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  <div class="section" id="building-the-library">
<h1>Building The Library<a class="headerlink" href="#building-the-library" title="Permalink to this headline">¶</a></h1>
<p>This document describes how to build Botan on Unix/POSIX and MS
Windows systems. The POSIX oriented descriptions should apply to most
common Unix systems (including MacOS X), along with POSIX-ish systems
like BeOS, QNX, and Plan 9. Currently, systems other than Windows and
POSIX (such as VMS, MacOS 9, OS/390, OS/400, …) are not supported by
the build system, primarily due to lack of access. Please contact the
maintainer if you would like to build Botan on such a system.</p>
<p>Botan’s build is controlled by, which is a <a class="reference external" href="">Python</a> script. Python 2.5 or later is required.</p>
<p>For the impatient, this works for most systems:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ ./ [--prefix=/some/directory]
$ make
$ make check
$ make install
<p>Or using <code class="docutils literal notranslate"><span class="pre">nmake</span></code>, if you’re compiling on Windows with Visual C++. On
platforms that do not understand the ‘#!’ convention for beginning
script files, or that have Python installed in an unusual spot, you
might need to prefix the <code class="docutils literal notranslate"><span class="pre"></span></code> command with <code class="docutils literal notranslate"><span class="pre">python</span></code> or
<code class="docutils literal notranslate"><span class="pre">/path/to/python</span></code>:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ python ./ [arguments]
<div class="section" id="configuring-the-build">
<h2>Configuring the Build<a class="headerlink" href="#configuring-the-build" title="Permalink to this headline">¶</a></h2>
<p>The first step is to run <code class="docutils literal notranslate"><span class="pre"></span></code>, which is a Python script
that creates various directories, config files, and a Makefile for
building everything. The script requires at least Python 2.5; any
later version of Python 2.x should also work. Python 3.1 will also
work but requires an extra step; see <a class="reference internal" href="#configure-with-python3"><span class="std std-ref">Configuring the Build With Python 3.1</span></a> for
<p>The script will attempt to guess what kind of system you are trying to
compile for (and will print messages telling you what it guessed).
You can override this process by passing the options <code class="docutils literal notranslate"><span class="pre">--cc</span></code>,
<code class="docutils literal notranslate"><span class="pre">--os</span></code>, and <code class="docutils literal notranslate"><span class="pre">--cpu</span></code>.</p>
<p>You can pass basically anything reasonable with <code class="docutils literal notranslate"><span class="pre">--cpu</span></code>: the script
knows about a large number of different architectures, their
sub-models, and common aliases for them. You should only select the
64-bit version of a CPU (such as “sparc64” or “mips64”) if your
operating system knows how to handle 64-bit object code - a 32-bit
kernel on a 64-bit CPU will generally not like 64-bit code.</p>
<p>By default the script tries to figure out what will work on your
system, and use that. It will print a display at the end showing which
algorithms have and have not been enabled. For instance on one system
we might see lines like:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="nl">INFO</span><span class="p">:</span> <span class="n">Skipping</span><span class="p">,</span> <span class="n">by</span> <span class="n">request</span> <span class="n">only</span> <span class="o">-</span> <span class="n">bzip2</span> <span class="n">gnump</span> <span class="n">openssl</span> <span class="n">qt_mutex</span> <span class="n">zlib</span>
<span class="nl">INFO</span><span class="p">:</span> <span class="n">Skipping</span><span class="p">,</span> <span class="n">incompatible</span> <span class="n">CPU</span> <span class="o">-</span> <span class="n">aes_intel</span> <span class="n">aes_ssse3</span> <span class="n">asm_x86_64</span> <span class="n">mp_asm64</span> <span class="n">mp_x86_64</span> <span class="n">sha1_x86_64</span>
<span class="nl">INFO</span><span class="p">:</span> <span class="n">Skipping</span><span class="p">,</span> <span class="n">incompatible</span> <span class="n">OS</span> <span class="o">-</span> <span class="n">beos_stats</span> <span class="n">cryptoapi_rng</span> <span class="n">win32_crit_section</span> <span class="n">win32_stats</span>
