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Expand section on building gccgo.

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R=r
http://go/go-review/1026008
This commit is contained in:
Ian Lance Taylor 2009-11-06 14:16:47 -08:00
parent 2528f33535
commit 8c40900fc2
1 changed files with 25 additions and 4 deletions
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29
doc/go_gccgo_setup.html
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@ -8,10 +8,13 @@ Like <code>gcc</code> itself, <code>gccgo</code> is free software
distributed under
the <a href="http://www.gnu.org/licenses/gpl.html">GNU General Public
License</a>.
</p>
<p>
Note that <code>gccgo</code> is not the <code>6g</code> compiler; see
the <a href="install.html"><code>6g</code> set up</a> instructions
for that compiler.
the <a href="install.html">Installing Go</a> instructions for that
compiler.
</p>
<h2 id="Source_code">Source code</h2>
@ -22,6 +25,7 @@ has <a href="http://gcc.gnu.org/svn.html">instructions for getting the
<code>gcc</code> source code</a>. The <code>gccgo</code> source code
is a branch of the main <code>gcc</code> code
repository: <code>svn://gcc.gnu.org/svn/gcc/branches/gccgo</code>.
</p>
<h2 id="Building">Building</h2>
@ -32,6 +36,23 @@ the <a href="http://gcc.gnu.org/install/">instructions on the gcc web
site</a>. When you run <code>configure</code>, add the
option <code>--enable-languages=go</code> (along with other languages you
may want to build).
</p>
<p>
A number of prerequisites are required to build <code>gcc</code>, as
described on the <code>gcc</code> web site. If those are all
available, then a typical build and install sequence would look like
this:
<pre>
svn checkout svn://gcc.gnu.org/svn/gcc/branches/gccgo gccgo
mkdir objdir
cd objdir
../gccgo/configure --enable-languages=c,c++,go
make
make install
</pre>
</p>
<h2 id="Using_gccgo">Using gccgo</h2>
@ -123,7 +144,7 @@ may pass the <code>-I</code> or <code>-L</code> option to
<code>gccgo</code>. Both options take directories to search. The
<code>-L</code> option is also passed to the linker.
The <code>gccgo</code> compiler does not currently (2009-10-14) record
The <code>gccgo</code> compiler does not currently (2009-11-06) record
the file name of imported packages in the object file. You must
arrange for the imported data to be linked into the program.
@ -137,7 +158,7 @@ gccgo -o main main.o mypackage.o # Explicitly links with mypackage.o
<p>
Some Go features are not yet implemented in <code>gccgo</code>. As of
2009-10-14, the following are not implemented:
2009-11-06, the following are not implemented:
<ul>
<li>Garbage collection is not implemented. There is no way to free memory.