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<title>LibRaw Compilation and Installation</title>
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<h1>LibRaw Compilation and Installation</h1>
<p>LibRaw is distributed in the form of source codes. For further use, they
should be compiled (and, if desired, placed into system folders with
libraries and include-files).</p>
<a name="unix"></a>
<h2>Unix Systems (FreeBSD, Linux, Mac OS X)</h2>
<p> To build the library, you will need a working C++ compiler (gcc 3+ and
clang 2+ are OK) and the make utility. </p>
<p>Additional libraries (optional):</p>
<ul>
<li>zlib (used to decode deflated DNGs)</li>
<li>libjasper (used to decode RED files)</li>
<li>libjpeg8 (used to decode lossy DNGs and several old Kodak cameras)</li>
</ul>
<p> LibRaw has been tested on 32- and 64-bit Unix systems working on x86-
(and AMD64-) compatible processors. Building and work on other
architectures have not been tested. </p>
<h3>Compilation of Library and Examples</h3>
<p> Unpack the downloaded distribution package.</p>
<pre> tar xzvf LibRaw-X.YY.tar.gz
</pre>
<p>For GitHub downloads (clones), perform ./configure script generation via</p>
<pre> autoreconf --install</pre>
<p>Go to LibRaw directory and run <b>./configure</b> and <b>make</b>: </p>
<pre>cd LibRaw-X.YY
./configure # with optional args
make
</pre>
<p>As a result, you will compile</p>
<ul>
<li>Library libraw.a in the lib/ folder</li>
<li><a href="Samples-LibRaw.html">Examples</a> in the bin/ folder (source
codes of examples are in the samples/ folder).</li>
</ul>
<p>In the current version, only static libraries are built:</p>
<ul>
<li>libraw.a: non-thread-safe version</li>
<li>libraw_r.a: thread-safe</li>
</ul>
<h3>Build parameters</h3>
<p> ./configure script have some non-standard parameters: </p>
<dl>
<dt> --enable-openmp<br>
--disable-openmp </dt>
<dd> Enable/disable OpenMP support if compiler supports it. OpenMP is
enabled by default. </dd>
<dt> --enable-lcms<br>
--disable-lcms </dt>
<dd> Enable/disable LCMS color engine support. If enabled, ./configure
will try to find lcms library. Both LCMS-1.x and LCMS-2.x are supported
LCMS support is enabled by default </dd>
<dt> --enable-examples<br>
--disable-examples </dt>
<dd> Enables/disables examples compilation and installation. Enabled by
default </dd>
</dl>
<h3>Installation and Usage</h3>
<p>To install the library, run</p>
<pre> sudo make install
</pre>
<p> It will place the libraries in <b>/usr/local/lib</b>, the include-files
in <b>/usr/local/include</b> (subfolder of libraw) and LibRaw samples to
<b>/usr/local/bin</b>. You can override installation path by using
./configure script. <br>
To use LibRaw, add the following parameters to the compiler call (when
building your own projects): </p>
<ul>
<li>Path to include-files: -I/usr/local/include</li>
<li>Path to libraries: -L/usr/local/lib</li>
<li>Library: -lraw (ordinary version) or -lraw_r (thread-safe version).</li>
</ul>
<h2>Windows: Building under Cygwin</h2>
<p> Building and installation are completely similar to <a href="#unix">building
and installation under Unix systems</a>. </p>
<h2>Windows: Native Building</h2>
<p> Building under Windows has three steps: </p>
<ul>
<li>Unpack the distribution package (if you have got no tar+gzip, take the
LibRaw distribution package in the .ZIP format) and go to folder
LibRaw-X.YYY. </li>
<li>Set the environment parameters so that the compiler/linker would find
the libraries and include-files. For Visual C++, this is done by running
<b>vcvars32.bat</b>. </li>
<li> Run<br>
<b>nmake -f Makefile.msvc</b><br>
</li>
</ul>
<p>You may need to edit Makefile.msvc to provide libjpeg/zlib/libjasper
paths to INCLUDE/LIB.</p>
<p> If all paths are set correctly and the include-files/libraries have been
found, then the following will be compiled:</p>
<ul>
<li>Library libraw_static.lib in folder lib</li>
<li>Dynamic library bin/libraw.dll and linking library for it
lib/libraw.lib</li>
<li>Examples in folder bin/.</li>
</ul>
<p>Only the thread-safe library is built under Win32, but it can be used
with non-threaded applications as well. All examples are linked with the
dynamic library (DLL); if static linking is necessary, one should link
applications with library libraw_static.lib and set the preprocessor
option /DLIBRAW_NODLL during compilation. </p>
<p> Windows-version compiles without LCMS support for now. </p>
<p> During building of DLL, all public functions are exported; further, the
exported subset may be reduced. </p>
<p> Unfortunately, paths to include/ libraries depend on the way Visual C
(or other compiler) is installed; therefore, it is impossible to specify
some standard paths in Makefile.msvc. </p>
<h2>Windows Installation</h2>
<p> No installation under Windows is supported. It is assumed that all DLLs
will be supplied together with the software using them (and this software
will perform the installation). Accordingly, in building of programs using
LibRaw, the paths to libraries, DLLs, and include-files should be
specified manually. </p>
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