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[libpng15] In projects/vstudio, combined readme.txt and WARNING into README.txt
This commit is contained in:
Glenn Randers-Pehrson
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c583ec1579
5
ANNOUNCE
5
ANNOUNCE
@ -1,5 +1,5 @@
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Libpng 1.5.27beta01 - December 18, 2015
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Libpng 1.5.27beta01 - December 29, 2015
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This is not intended to be a public release. It will be replaced
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within a few weeks by a public version or by another test version.
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@ -26,7 +26,7 @@ Other information:
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Changes since the last public release (1.5.26):
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version 1.5.27beta01 [December 18, 2015]
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version 1.5.27beta01 [December 29, 2015]
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Removed LE/BE dependencies in pngvalid, to 'fix' the current problem
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in the BigEndian tests by not testing it, making the BE code the same
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as the LE version.
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@ -44,6 +44,7 @@ version 1.5.27beta01 [December 18, 2015]
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David Drysdale as a result of reports from UBSAN in clang 3.8).
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This changes pngvalid to use BE random numbers; this used to produce
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errors but these should not be fixed as a result of the previous changes.
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In projects/vstudio, combined readme.txt and WARNING into README.txt
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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3
CHANGES
3
CHANGES
@ -4454,7 +4454,7 @@ version 1.5.26rc01 [December 14, 2015]
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version 1.5.26 [December 17, 2015]
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No changes.
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version 1.5.27beta01 [December 18, 2015]
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version 1.5.27beta01 [December 29, 2015]
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Removed LE/BE dependencies in pngvalid, to 'fix' the current problem
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in the BigEndian tests by not testing it, making the BE code the same
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as the LE version.
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@ -4472,6 +4472,7 @@ version 1.5.27beta01 [December 18, 2015]
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David Drysdale as a result of reports from UBSAN in clang 3.8).
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This changes pngvalid to use BE random numbers; this used to produce
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errors but these should not be fixed as a result of the previous changes.
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In projects/vstudio, combined readme.txt and WARNING into README.txt
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Send comments/corrections/commendations to png-mng-implement at lists.sf.net
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(subscription required; visit
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@ -1,9 +1,9 @@
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VisualStudio instructions
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libpng version 1.5.27beta01 - December 18, 2015
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libpng version 1.5.27beta01 - December 29, 2015
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Copyright (c) 1998-2010 Glenn Randers-Pehrson
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Copyright (c) 2010,2013,2016 Glenn Randers-Pehrson
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This code is released under the libpng license.
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For conditions of distribution and use, see the disclaimer
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@ -13,14 +13,6 @@ This directory contains support for building libpng under MicroSoft
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VisualStudio 2010. It may also work under later versions of VisualStudio.
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You should be familiar with VisualStudio before using this directory.
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WARNING
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=======
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Libpng 1.5 erroneously uses /MD when building debug DLL versions of libpng.
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It should use /MDd - you can change this under properties\C/C++\Code
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Generation\Runtime Library if you need to use the debug runtime for debug
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builds. This will be changed in libpng 1.6 but is currently retained for
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compatibility with older libpng 1.5 releases.
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Initial preparations
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====================
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You must enter some information in zlib.props before attempting to build
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@ -41,21 +33,22 @@ optimization level (e.g. /Od.)
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Linking your application
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========================
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Normally you should link against the 'release' configuration. This builds a
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DLL for libpng 1.5 with the default runtime options used by Visual Studio
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2010. In particular the runtime library is the "MultiThreaded DLL" version.
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DLL for libpng with the default runtime options used by Visual Studio 2010.
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In particular the runtime library is the "MultiThreaded DLL" version.
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If you use Visual Studio defaults to build your application you will have no
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problems.
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If you don't use the Visual Studio defaults your application must still be built
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with the default runtime option (/MD). If, for some reason, it is not then your
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application will crash inside libpng15.dll as soon as libpng tries to read
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from a file handle you pass in.
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If you don't use the Visual Studio defaults your application must still be
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built with the default runtime option (/MD). If, for some reason, it is not
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then your application will crash inside libpng15.dll as soon as libpng
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tries to read from a file handle you pass in.
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If you do not want to use the DLL, for example for a very small application,
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the 'release library' configuration may be more appropriate. This is built
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with a non-standard runtime library - the "MultiThreaded" version. When you
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build your application it must be compiled with this option (/MT), otherwise
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it will not build (if you are lucky) or crash (if you are not.)
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it will not build (if you are lucky) or crash (if you are not.) See the
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WARNING file that is distributed along with this readme.txt.
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Stop reading here
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=================
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@ -66,7 +59,29 @@ Debug versions have limited support
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This solution includes limited support for debug versions of libpng. You
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do not need these unless your own solution itself uses debug builds (it is
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far more effective to debug on the release builds, there is no point building
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a special debug build.)
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a special debug build unless you have heap corruption problems that you can't
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track down.)
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The debug build of libpng is minimally supported. Support for debug builds of
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zlib is also minimal. You really don't want to do this.
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WARNING
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=======
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Libpng 1.5.x erroneously uses /MD for Debug DLL builds; if you used the
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debug builds in your app and you changed your app to use /MD you will need
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to change it back to /MDd for libpng 1.6.0 and later.
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The runtime library settings for each build are as follows:
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Release Debug
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DLL /MD /MDd
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Library /MT /MTd
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The Visual Studio 2010 defaults for a Win32 DLL or Static Library project are
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as follows:
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Release Debug
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DLL /MD /MDd
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Static Library /MD /MDd
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@ -1,23 +0,0 @@
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WARNING
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=======
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Libpng 1.5 erroneously uses /MD when building debug DLL versions of libpng.
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It should use /MDd - you can change this under properties\C/C++\Code
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Generation\Runtime Library if you need to use the debug runtime for debug
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builds. This will be changed in libpng 1.6 but is currently retained for
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compatibility with older libpng 1.5 releases.
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The runtime library settings for each build are as follows:
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Release Debug
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DLL /MD /MD
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Library /MT /MTd
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The Visual Studio 2010 defaults for a Win32 DLL or Static Library project are
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as follows:
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Release Debug
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DLL /MD /MDd
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Static Library /MD /MDd
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Notice that by default static library builds use the DLL runtime, not the
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static library runtime.
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