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<h5 class="subsubsection">6.3.8.3 The Front End <samp><span class="file">Make-lang.in</span></samp> File</h5>
<p>Each language subdirectory contains a <samp><span class="file">Make-lang.in</span></samp> file. It contains
targets <var>lang</var><code>.</code><var>hook</var> (where <var>lang</var> is the
setting of <code>language</code> in <samp><span class="file">config-lang.in</span></samp>) for the following
values of <var>hook</var>, and any other Makefile rules required to
build those targets (which may if necessary use other Makefiles
specified in <code>outputs</code> in <samp><span class="file">config-lang.in</span></samp>, although this is
deprecated). It also adds any testsuite targets that can use the
standard rule in <samp><span class="file">gcc/Makefile.in</span></samp> to the variable
<code>lang_checks</code>.
<dl>
<dt><code>all.cross</code><dt><code>start.encap</code><dt><code>rest.encap</code><dd>FIXME: exactly what goes in each of these targets?
<br><dt><code>tags</code><dd>Build an <samp><span class="command">etags</span></samp> <samp><span class="file">TAGS</span></samp> file in the language subdirectory
in the source tree.
<br><dt><code>info</code><dd>Build info documentation for the front end, in the build directory.
This target is only called by ‘<samp><span class="samp">make bootstrap</span></samp>’ if a suitable
version of <samp><span class="command">makeinfo</span></samp> is available, so does not need to check
for this, and should fail if an error occurs.
<br><dt><code>dvi</code><dd>Build DVI documentation for the front end, in the build directory.
This should be done using <code>$(TEXI2DVI)</code>, with appropriate
<samp><span class="option">-I</span></samp> arguments pointing to directories of included files.
<br><dt><code>pdf</code><dd>Build PDF documentation for the front end, in the build directory.
This should be done using <code>$(TEXI2PDF)</code>, with appropriate
<samp><span class="option">-I</span></samp> arguments pointing to directories of included files.
<br><dt><code>html</code><dd>Build HTML documentation for the front end, in the build directory.
<br><dt><code>man</code><dd>Build generated man pages for the front end from Texinfo manuals
(see <a href="Man-Page-Generation.html#Man-Page-Generation">Man Page Generation</a>), in the build directory. This target
is only called if the necessary tools are available, but should ignore
errors so as not to stop the build if errors occur; man pages are
optional and the tools involved may be installed in a broken way.
<br><dt><code>install-common</code><dd>Install everything that is part of the front end, apart from the
compiler executables listed in <code>compilers</code> in
<samp><span class="file">config-lang.in</span></samp>.
<br><dt><code>install-info</code><dd>Install info documentation for the front end, if it is present in the
source directory. This target should have dependencies on info files
that should be installed.
<br><dt><code>install-man</code><dd>Install man pages for the front end. This target should ignore
errors.
<br><dt><code>install-plugin</code><dd>Install headers needed for plugins.
<br><dt><code>srcextra</code><dd>Copies its dependencies into the source directory. This generally should
be used for generated files such as Bison output files which are not
version-controlled, but should be included in any release tarballs. This
target will be executed during a bootstrap if
‘<samp><span class="samp">--enable-generated-files-in-srcdir</span></samp>’ was specified as a
<samp><span class="file">configure</span></samp> option.
<br><dt><code>srcinfo</code><dt><code>srcman</code><dd>Copies its dependencies into the source directory. These targets will be
executed during a bootstrap if ‘<samp><span class="samp">--enable-generated-files-in-srcdir</span></samp>’
was specified as a <samp><span class="file">configure</span></samp> option.
<br><dt><code>uninstall</code><dd>Uninstall files installed by installing the compiler. This is
currently documented not to be supported, so the hook need not do
anything.
<br><dt><code>mostlyclean</code><dt><code>clean</code><dt><code>distclean</code><dt><code>maintainer-clean</code><dd>The language parts of the standard GNU
‘<samp><span class="samp">*clean</span></samp>’ targets. See <a href="../standards/Standard-Targets.html#Standard-Targets">Standard Targets for Users</a>, for details of the standard
targets. For GCC, <code>maintainer-clean</code> should delete
all generated files in the source directory that are not version-controlled,
but should not delete anything that is.
</dl>
<p><samp><span class="file">Make-lang.in</span></samp> must also define a variable <var>lang</var><code>_OBJS</code>
to a list of host object files that are used by that language.
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