Implicitly include config.h in all files

The definitions in config.h should be available in all files an
implementation detail; it can be included through the build system
instead of having each file pull it every time.

This is especially helpful with AC_USE_SYSTEM_EXTENSIONS, as _GNU_SOURCE
and friends can have an effect by merely being defined, which can lead
to some confusion if its effective for only half the files.

And we don't really support a build _without_ config.h; so, one less
thing to worry about.

Signed-off-by: Ran Benita <ran234@gmail.com>

Makefile.am

@@ -22,7 +22,8 @@ AM_CPPFLAGS = \
 	-I$(top_srcdir)/include \
 	-I$(top_srcdir)/src \
 	-I$(top_srcdir)/src/xkbcomp \
-	-Isrc/xkbcomp
+	-Isrc/xkbcomp/ \
+	-include $(top_srcdir)/src/config.h
 
 AM_CFLAGS = \
 	$(BASE_CFLAGS) \

src/alloc.c

@@ -23,9 +23,6 @@ OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
 THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
 #include "utils.h"
 #include "xkballoc.h"
 #include "xkbcommon/xkbcommon.h"

src/atom.c

@@ -70,9 +70,6 @@ SOFTWARE.
 
  ********************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
 #include "xkbmisc.h"
 #include "xkbcommon/xkbcommon.h"
 #include "XKBcommonint.h"

src/context.c

@@ -23,10 +23,6 @@
  * Author: Daniel Stone <daniel@fooishbar.org>
  */
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <stdio.h>

src/keysym.c

@@ -25,9 +25,6 @@ sale, use or other dealings in this Software without prior written
 authorization from the authors.
 */
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>

src/map.c

@@ -49,10 +49,6 @@
  *
  * ********************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
 #include "utils.h"
 #include "xkbcommon/xkbcommon.h"
 #include "XKBcommonint.h"

src/maprules.c

@@ -24,9 +24,6 @@
 
  ********************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
 #include "utils.h"
 #include "xkbrules.h"
 #include "xkbcommon/xkbcommon.h"

src/misc.c

@@ -24,12 +24,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 ********************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <X11/X.h>
-
 #include "xkballoc.h"
 #include "xkbmisc.h"
 #include "xkbcommon/xkbcommon.h"

src/state.c

@@ -58,10 +58,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
  *   - messages (very unlikely)
  */
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
 #include <assert.h>
 
 #include "xkbcommon/xkbcommon.h"

src/text.c

@@ -24,9 +24,6 @@
 
  ********************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
 #include "xkbmisc.h"
 #include "xkbcommon/xkbcommon.h"
 #include "XKBcommonint.h"

src/utils.h

@@ -33,10 +33,6 @@
 #include <X11/Xdefs.h>
 #include <X11/Xfuncproto.h>
 
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
 extern void *
 recalloc(void *ptr, size_t old_size, size_t new_size);
 

src/xkb.c

@@ -24,9 +24,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 ********************************************************/
 
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
 #include <stdio.h>
 
 #include "xkbmisc.h"