<span class="nl">INFO</span><span class="p">:</span> <span class="n">Skipping</span><span class="p">,</span> <span class="n">incompatible</span> <span class="n">compiler</span> <span class="o">-</span> <span class="n">mp_msvc64</span> <span class="n">mp_x86_32_msvc</span>
<p>The ones that are skipped because they are ‘by request only’ have to
be explicitly asked for, because they rely on third party libraries
which your system might not have or that you might not want the
resulting binary to depend on. For instance to enable zlib support,
add <code class="docutils literal notranslate"><span class="pre">--with-zlib</span></code> to your invocation of <code class="docutils literal notranslate"><span class="pre"></span></code>.</p>
<p>You can control which algorithms and modules are built using the
options <code class="docutils literal notranslate"><span class="pre">--enable-modules=MODS</span></code> and <code class="docutils literal notranslate"><span class="pre">--disable-modules=MODS</span></code>, for
instance <code class="docutils literal notranslate"><span class="pre">--enable-modules=zlib</span></code> and <code class="docutils literal notranslate"><span class="pre">--disable-modules=rc5,idea</span></code>.
Modules not listed on the command line will simply be loaded if needed
or if configured to load by default. If you use <code class="docutils literal notranslate"><span class="pre">--no-autoload</span></code>,
only the most core modules will be included; you can then explicitly
enable things that you want to use with <code class="docutils literal notranslate"><span class="pre">--enable-modules</span></code>. This is
useful for creating a minimal build targeting to a specific
application, especially in conjunction with the amalgamation option;
see <a class="reference internal" href="#amalgamation"><span class="std std-ref">The Amalgamation Build</span></a>.</p>
<p>For instance:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ ./ --no-autoload --enable-modules=rsa,ecdsa,eme1,emsa1,emsa4
<p>will set up a build that only includes RSA, ECDSA, and some padding
modes, along with their dependencies. A small subset of core features,
including AES, SHA-2, HMAC, and the multiple precision integer
library, are always loaded.</p>
<p>The script tries to guess what kind of makefile to generate, and it
almost always guesses correctly (basically, Visual C++ uses NMAKE with
Windows commands, and everything else uses Unix make with POSIX
commands). Just in case, you can override it with
<code class="docutils literal notranslate"><span class="pre">--make-style=somestyle</span></code>. The styles Botan currently knows about are
‘unix’ (normal Unix makefiles), and ‘nmake’, the make variant commonly
used by Windows compilers. To add a new variant (eg, a build script
for VMS), you will need to create a new template file in
<code class="docutils literal notranslate"><span class="pre">src/build-data/makefile</span></code>.</p>
<div class="section" id="on-unix">
<h3>On Unix<a class="headerlink" href="#on-unix" title="Permalink to this headline">¶</a></h3>
<p>The basic build procedure on Unix and Unix-like systems is:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ ./ [--enable-modules=&lt;list&gt;] [--cc=CC]
$ make
# You may need to set your LD_LIBRARY_PATH or equivalent for ./check to run
$ make check # optional, but a good idea
$ make install
<p>On Unix systems the script will default to using GCC; use
<code class="docutils literal notranslate"><span class="pre">--cc</span></code> if you want something else. For instance use
<code class="docutils literal notranslate"><span class="pre">--cc=icc</span></code> for Intel C++ and <code class="docutils literal notranslate"><span class="pre">--cc=clang</span></code> for Clang.</p>
<p>The <code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">install</span></code> target has a default directory in which it
will install Botan (typically <code class="docutils literal notranslate"><span class="pre">/usr/local</span></code>). You can override
this by using the <code class="docutils literal notranslate"><span class="pre">--prefix</span></code> argument to
<code class="docutils literal notranslate"><span class="pre"></span></code>, like so:</p>
<p><code class="docutils literal notranslate"><span class="pre">./</span> <span class="pre">--prefix=/opt</span> <span class="pre">&lt;other</span> <span class="pre">arguments&gt;</span></code></p>
<p>On some systems shared libraries might not be immediately visible to
