Ensure all *.[ch] files include config.h

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.

src/assignments.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "assignments.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/click.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "click.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/commands.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "commands.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -9,6 +7,8 @@
  * commands.c: all command functions (see commands_parser.c)
  *
  */
+#include "all.h"
+
 #include <stdint.h>
 #include <float.h>
 #include <stdarg.h>
@@ -17,7 +17,6 @@
 #include <sanitizer/lsan_interface.h>
 #endif
 
-#include "all.h"
 #include "shmlog.h"
 
 // Macros to make the YAJL API a bit easier to use.

src/commands_parser.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "commands_parser.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -25,6 +23,8 @@
  * instead of actually calling any function).
  *
  */
+#include "all.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -32,8 +32,6 @@
 #include <stdbool.h>
 #include <stdint.h>
 
-#include "all.h"
-
 // Macros to make the YAJL API a bit easier to use.
 #define y(x, ...) (command_output.json_gen != NULL ? yajl_gen_##x(command_output.json_gen, ##__VA_ARGS__) : 0)
 #define ystr(str) (command_output.json_gen != NULL ? yajl_gen_string(command_output.json_gen, (unsigned char *)str, strlen(str)) : 0)

src/con.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "con.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -12,6 +10,7 @@
  *
  */
 #include "all.h"
+
 #include "yajl_utils.h"
 
 static void con_on_remove_child(Con *con);

src/config.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "config.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -11,6 +9,7 @@
  *
  */
 #include "all.h"
+
 #include <xkbcommon/xkbcommon.h>
 
 char *current_configpath = NULL;

src/config_directives.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "config_directives.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -9,11 +7,11 @@
  * config_directives.c: all config storing functions (see config_parser.c)
  *
  */
+#include "all.h"
+
 #include <float.h>
 #include <stdarg.h>
 
-#include "all.h"
-
 /*******************************************************************************
  * Criteria functions.
  ******************************************************************************/

src/config_parser.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "config_parser.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -25,6 +23,8 @@
  *    nearest <error> token.
  *
  */
+#include "all.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -37,8 +37,6 @@
 #include <fcntl.h>
 #include <xcb/xcb_xrm.h>
 
-#include "all.h"
-
 // Macros to make the YAJL API a bit easier to use.
 #define y(x, ...) yajl_gen_##x(command_output.json_gen, ##__VA_ARGS__)
 #define ystr(str) yajl_gen_string(command_output.json_gen, (unsigned char *)str, strlen(str))

src/debug.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "debug.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -10,6 +8,8 @@
  *          events.  This code is from xcb-util.
  *
  */
+#include <config.h>
+
 #include <stdio.h>
 #include <xcb/xcb.h>
 

src/display_version.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "key_press.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -10,6 +8,8 @@
  *                    i3 --moreversion.
  *
  */
+#include "all.h"
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
@@ -17,7 +17,6 @@
 #include <sys/un.h>
 #include <fcntl.h>
 #include <time.h>
-#include "all.h"
 
 static bool human_readable_key, loaded_config_file_name_key;
 static char *human_readable_version, *loaded_config_file_name;

src/ewmh.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "ewmh.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/fake_outputs.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "fake_outputs.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/floating.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "floating.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/handlers.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "handlers.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/ipc.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "ipc.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -10,6 +8,7 @@
  *
  */
 #include "all.h"
+
 #include "yajl_utils.h"
 
 #include <stdint.h>

src/key_press.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "key_press.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/load_layout.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "load_layout.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/log.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "log.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -9,6 +7,8 @@
  * log.c: Logging functions.
  *
  */
+#include <config.h>
+
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>

src/main.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "main.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -9,6 +7,8 @@
  * main.c: Initialization, main loop
  *
  */
+#include "all.h"
+
 #include <ev.h>
 #include <fcntl.h>
 #include <sys/types.h>
@@ -19,7 +19,6 @@
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <libgen.h>
-#include "all.h"
 #include "shmlog.h"
 
 #include "sd-daemon.h"

src/manage.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "manage.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -10,6 +8,7 @@
  *
  */
 #include "all.h"
+
 #include "yajl_utils.h"
 
 #include <yajl/yajl_gen.h>

src/match.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "match.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/move.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "move.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/output.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "output.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/randr.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "randr.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/regex.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "regex.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/render.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "render.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/resize.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "resize.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/restore_layout.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "restore_layout.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/scratchpad.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "scratchpad.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/sighandler.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "sighandler.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/startup.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "startup.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -13,6 +11,7 @@
  *
  */
 #include "all.h"
+
 #include "sd-daemon.h"
 
 #include <sys/types.h>

src/tree.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "tree.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/util.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "util.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/version.c

@@ -8,4 +8,6 @@
  * and used dynamically without recompiling every object file.
  *
  */
+#include <config.h>
+
 const char *i3_version = I3_VERSION;

src/window.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "window.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/workspace.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "workspace.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/x.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "x.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/xcb.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "xcb.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *

src/xcursor.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "xcursor.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *
@@ -9,6 +7,8 @@
  * xcursor.c: xcursor support for themed cursors.
  *
  */
+#include <config.h>
+
 #include <assert.h>
 #include <xcb/xcb_cursor.h>
 

src/xinerama.c

@@ -1,5 +1,3 @@
-#undef I3__FILE__
-#define I3__FILE__ "xinerama.c"
 /*
  * vim:ts=4:sw=4:expandtab
  *