diff --git a/include/FreeRTOS_POSIX/errno.h b/include/FreeRTOS_POSIX/errno.h
index 136e04b..5ca3a32 100755
--- a/include/FreeRTOS_POSIX/errno.h
+++ b/include/FreeRTOS_POSIX/errno.h
@@ -36,6 +36,10 @@
 #ifndef _FREERTOS_POSIX_ERRNO_H_
 #define _FREERTOS_POSIX_ERRNO_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Undefine all errnos to avoid redefinition errors with system errnos. */
 #undef EPERM
 #undef ENOENT
@@ -92,4 +96,8 @@
 #endif
 /**@} */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_ERRNO_H_ */
diff --git a/include/FreeRTOS_POSIX/fcntl.h b/include/FreeRTOS_POSIX/fcntl.h
index 1e921ce..e1b41d4 100755
--- a/include/FreeRTOS_POSIX/fcntl.h
+++ b/include/FreeRTOS_POSIX/fcntl.h
@@ -33,6 +33,10 @@
 #ifndef _FREERTOS_POSIX_FCNTL_H_
 #define _FREERTOS_POSIX_FCNTL_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @name File creation flags for use in the oflag value to open() and openat().
  */
@@ -76,4 +80,8 @@
 #define O_WRONLY    0x8000  /**< Open for writing only. */
 /**@} */
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_FCNTL_H_ */
diff --git a/include/FreeRTOS_POSIX/mqueue.h b/include/FreeRTOS_POSIX/mqueue.h
index 7cbf01c..4a2b164 100755
--- a/include/FreeRTOS_POSIX/mqueue.h
+++ b/include/FreeRTOS_POSIX/mqueue.h
@@ -33,6 +33,10 @@
 #ifndef _FREERTOS_POSIX_MQUEUE_H_
 #define _FREERTOS_POSIX_MQUEUE_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* FreeRTOS+POSIX includes. */
 #include "FreeRTOS_POSIX/time.h"
 
@@ -247,4 +251,8 @@ int mq_timedsend( mqd_t mqdes,
  */
 int mq_unlink( const char * name );
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_MQUEUE_H_ */
diff --git a/include/FreeRTOS_POSIX/pthread.h b/include/FreeRTOS_POSIX/pthread.h
index 77f949a..f38dccf 100755
--- a/include/FreeRTOS_POSIX/pthread.h
+++ b/include/FreeRTOS_POSIX/pthread.h
@@ -33,6 +33,10 @@
 #ifndef _FREERTOS_POSIX_PTHREAD_H_
 #define _FREERTOS_POSIX_PTHREAD_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* FreeRTOS+POSIX includes. POSIX states that this header shall make symbols
  * defined in sched.h and time.h visible. */
 #include "FreeRTOS_POSIX/sched.h"
@@ -498,4 +502,8 @@ int pthread_setschedparam( pthread_t thread,
                            int policy,
                            const struct sched_param * param );
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _FREERTOS_POSIX_PTHREAD_H_ */
diff --git a/include/FreeRTOS_POSIX/sched.h b/include/FreeRTOS_POSIX/sched.h
index 5a72c44..b6e79e9 100755
--- a/include/FreeRTOS_POSIX/sched.h
+++ b/include/FreeRTOS_POSIX/sched.h
@@ -33,6 +33,10 @@
 #ifndef _FREERTOS_POSIX_SCHED_H_
 #define _FREERTOS_POSIX_SCHED_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @name Scheduling Policies
  */
@@ -81,4 +85,8 @@ int sched_get_priority_min( int policy );
  */
 int sched_yield( void );
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_SCHED_H_ */
diff --git a/include/FreeRTOS_POSIX/semaphore.h b/include/FreeRTOS_POSIX/semaphore.h
index fa1da91..661809a 100755
--- a/include/FreeRTOS_POSIX/semaphore.h
+++ b/include/FreeRTOS_POSIX/semaphore.h
@@ -37,6 +37,10 @@
 #include "FreeRTOS_POSIX/time.h"
 #include "FreeRTOS_POSIX_types.h"
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @brief Semaphore type.
  */
@@ -140,4 +144,8 @@ int sem_trywait( sem_t * sem );
  */
 int sem_wait( sem_t * sem );
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_SEMAPHORE_H_ */
diff --git a/include/FreeRTOS_POSIX/signal.h b/include/FreeRTOS_POSIX/signal.h
index 8f9cc6d..d99aa4a 100755
--- a/include/FreeRTOS_POSIX/signal.h
+++ b/include/FreeRTOS_POSIX/signal.h
@@ -37,6 +37,10 @@
 #ifndef _FREERTOS_POSIX_SIGNAL_H_
 #define _FREERTOS_POSIX_SIGNAL_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /**
  * @name Values of sigev_notify.
  */
@@ -67,4 +71,8 @@ struct sigevent
     pthread_attr_t * sigev_notify_attributes;         /**< Notification attributes. */
 };
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_SIGNAL_H_ */
diff --git a/include/FreeRTOS_POSIX/sys/types.h b/include/FreeRTOS_POSIX/sys/types.h
index 9cb3428..4a5e922 100755
--- a/include/FreeRTOS_POSIX/sys/types.h
+++ b/include/FreeRTOS_POSIX/sys/types.h
@@ -33,6 +33,10 @@
 #ifndef _FREERTOS_POSIX_TYPES_H_
 #define _FREERTOS_POSIX_TYPES_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* C standard library includes. */
 #include <stdint.h>
 