the runtime linker. For example, on Linux you may have to edit
<code class="docutils literal notranslate"><span class="pre">/etc/</span></code> and run <code class="docutils literal notranslate"><span class="pre">ldconfig</span></code> (as root) in
order for new shared libraries to be picked up by the linker. An
alternative is to set your <code class="docutils literal notranslate"><span class="pre">LD_LIBRARY_PATH</span></code> shell variable
to include the directory that the Botan libraries were installed into.</p>
<div class="section" id="on-mac-os-x">
<h3>On Mac OS X<a class="headerlink" href="#on-mac-os-x" title="Permalink to this headline">¶</a></h3>
<p>In general the Unix instructions above should apply, however OS X does
not support <code class="docutils literal notranslate"><span class="pre">LD_LIBRARY_PATH</span></code>. Thomas Keller suggests instead
running <code class="docutils literal notranslate"><span class="pre">install_name_tool</span></code> between building and running the
self-test program:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ VERSION=1.10.0 # or whatever the current version is
$ install_name_tool -change $(otool -X -D libbotan-$VERSION.dylib) \
     $PWD/libbotan-$VERSION.dylib check
<div class="section" id="building-universal-binaries">
<h4>Building Universal Binaries<a class="headerlink" href="#building-universal-binaries" title="Permalink to this headline">¶</a></h4>
<p>To build a universal binary for OS X, some simple modifications are
required. First, create a CPU type for the target universalbinary,
one that doesn’t specify any special handlers. This is done by
creating an empty file in src/build-data/arch:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ touch src/build-data/arch/universalbinary.txt
<p>and then adding a special target for it in gcc, by adding the line:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span><span class="n">universalbinary</span> <span class="o">-&gt;</span> <span class="s">&quot;-force_cpusubtype_ALL -mmacosx-version-min=10.4 -arch i386 -arch ppc&quot;</span>
<p>in the section marked <cite>&lt;mach_abi_linking&gt;</cite> in
<cite>src/build-data/cc/gcc.txt</cite>. Then configure with:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ ./ --cpu=universalbinary [other options here]
<div class="section" id="on-ms-windows">
<h3>On MS Windows<a class="headerlink" href="#on-ms-windows" title="Permalink to this headline">¶</a></h3>
<p>If you don’t want to deal with building botan on Windows, check the
website; commonly prebuilt Windows binaries with installers are
available, especially for stable versions.</p>
<p>You need to have a copy of Python installed, and have both Python and
your chosen compiler in your path. Open a command shell (or the SDK
shell), and run:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>&gt; python --cc=msvc (or --cc=gcc for MinGW) [--cpu=CPU]
&gt; nmake
&gt; nmake check # optional, but recommended
&gt; nmake install
<p>For Win95 pre OSR2, the <code class="docutils literal notranslate"><span class="pre">cryptoapi_rng</span></code> module will not work,
because CryptoAPI didn’t exist. And all versions of NT4 lack the
ToolHelp32 interface, which is how <code class="docutils literal notranslate"><span class="pre">win32_stats</span></code> does its slow
polls, so a version of the library built with that module will not
load under NT4. Later versions of Windows support both methods, so
this shouldn’t be much of an issue anymore.</p>
<p>By default the install target will be <code class="docutils literal notranslate"><span class="pre">C:\botan</span></code>; you can modify
this with the <code class="docutils literal notranslate"><span class="pre">--prefix</span></code> option.</p>
<p>When building your applications, all you have to do is tell the
compiler to look for both include files and library files in
<code class="docutils literal notranslate"><span class="pre">C:\botan</span></code>, and it will find both. Or you can move them to a
place where they will be in the default compiler search paths (consult
your documentation and/or local expert for details).</p>
<div class="section" id="other-build-related-tasks">
<h2>Other Build-Related Tasks<a class="headerlink" href="#other-build-related-tasks" title="Permalink to this headline">¶</a></h2>
<div class="section" id="building-the-documentation">
<span id="building-docs"></span><h3>Building The Documentation<a class="headerlink" href="#building-the-documentation" title="Permalink to this headline">¶</a></h3>
<p>There are two documentation options available, Sphinx and Doxygen.
