Including config.h is necessary to get e.g. the _GNU_SOURCE define and
any other definitions that autoconf declares. Hence, config.h needs to
be included as the first header in each file.
This is done either via:
1. Including "common.h" (i3bar)
2. Including "libi3.h"
3. Including "all.h" (i3)
4. Including <config.h> directly
Also remove now-unused I3__FILE__, add copyright/license statement
where missing and switch include/all.h to #pragma once.
* common.mk: use -lsocket -liconv -lgen on Illumos/Solaris
* mkdirp: return int and accept a mode argument
* use i3's mkdirp on everything except Illumos
If I restart i3 4.10.2 twice, e.g. with
$ i3-msg restart; sleep 3; i3-msg restart
the second time I get the following two errors:
05/22/15 10:46:03 - ERROR: mkdir(/tmp/i3-theo.toAK7N) failed: File exists
05/22/15 10:46:03 - ERROR: Could not create "/tmp/i3-theo.toAK7N" for storing the restart layout, layout will be lost.
The first one is from mkdirp() in src/ipc.c and the second one is from
store_restart_layout() in src/util.c.
Notice that I do _not_ get the ``open()'' or ``Could not write restart layout to
...'' error messages, so the layout writing code after line 260 in
store_restart_layout() succeeded and the layout isn't actually lost. Thus,
these error messages are a bit misleading, especially the second one (which is
triggered by the failure of mkdirp()).
POSIX says about `mkdir -p':
``Each dir operand that names an existing directory shall be ignored without
error.''
Therefore, I suggest the following simple patch that makes mkdirp() succeed if
the named file exists and actually is a directory. This silences the second
error as well.
Michael Stapelberg