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.
#!/bin/sh
mkdir test
cd test
echo foo>foo
hg init
hg addremove
hg commit -m 1
hg verify
hg serve -p $HGPORT -d --pid-file=hg.pid
cat hg.pid >> $DAEMON_PIDS
cd ..
http_proxy= hg clone --pull http://localhost:$HGPORT/ copy | sed -e 's,:[0-9][0-9]*/,/,'
cd copy
hg verify
hg co
cat foo
hg manifest --debug
hg pull | sed -e 's,:[0-9][0-9]*/,/,'
echo % issue 622
cd ..
hg init empty
cd empty
hg pull -u ../test