Sphinx will be used if <code class="docutils literal notranslate"><span class="pre">sphinx-build</span></code> is detected in the PATH, or if
<code class="docutils literal notranslate"><span class="pre">--with-sphinx</span></code> is used at configure time. Doxygen is only enabled
if <code class="docutils literal notranslate"><span class="pre">--with-doxygen</span></code> is used. Both are generated by the makefile
target <code class="docutils literal notranslate"><span class="pre">docs</span></code>.</p>
<div class="section" id="the-amalgamation-build">
<span id="amalgamation"></span><h3>The Amalgamation Build<a class="headerlink" href="#the-amalgamation-build" title="Permalink to this headline">¶</a></h3>
<p>You can also configure Botan to be built using only a single source
file; this is quite convenient if you plan to embed the library into
another application. To do so, run <code class="docutils literal notranslate"><span class="pre"></span></code> with whatever
arguments you would ordinarily use, along with the option
<code class="docutils literal notranslate"><span class="pre">--gen-amalgamation</span></code>. This will create two (rather large) files,
<code class="docutils literal notranslate"><span class="pre">botan_all.h</span></code> and <code class="docutils literal notranslate"><span class="pre">botan_all.cpp</span></code>.</p>
<p>Whenever you would have included a botan header, you can then include
<code class="docutils literal notranslate"><span class="pre">botan_all.h</span></code>, and include <code class="docutils literal notranslate"><span class="pre">botan_all.cpp</span></code> along with the rest of
the source files in your build. If you want to be able to easily
switch between amalgamated and non-amalgamated versions (for instance
to take advantage of prepackaged versions of botan on operating
systems that support it), you can instead ignore <code class="docutils literal notranslate"><span class="pre">botan_all.h</span></code> and
use the headers from <code class="docutils literal notranslate"><span class="pre">build/include</span></code> as normal.</p>
<p>You can also build the library as normal but using the amalgamation
instead of the individual source files using <code class="docutils literal notranslate"><span class="pre">--via-amalgamation</span></code>.
This is essentially a very simple form of link time optimization;
because the entire library source is visible to the compiler, it has
more opportunities for interprocedural optimizations.</p>
<div class="section" id="modules-relying-on-third-party-libraries">
<h3>Modules Relying on Third Party Libraries<a class="headerlink" href="#modules-relying-on-third-party-libraries" title="Permalink to this headline">¶</a></h3>
<p>There are a fairly large number of modules included with Botan. Some
of these are extremely useful, while others are only necessary in very
unusual circumstances. Most are loaded (or not) automatically as
necessary, but some require external libraries are thus must be
enabled at build time; these include:</p>
<div><ul class="simple">
<li><code class="docutils literal notranslate"><span class="pre">--with-bzip2</span></code> enables the filters providing bzip2 compression
and decompression. Requires the bzip2 development libraries to be
<li><code class="docutils literal notranslate"><span class="pre">--with-zlib</span></code> enables the filters providing zlib compression
and decompression. Requires the zlib development libraries to be
<li><code class="docutils literal notranslate"><span class="pre">--with-gnump</span></code> adds an alternative engine for public key
cryptography that uses the GNU MP library. GNU MP 4.1 or later is
<li><code class="docutils literal notranslate"><span class="pre">--with-openssl</span></code> adds an engine that uses OpenSSL for some public
key operations and ciphers/hashes. OpenSSL 0.9.7 or later is
required. Note that OpenSSL’s versions are not always faster than
the versions built into botan.</li>
<div class="section" id="multiple-builds">
<h3>Multiple Builds<a class="headerlink" href="#multiple-builds" title="Permalink to this headline">¶</a></h3>
<p>It may be useful to run multiple builds with different
configurations. Specify <code class="docutils literal notranslate"><span class="pre">--build-dir=&lt;dir&gt;</span></code> to set up a build
