Various cosmetic and consistency fixes.

[libserialport.git] / libserialport_internal.h

diff --git a/libserialport_internal.h b/libserialport_internal.h
index 9d8e41fe3cf7fe8402310c0173060c1c04ac00ab..d5ce00814fce5470f8d577852785af701131891d 100644 (file)
--- a/libserialport_internal.h
+++ b/libserialport_internal.h
@@ -18,10 +18,13 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#ifndef LIBSERIALPORT_LIBSERIALPORT_INTERNAL_H
+#define LIBSERIALPORT_LIBSERIALPORT_INTERNAL_H
+
 #include "config.h"
 
 #ifdef __linux__
-#define _BSD_SOURCE // for timeradd, timersub, timercmp
+#define _BSD_SOURCE /* For timeradd, timersub, timercmp. */
 #endif
 
 #include <string.h>
@@ -179,7 +182,7 @@ extern void (*sp_debug_handler)(const char *format, ...);
 #define RETURN() do { \
        DEBUG_FMT("%s returning", __func__); \
        return; \
-} while(0)
+} while (0)
 #define RETURN_CODE(x) do { \
        DEBUG_FMT("%s returning " #x, __func__); \
        return x; \
@@ -229,3 +232,5 @@ SP_PRIV struct sp_port **list_append(struct sp_port **list, const char *portname
 /* OS-specific Helper functions. */
 SP_PRIV enum sp_return get_port_details(struct sp_port *port);
 SP_PRIV enum sp_return list_ports(struct sp_port ***list);
+
+#endif