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<title>1.5 Compilation and Linkage
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<H1><A NAME=
"SECTION003500000000000000000"></A><A NAME=
"compilation"></A>
1.5 Compilation and Linkage
There are two more things to do before you can use your new extension:
compiling and linking it with the Python system. If you use dynamic
loading, the details may depend on the style of dynamic loading your
system uses; see the chapters about building extension modules
(chapter
<A href=
"building.html#building">3</A>) and additional information that pertains only
to building on Windows (chapter
<A href=
"building-on-windows.html#building-on-windows">4</A>) for more
If you can't use dynamic loading, or if you want to make your module a
permanent part of the Python interpreter, you will have to change the
configuration setup and rebuild the interpreter. Luckily, this is
very simple on
<span class=
"Unix">Unix
</span>: just place your file (
<span class=
"file">spammodule.c
</span> for
example) in the
<span class=
"file">Modules/
</span> directory of an unpacked source
distribution, add a line to the file
<span class=
"file">Modules/Setup.local
</span>
<div class=
"verbatim"><pre>
and rebuild the interpreter by running
<b class=
"program">make
</b> in the toplevel
directory. You can also run
<b class=
"program">make
</b> in the
<span class=
"file">Modules/
</span>
subdirectory, but then you must first rebuild
<span class=
"file">Makefile
</span>
there by running `
<b class=
"program">make
</b> Makefile'. (This is necessary each
time you change the
<span class=
"file">Setup
</span> file.)
If your module requires additional libraries to link with, these can
be listed on the line in the configuration file as well, for instance:
<div class=
"verbatim"><pre>
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<span class=
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2.4.2, documentation updated on
28 September
2005.
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