@@ -188,4 +192,8 @@ typedef void                         * pthread_barrierattr_t;
     typedef long int                 off_t;
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_TYPES_H_ */
diff --git a/include/FreeRTOS_POSIX/time.h b/include/FreeRTOS_POSIX/time.h
index d04de0f..d28336d 100755
--- a/include/FreeRTOS_POSIX/time.h
+++ b/include/FreeRTOS_POSIX/time.h
@@ -33,6 +33,10 @@
 #ifndef _FREERTOS_POSIX_TIME_H_
 #define _FREERTOS_POSIX_TIME_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* FreeRTOS+POSIX includes. */
 #include "FreeRTOS_POSIX/sys/types.h"
 #include "FreeRTOS_POSIX/signal.h"
@@ -255,4 +259,8 @@ int timer_settime( timer_t timerid,
                    const struct itimerspec * value,
                    struct itimerspec * ovalue );
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_TIME_H_ */
diff --git a/include/FreeRTOS_POSIX/unistd.h b/include/FreeRTOS_POSIX/unistd.h
index 3b8af22..a70a145 100755
--- a/include/FreeRTOS_POSIX/unistd.h
+++ b/include/FreeRTOS_POSIX/unistd.h
@@ -33,6 +33,10 @@
 #ifndef _FREERTOS_POSIX_UNISTD_H_
 #define _FREERTOS_POSIX_UNISTD_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #include "FreeRTOS_POSIX/sys/types.h"
 
 /**
@@ -58,4 +62,8 @@ unsigned sleep( unsigned seconds );
  */
 int usleep( useconds_t usec );
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_UNISTD_H_ */
diff --git a/include/FreeRTOS_POSIX/utils.h b/include/FreeRTOS_POSIX/utils.h
index c893a95..60306e6 100755
--- a/include/FreeRTOS_POSIX/utils.h
+++ b/include/FreeRTOS_POSIX/utils.h
@@ -31,6 +31,10 @@
 #ifndef _FREERTOS_POSIX_UTILS_
 #define _FREERTOS_POSIX_UTILS_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* C standard library includes. */
 #include <stdbool.h>
 #include <stdint.h>
@@ -152,4 +156,8 @@ int UTILS_TimespecCompare( const struct timespec * const x,
  */
 bool UTILS_ValidateTimespec( const struct timespec * const pxTimespec );
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* ifndef _FREERTOS_POSIX_UTILS_ */