discussed in users@: 
http://mail-archives.apache.org/mod_mbox/subversion-users/202110.mbox/%3C002801d7c705%24db4b5470%2491e1fd50%24%40verocel.pl%3E

Modified:
    subversion/trunk/INSTALL

Modified: subversion/trunk/INSTALL
URL: 
http://svn.apache.org/viewvc/subversion/trunk/INSTALL?rev=1894491&r1=1894490&r2=1894491&view=diff
==============================================================================
--- subversion/trunk/INSTALL (original)
+++ subversion/trunk/INSTALL Fri Oct 22 18:43:24 2021
@@ -1034,6 +1034,12 @@ II.   INSTALLATION
       Note that you'd make sure to define ZLIB_WINAPI in the ZLib config
       header and move the lib-file into the zlib root-directory.
 
+      Please note that you MUST NOT build ZLib with the included assembler
+      optimized code. It is known to be buggy, see for example the discussion
+      https://svn.haxx.se/dev/archive-2013-10/0109.shtml.
+      This means that you must not define ASMV or ASMINF. Note that the VS
+      projects in contrib\visualstudio define these in the Debug configuration.
+
       Apache Serf
 
       ### Section about Apache Serf might be required/useful to add.
@@ -1444,8 +1450,8 @@ IV.   PLATFORM-SPECIFIC ISSUES
           https://www.apache.org/dist/httpd/binaries/win32/#xpbug
 
       And there's an item about this in the Subversion FAQ:
-
-          https://subversion.apache.org/faq.html#windows-xp-server
+ttps://subversion.apache.org/faq.html#windows-xp-server
+          h
 
       The only known workaround for now is to update to Windows XP
       SP1 (or higher).


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