Build: Include config.h first in all source files

configure.ac

@@ -33,16 +33,11 @@ AC_CONFIG_HEADERS([config.h libserialport.h])
 AC_CONFIG_MACRO_DIR([autostuff])
 AC_CONFIG_AUX_DIR([autostuff])
 
-AH_TOP([#ifndef SP_CONFIG_H
-#define SP_CONFIG_H])
-
 AH_BOTTOM([#if HAVE_STRUCT_TERMIOS_C_ISPEED && HAVE_STRUCT_TERMIOS_C_OSPEED
 # define HAVE_TERMIOS_SPEED 1
 #endif
 #if HAVE_STRUCT_TERMIOS2_C_ISPEED && HAVE_STRUCT_TERMIOS2_C_OSPEED
 # define HAVE_TERMIOS2_SPEED 1
-#endif
-
 #endif])
 
 # We require at least automake 1.11 (needed for 'silent rules').

freebsd.c

@@ -76,6 +76,7 @@
  *    device description.
  */
 
+#include <config.h>
 #include <unistd.h>
 #include <stdint.h>
 #include <stdlib.h>

libserialport_internal.h

@@ -21,7 +21,6 @@
 #ifndef LIBSERIALPORT_LIBSERIALPORT_INTERNAL_H
 #define LIBSERIALPORT_LIBSERIALPORT_INTERNAL_H
 
-#include <config.h>
 
 #ifdef __linux__
 #define _BSD_SOURCE /* For timeradd, timersub, timercmp. */

linux.c

@@ -18,6 +18,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include "libserialport.h"
 #include "libserialport_internal.h"
 

linux_termios.c

@@ -33,6 +33,7 @@
  * TCSETX/TCGETX ioctls used with struct termiox, others do not.
  */
 
+#include <config.h>
 #include <stdlib.h>
 #include <linux/termios.h>
 #include "linux_termios.h"

linux_termios.h

@@ -21,7 +21,6 @@
 #define LIBSERIALPORT_LINUX_TERMIOS_H
 
 #include <stdlib.h>
-#include "config.h"
 
 SP_PRIV unsigned long get_termios_get_ioctl(void);
 SP_PRIV unsigned long get_termios_set_ioctl(void);

macosx.c

@@ -18,6 +18,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include "libserialport.h"
 #include "libserialport_internal.h"
 

serialport.c

@@ -21,6 +21,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include "libserialport.h"
 #include "libserialport_internal.h"
 

windows.c

@@ -18,6 +18,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <config.h>
 #include "libserialport.h"
 #include "libserialport_internal.h"