environment in a different directory.</p>
<div class="section" id="configuring-the-build-with-python-3-1">
<span id="configure-with-python3"></span><h3>Configuring the Build With Python 3.1<a class="headerlink" href="#configuring-the-build-with-python-3-1" title="Permalink to this headline">¶</a></h3>
<p>The versions of Python beginning with 3 are (intentionally)
incompatible with the (currently more common) 2.x series. If you want
to use Python 3.1 to set up the build, you’ll have to use the
<code class="docutils literal notranslate"><span class="pre">2to3</span></code> program (included in the Python distribution) on the
script; this will convert the script to the Python 3.x dialect:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ python ./
File &quot;;, line 860
  except KeyError, e:
SyntaxError: invalid syntax
$ # incompatible python version, let&#39;s fix it
$ 2to3 -w
RefactoringTool: Files that were modified:
$ python ./
<div class="section" id="setting-distribution-info">
<h3>Setting Distribution Info<a class="headerlink" href="#setting-distribution-info" title="Permalink to this headline">¶</a></h3>
<p>The build allows you to set some information about what distribution
this build of the library comes from.  It is particularly relevant to
people packaging the library for wider distribution, to signify what
distribution this build is from. Applications can test this value by
checking the string value of the macro <code class="docutils literal notranslate"><span class="pre">BOTAN_DISTRIBUTION_INFO</span></code>. It
can be set using the <code class="docutils literal notranslate"><span class="pre">--distribution-info</span></code> flag to <code class="docutils literal notranslate"><span class="pre"></span></code>,
and otherwise defaults to “unspecified”. For instance, a <a class="reference external" href="">Gentoo</a> ebuild might set it with
<code class="docutils literal notranslate"><span class="pre">--distribution-info=&quot;Gentoo</span> <span class="pre">${PVR}&quot;</span></code> where <code class="docutils literal notranslate"><span class="pre">${PVR}</span></code> is an ebuild
variable automatically set to a combination of the library and ebuild
<div class="section" id="local-configuration-settings">
<h3>Local Configuration Settings<a class="headerlink" href="#local-configuration-settings" title="Permalink to this headline">¶</a></h3>
<p>You may want to do something peculiar with the configuration; to
support this there is a flag to <code class="docutils literal notranslate"><span class="pre"></span></code> called
<code class="docutils literal notranslate"><span class="pre">--with-local-config=&lt;file&gt;</span></code>. The contents of the file are
inserted into <code class="docutils literal notranslate"><span class="pre">build/build.h</span></code> which is (indirectly) included
into every Botan header and source file.</p>
<div class="section" id="configuration-parameters">
<h3>Configuration Parameters<a class="headerlink" href="#configuration-parameters" title="Permalink to this headline">¶</a></h3>
<p>There are some configuration parameters which you may want to tweak
before building the library. These can be found in <code class="docutils literal notranslate"><span class="pre">config.h</span></code>. This
file is overwritten every time the configure script is run (and does
not exist until after you run the script for the first time).</p>
<p>Also included in <code class="docutils literal notranslate"><span class="pre">build/build.h</span></code> are macros which let applications
check which features are included in the current version of the
library. All of them begin with <code class="docutils literal notranslate"><span class="pre">BOTAN_HAS_</span></code>. For example, if
<code class="docutils literal notranslate"><span class="pre">BOTAN_HAS_BLOWFISH</span></code> is defined, then an application can include
<code class="docutils literal notranslate"><span class="pre">&lt;botan/blowfish.h&gt;</span></code> and use the Blowfish class.</p>
<p><code class="docutils literal notranslate"><span class="pre">BOTAN_MP_WORD_BITS</span></code>: This macro controls the size of the words used
for calculations with the MPI implementation in Botan. You can choose
8, 16, 32, or 64. Normally this defaults to either 32 or 64, depending
