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author | Peter Breitenlohner <peb@mppmu.mpg.de> | 2014-12-22 08:37:56 +0000 |
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committer | Peter Breitenlohner <peb@mppmu.mpg.de> | 2014-12-22 08:37:56 +0000 |
commit | 4f62c53b606577c3477d7a1af116a102f07abb71 (patch) | |
tree | 0f13b100c2791908baf1942c32bcf1a2021b2fe4 /Build/source/libs/libpng/libpng-1.6.16/projects/vstudio/readme.txt | |
parent | b1526e212d9e109bd311151d8523d630677ba2b2 (diff) |
libpng 1.6.16
git-svn-id: svn://tug.org/texlive/trunk@35880 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/libpng/libpng-1.6.16/projects/vstudio/readme.txt')
-rw-r--r-- | Build/source/libs/libpng/libpng-1.6.16/projects/vstudio/readme.txt | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/Build/source/libs/libpng/libpng-1.6.16/projects/vstudio/readme.txt b/Build/source/libs/libpng/libpng-1.6.16/projects/vstudio/readme.txt new file mode 100644 index 00000000000..e7a02d876ef --- /dev/null +++ b/Build/source/libs/libpng/libpng-1.6.16/projects/vstudio/readme.txt @@ -0,0 +1,65 @@ + +VisualStudio instructions + +libpng version 1.6.16 - December 22, 2014 + +Copyright (c) 1998-2010 Glenn Randers-Pehrson + +This code is released under the libpng license. +For conditions of distribution and use, see the disclaimer +and license in png.h + +This directory contains support for building libpng under MicroSoft +VisualStudio 2010. It may also work under later versions of VisualStudio. +You should be familiar with VisualStudio before using this directory. + +Initial preparations +==================== +You must enter some information in zlib.props before attempting to build +with this 'solution'. Please read and edit zlib.props first. You will +probably not be familiar with the contents of zlib.props - do not worry, +it is mostly harmless. + +This is all you need to do to build the 'release' and 'release library' +configurations. + +Debugging +========= +The release configurations default to /Ox optimization. Full debugging +information is produced (in the .pdb), but if you encounter a problem the +optimization may make it difficult to debug. Simply rebuild with a lower +optimization level (e.g. /Od.) + +Linking your application +======================== +Normally you should link against the 'release' configuration. This builds a +DLL for libpng with the default runtime options used by Visual Studio 2010. +In particular the runtime library is the "MultiThreaded DLL" version. +If you use Visual Studio defaults to build your application you will have no +problems. + +If you don't use the Visual Studio defaults your application must still be built +with the default runtime option (/MD). If, for some reason, it is not then your +application will crash inside libpng16.dll as soon as libpng tries to read +from a file handle you pass in. + +If you do not want to use the DLL, for example for a very small application, +the 'release library' configuration may be more appropriate. This is built +with a non-standard runtime library - the "MultiThreaded" version. When you +build your application it must be compiled with this option (/MT), otherwise +it will not build (if you are lucky) or crash (if you are not.) + +Stop reading here +================= +You have enough information to build a working application. + +Debug versions have limited support +=================================== +This solution includes limited support for debug versions of libpng. You +do not need these unless your own solution itself uses debug builds (it is +far more effective to debug on the release builds, there is no point building +a special debug build unless you have heap corruption problems that you can't +track down.) + +The debug build of libpng is minimally supported. Support for debug builds of +zlib is also minimal. You really don't want to do this. |