meson: always include config.h first, use -include

Seems like we've (tried) to fix this in the past, although it crept in
again. Just use a compiler directive and drop the error prone individual
includes.

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>

desc-defs.c

@@ -5,8 +5,6 @@
  * Copyright (C) 2017-2018 Michael Drake <michael.drake@codethink.co.uk>
  */
 
-#include "config.h"
-
 #include <stdbool.h>
 #include <stdlib.h>
 #include <stdio.h>

desc-dump.c

@@ -5,8 +5,6 @@
  * Copyright (C) 2017-2018 Michael Drake <michael.drake@codethink.co.uk>
  */
 
-#include "config.h"
-
 #include <stdbool.h>
 #include <assert.h>
 #include <string.h>

lsusb.c

@@ -6,7 +6,6 @@
  * Copyright (C) 2003-2005 David Brownell
  */
 
-#include "config.h"
 #include <stdint.h>
 #include <sys/stat.h>
 #include <fcntl.h>

meson.build

@@ -29,7 +29,9 @@ cc = meson.get_compiler('c')
 config = configuration_data()
 config.set_quoted('PACKAGE_NAME', meson.project_name())
 config.set_quoted('VERSION', meson.project_version())
-configure_file(output: 'config.h', configuration: config)
+config_h = configure_file(output: 'config.h', configuration: config)
+
+add_project_arguments('-include', 'config.h', language : 'c')
 
 # Build usbhid-dump in a subdir
 subdir('usbhid-dump')

names.c

@@ -20,7 +20,6 @@
 #include <libusb.h>
 #include <libudev.h>
 
-#include "config.h"
 #include "usb-spec.h"
 #include "names.h"
 #include "sysfs.h"

usbhid-dump/dev.c

@@ -5,8 +5,6 @@
  * Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
  */
 
-#include "config.h"
-
 #include "dev.h"
 #include <assert.h>
 #include <stdlib.h>

usbhid-dump/dev_list.c

@@ -5,8 +5,6 @@
  * Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
  */
 
-#include "config.h"
-
 #include "misc.h"
 #include "dev_list.h"
 #include <assert.h>

usbhid-dump/iface.c

@@ -5,8 +5,6 @@
  * Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
  */
 
-#include "config.h"
-
 #include "iface.h"
 #include <assert.h>
 #include <stdlib.h>

usbhid-dump/iface_list.c

@@ -5,8 +5,6 @@
  * Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
  */
 
-#include "config.h"
-
 #include "iface_list.h"
 #include "misc.h"
 #include <assert.h>

usbhid-dump/meson.build

@@ -1,8 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 # Copyright (c) 2024 Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 
-configure_file(output: 'config.h', configuration: config)
-
 sources = [
   'dev.c',
   'dev.h',

usbhid-dump/usbhid-dump.c

@@ -5,8 +5,6 @@
  * Copyright (C) 2010-2011 Nikolai Kondrashov <spbnick@gmail.com>
  */
 
-#include "config.h"
-
 #include "iface_list.h"
 #include "misc.h"
 #include <libusb.h>

usbmisc.c

@@ -12,7 +12,6 @@
 #include <iconv.h>
 #include <langinfo.h>
 
-#include "config.h"
 #include "usbmisc.h"
 
 /* ---------------------------------------------------------------------- */