on the processor. Unless you are building for a 8 or 16-bit CPU, this
isn’t worth messing with.</p>
<p><code class="docutils literal notranslate"><span class="pre">BOTAN_VECTOR_OVER_ALLOCATE</span></code>: The memory container <code class="docutils literal notranslate"><span class="pre">SecureVector</span></code>
will over-allocate requests by this amount (in elements). In several
areas of the library, we grow a vector fairly often. By
over-allocating by a small amount, we don’t have to do allocations as
often (which is good, because the allocators can be quite slow). If
you <em>really</em> want to reduce memory usage, set it to 0. Otherwise, the
default should be perfectly fine.</p>
<p><code class="docutils literal notranslate"><span class="pre">BOTAN_DEFAULT_BUFFER_SIZE</span></code>: This constant is used as the size of
buffers throughout Botan. A good rule of thumb would be to use the
page size of your machine. The default should be fine for most
<div class="section" id="building-applications">
<h2>Building Applications<a class="headerlink" href="#building-applications" title="Permalink to this headline">¶</a></h2>
<div class="section" id="unix">
<h3>Unix<a class="headerlink" href="#unix" title="Permalink to this headline">¶</a></h3>
<p>Botan usually links in several different system libraries (such as
<code class="docutils literal notranslate"><span class="pre">librt</span></code> and <code class="docutils literal notranslate"><span class="pre">libz</span></code>), depending on which modules are
configured at compile time. In many environments, particularly ones
using static libraries, an application has to link against the same
libraries as Botan for the linking step to succeed. But how does it
figure out what libraries it <em>is</em> linked against?</p>
<p>The answer is to ask the <code class="docutils literal notranslate"><span class="pre">botan-config</span></code> script. This
basically solves the same problem all the other <code class="docutils literal notranslate"><span class="pre">*-config</span></code>
scripts solve, and in basically the same manner.</p>
<p>There are 4 options:</p>
<p><code class="docutils literal notranslate"><span class="pre">--prefix[=DIR]</span></code>: If no argument, print the prefix where Botan
is installed (such as <code class="docutils literal notranslate"><span class="pre">/opt</span></code> or <code class="docutils literal notranslate"><span class="pre">/usr/local</span></code>). If an
argument is specified, other options given with the same command will
execute as if Botan as actually installed at <code class="docutils literal notranslate"><span class="pre">DIR</span></code> and not
where it really is; or at least where <code class="docutils literal notranslate"><span class="pre">botan-config</span></code> thinks
it really is. I should mention that it</p>
<p><code class="docutils literal notranslate"><span class="pre">--version</span></code>: Print the Botan version number.</p>
<p><code class="docutils literal notranslate"><span class="pre">--cflags</span></code>: Print options that should be passed to the compiler
whenever a C++ file is compiled. Typically this is used for setting
include paths.</p>
<p><code class="docutils literal notranslate"><span class="pre">--libs</span></code>: Print options for which libraries to link to (this includes
<code class="docutils literal notranslate"><span class="pre">-lbotan</span></code>).</p>
<p>Your <code class="docutils literal notranslate"><span class="pre">Makefile</span></code> can run <code class="docutils literal notranslate"><span class="pre">botan-config</span></code> and get the
options necessary for getting your application to compile and link,
regardless of whatever crazy libraries Botan might be linked against.</p>
<p>Botan also by default installs a file for <code class="docutils literal notranslate"><span class="pre">pkg-config</span></code>,
namespaced by the major and minor versions. So it can be used,
for instance, as:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ pkg-config botan-1.10 --modversion
$ pkg-config botan-1.10 --cflags
$ pkg-config botan-1.10 --libs
-L/usr/local/lib -lbotan -lm -lbz2 -lpthread -lrt
<div class="section" id="ms-windows">
<h3>MS Windows<a class="headerlink" href="#ms-windows" title="Permalink to this headline">¶</a></h3>
