====== LipJpeg for Windows, How to compile ======


===== Available prebuilt libraries =====

All prebuilt libraries are available in the php-libs [[http://windows.php.net/downloads/php-sdk/deps/|repositories]]

The filename format is:

libjpeg-x.y.z-vcversion.zip

where x.y.z defines the version, vcversion which Visual C++ has been used.

Only static library (.lib) are available for now.

===== Building libjpeg 8d =====



==== Requirements =====
  * LibJpeg Sources, fetch our (possibly patched) [[https://github.com/winlibs/libjpeg|version]] or the original [[http://www.ijg.org|sources]
  * Common tools used to compile PHP


==== Preparing the sources =====

To compile libjpeg to be used with PHP (and more generally with any decent VC), the makefile has to be altered, add the /MT flag as follow (~ line 15):

<code makefile>
CFLAGS= $(cflags) $(cdebug) $(cvars) -I. /MD
</code> 

then 


<code makefile>
 copy jconfig.vc jconfig.h
</code> 

==== Configuration =====

Two modes are available, debug or non debug (fully optimized).


==== Compilation =====

=== Release ====

<code bash>
nmake /f makefile.vc nodebug=1
</code>

=== Debug ====

<code bash>
nmake /f makefile.vc
</code>

For VC11 you might need to copy the win32.mak from the Windows SDK file into the jpeg source dir.