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--- internals:windows:libs:libpng [2008/05/16 21:45] – pajoye
+++ internals:windows:libs:libpng [2013/02/21 14:00] – [Available prebuilt libraries] ab
@@ Line 1: / Line 1: @@
 ====== LibPNG Windows, How to compile ======
-===== Building LibPng 1.2.29 =====
+===== Available prebuilt libraries =====
+All prebuilt libraries are available in the php-libs [[http://windows.php.net/downloads/php-sdk/|repositories]]
+For PHP suitable sources and up-to-date information see [[https://github.com/winlibs/libpng]]
+The filename format is:
+libpng-x.y.z-vcversion-asm.zip
+where x.y.z defines the version, vcversion which Visual C++ has been used and -asm tells if the ASM optimizations have been used or not (see the options below).
+===== Building LibPng 1.2.35 =====
 ==== Requirements =====
   * LibPNG Sources, [[http://www.libpng.org|]]
+  * Zlib binaries and development files [[http://windows.php.net/downloads/php-sdk/|]]
   * Common tools used to compile PHP
-  * LibPNG Makefile [[_media/internals/windows/libs/libxslt-makefile.msvc.patch.txt|]][[Internal Link]]
+  * LibPNG Makefile {{internals:windows:libs:libpng.mak.txt|}}
+  * LibPNG Dep File{{internals:windows:libs:libpng.dep.txt|}}
+==== Configuration =====
+LibPNG can be compiled using various modes. Only the following list can be used with PHP:
+  * "libpng - Win32 DLL Release" based on "Win32 (x86) Dynamic-Link Library"
+  * "libpng - Win32 DLL Debug" based on "Win32 (x86) Dynamic-Link Library")
+  * "libpng - Win32 DLL ASM Release" based on "Win32 (x86) Dynamic-Link Library"
+  * "libpng - Win32 DLL ASM Debug" based on "Win32 (x86) Dynamic-Link Library"
+  * "libpng - Win32 LIB Release" based on "Win32 (x86) Static Library"
+  * "libpng - Win32 LIB Debug" based on "Win32 (x86) Static Library"
+  * "libpng - Win32 LIB ASM Release" based on "Win32 (x86) Static Library"
+  * "libpng - Win32 LIB ASM Debug" based on "Win32 (x86) Static Library"
+PHP uses "libpng - Win32 LIB ASM Release" and "libpng - Win32 LIB ASM Debug" respectively for the normal and debug PHP builds
+One of these option has to be used while calling the makefile.
+The ASM versions do not work yet with Visual C++ 8 (VS2005) or later. We did not have the time to fix the .asm files. Contributions welcome (both for php and for the libpng project).
+Download the {{internals:windows:libs:libpng.mak.txt|libpng Makefile}} and {{internals:windows:libs:libpng.dep.txt|dep file}} and remove the .txt extension.
+==== Compile =====
+This step describe the process for Visual C++ 6. It should work for 2k3/5/8 as well but it is not yet tested. However you can use the VC7.1 project files in the libpng archive if the libpng.mak fails.
+Copy the make file to the project\vc6 directory To compile libpng, simply go to th proj==ects directory of the libpng source and run:
+<code bash>
+cd c:\build_php_deps\libpng1229\projects\
+nmake /f libpng.mak CFG="libpng - Win32 LIB Release"  PHP_SDK_PATH="c:\php_sdk\"
+</code>
+> If the Platform has changed between two different builds (win32 to x64 or x64 to win32), it is necessary to clean the builds before building a dllor  a lib. If the objs have been built for a different platform you will get a linker error (machine does not match).
+==== Install in the SDK ====
+To be written

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