<p>No special help exists for building applications on Windows. However,
given that typically Windows software is distributed as binaries, this
is less of a problem - only the developer needs to worry about it. As
long as they can remember where they installed Botan, they just have
to set the appropriate flags in their Makefile/project file.</p>
<div class="section" id="language-wrappers">
<h2>Language Wrappers<a class="headerlink" href="#language-wrappers" title="Permalink to this headline">¶</a></h2>
<div class="section" id="building-the-python-wrappers">
<h3>Building the Python wrappers<a class="headerlink" href="#building-the-python-wrappers" title="Permalink to this headline">¶</a></h3>
<p>The Python wrappers for Botan use Boost.Python, so you must have Boost
installed. To build the wrappers, pass the flag
<code class="docutils literal notranslate"><span class="pre">--with-boost-python</span></code> to <code class="docutils literal notranslate"><span class="pre"></span></code>. This will create a second
makefile, <code class="docutils literal notranslate"><span class="pre">Makefile.python</span></code>, with instructions for building the
Python module. After building the library, execute:</p>
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ make -f Makefile.python
<p>to build the module. Currently only Unix systems are supported, and
the Makefile assumes that the version of Python you want to build
against is the same one you used to run <code class="docutils literal notranslate"><span class="pre"></span></code>.</p>
<p>To install the module, use the <code class="docutils literal notranslate"><span class="pre">install</span></code> target.</p>
<p>See <a class="reference internal" href="python.html"><span class="doc">Python Bindings</span></a> for more information about the
<div class="section" id="building-the-perl-xs-wrappers">
<h3>Building the Perl XS wrappers<a class="headerlink" href="#building-the-perl-xs-wrappers" title="Permalink to this headline">¶</a></h3>
<p>To build the Perl XS wrappers, change your directory to
<code class="docutils literal notranslate"><span class="pre">src/wrap/perl-xs</span></code> and run <code class="docutils literal notranslate"><span class="pre">perl</span> <span class="pre">Makefile.PL</span></code>, then run
<code class="docutils literal notranslate"><span class="pre">make</span></code> to build the module and <code class="docutils literal notranslate"><span class="pre">make</span> <span class="pre">test</span></code> to run the test
<div class="highlight-cpp notranslate"><div class="highlight"><pre><span></span>$ perl Makefile.PL
Checking if your kit is complete...
Looks good
Writing Makefile for Botan
$ make
cp blib/lib/
AutoSplitting blib/lib/ (blib/lib/auto/Botan)
/usr/bin/perl5.8.8 /usr/lib64/perl5/5.8.8/ExtUtils/xsubpp  [...]
g++ -c   -Wno-write-strings -fexceptions  -g   [...]
Running Mkbootstrap for Botan ()
chmod 644
rm -f blib/arch/auto/Botan/
g++  -shared Botan.o  -o blib/arch/auto/Botan/  \
           -lbotan -lbz2 -lpthread -lrt -lz     \

chmod 755 blib/arch/auto/Botan/
cp blib/arch/auto/Botan/
chmod 644 blib/arch/auto/Botan/
Manifying blib/man3/Botan.3pm
$ make test
PERL_DL_NONLAZY=1 /usr/bin/perl5.8.8 [...]
All tests successful.
Files=6, Tests=83,  0 wallclock secs ( 0.08 cusr +  0.02 csys =  0.10 CPU)

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<li class="toctree-l1"><a class="reference internal" href="index.html">Welcome</a></li>
<li class="toctree-l1"><a class="reference internal" href="reading.html">Recommended Reading</a></li>
<li class="toctree-l1 current"><a class="current reference internal" href="#">Building The Library</a><ul>
<li class="toctree-l2"><a class="reference internal" href="#configuring-the-build">Configuring the Build</a></li>
<li class="toctree-l2"><a class="reference internal" href="#other-build-related-tasks">Other Build-Related Tasks</a></li>
<li class="toctree-l2"><a class="reference internal" href="#building-applications">Building Applications</a></li>
<li class="toctree-l2"><a class="reference internal" href="#language-wrappers">Language Wrappers</a></li>
<li class="toctree-l1"><a class="reference internal" href="firststep.html">Getting Started</a></li>
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