Didn't see this documented anywhere, so...
If you want to do a full build of git on OS X including the manpages,
you need the asciidoc and xmlto packages. Both of them are available
from macports.org (formerly known as DarwinPorts) but out of the box,
they don't work quite right. If you try doing a "make doc", you get the
following error from xmlto:
I/O error : Attempt to load network entity
http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl
The superficial reason for that error is that xmlto is calling the
xsltproc utility with a command-line option that tells it to not fetch
documents from the network. If you edit xmlto and remove that option,
the doc build will work, but it will have to fetch a bunch of files from
SourceForge for every manpage, which is dog slow.
The real solution is to use local copies of the files it's trying to
fetch. These files are installed as part of one of the dependencies when
you install xmlto, but the install process doesn't tell the system where
to look for them! To use these local copies, you need to do two things.
First, create an XML catalog file. Typically it's called catalog.xml.
The contents should be:
<?xml version='1.0'?>
<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
<rewriteURI
uriStartString="http://docbook.sourceforge.net/release/xsl/current/";
rewritePrefix="file:///opt/local/share/xsl/docbook-xsl/" />
<rewriteURI uriStartString="http://www.oasis-open.org/docbook/xml/4.2/";
rewritePrefix="file:///opt/local/share/xml/docbook-xml/4.3/" />
</catalog>
Yes, that second rewriteURI maps the 4.2 docbook URI to the 4.3 version
-- blame the MacPorts packages, because that's what gets installed. The
mismatch doesn't appear to hurt anything. (If you're reading this from
the mailing list archive, MacPorts might have updated the packages since
I wrote this, so adjust the paths accordingly.)
Now you need to tell the system to use the file. You do that using the
XML_CATALOG_FILES environment variable, like so:
$ export XML_CATALOG_FILES=`pwd`/catalog.xml
$ make prefix=/opt/local doc
$ sudo make prefix=/opt/local install-doc
Annoying that it doesn't just work, but hopefully this will save someone
some Googling around.
-Steve
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