setup.py: skip inotify if there's no inotify_add_watch
Debian Etch doesn't include a sys/inotify.h header, which makes it
impossible to compile _inotify.c, making hg uninstallable.
The cc.has_function() method is implemented by trying to compile a
simple C program. Since there's no redirection involved all error
messages are sent to the terminal. This is not particularly pretty
but at least it allows the installation to complete.
#header#
<title>#repo|escape#: files for changeset #node|short#</title>
</head>
<body>
<div class="buttons">
<a href="#url#log/#rev#{sessionvars%urlparameter}">changelog</a>
<a href="#url#shortlog/#rev#{sessionvars%urlparameter}">shortlog</a>
<a href="#url#tags{sessionvars%urlparameter}">tags</a>
<a href="#url#rev/#node|short#{sessionvars%urlparameter}">changeset</a>
#archives%archiveentry#
</div>
<h2>files for changeset #node|short#: #path|escape#</h2>
<table cellpadding="0" cellspacing="0">
<tr class="parity#upparity#">
<td><tt>drwxr-xr-x</tt>
<td>
<td>
<td><a href="#url#file/#node|short##up|urlescape#{sessionvars%urlparameter}">[up]</a>
</tr>
#dentries%direntry#
#fentries%fileentry#
</table>
#footer#