diff --git a/c/src/exec/libcsupport/src/utsname.c b/c/src/exec/libcsupport/src/utsname.c
index 98b105023e..dba0fefefb 100644
--- a/c/src/exec/libcsupport/src/utsname.c
+++ b/c/src/exec/libcsupport/src/utsname.c
@@ -8,6 +8,7 @@
 
 #include <sys/utsname.h>
 
+#include <rtems/system.h>
 #include <rtems/score/system.h>
 #include <rtems/score/object.h>
 
diff --git a/c/src/exec/posix/src/aio.c b/c/src/exec/posix/src/aio.c
index 491c2772cf..d740be0c02 100644
--- a/c/src/exec/posix/src/aio.c
+++ b/c/src/exec/posix/src/aio.c
@@ -5,6 +5,8 @@
 
 #include <aio.h>
 
+#include <rtems/system.h>
+
 #ifdef NOT_IMPLEMENTED_YET
 
 /*PAGE
diff --git a/c/src/exec/posix/src/cancel.c b/c/src/exec/posix/src/cancel.c
index 2ad972c626..54cba95035 100644
--- a/c/src/exec/posix/src/cancel.c
+++ b/c/src/exec/posix/src/cancel.c
@@ -5,6 +5,8 @@
 
 #include <pthread.h>
 #include <errno.h>
+
+#include <rtems/system.h>
 #include <rtems/score/chain.h>
 #include <rtems/score/isr.h>
 #include <rtems/score/thread.h>
diff --git a/c/src/exec/posix/src/cond.c b/c/src/exec/posix/src/cond.c
index e20cfe5359..ce02fd7596 100644
--- a/c/src/exec/posix/src/cond.c
+++ b/c/src/exec/posix/src/cond.c
@@ -6,6 +6,7 @@
 #include <pthread.h>
 #include <errno.h>
 
+#include <rtems/system.h>
 #include <rtems/score/object.h>
 #include <rtems/score/states.h>
 #include <rtems/score/watchdog.h>
diff --git a/c/src/exec/posix/src/devctl.c b/c/src/exec/posix/src/devctl.c
index 6581e0296c..7caf475784 100644
--- a/c/src/exec/posix/src/devctl.c
+++ b/c/src/exec/posix/src/devctl.c
@@ -5,6 +5,8 @@
 
 #include <devctl.h>
 
+#include <rtems/system.h>
+
 #ifdef NOT_IMPLEMENTED_YET
 
 /*PAGE
diff --git a/c/src/exec/posix/src/intr.c b/c/src/exec/posix/src/intr.c
index 11fbe6969a..7f9c62964d 100644
--- a/c/src/exec/posix/src/intr.c
+++ b/c/src/exec/posix/src/intr.c
@@ -9,8 +9,9 @@
 
 #include <errno.h>
 #include <intr.h>
-
 #include <pthread.h>
+
+#include <rtems/system.h>
 #include <rtems/score/isr.h>
 #include <rtems/score/coresem.h>
 #include <rtems/score/thread.h>
diff --git a/c/src/exec/posix/src/key.c b/c/src/exec/posix/src/key.c
index 3bcc1b5170..fcfbd1715d 100644
--- a/c/src/exec/posix/src/key.c
+++ b/c/src/exec/posix/src/key.c
@@ -8,6 +8,7 @@
 #include <pthread.h>
 #include <string.h>
 
+#include <rtems/system.h>
 #include <rtems/score/thread.h>
 #include <rtems/score/wkspace.h>
 #include <rtems/posix/key.h>
diff --git a/c/src/exec/posix/src/mqueue.c b/c/src/exec/posix/src/mqueue.c
index e175300355..cde97bea2d 100644
--- a/c/src/exec/posix/src/mqueue.c
+++ b/c/src/exec/posix/src/mqueue.c
@@ -21,8 +21,8 @@
 #include <limits.h>
 #include <errno.h>
 #include <fcntl.h>
-
 #include <mqueue.h>
+
 #include <rtems/system.h>
 #include <rtems/score/watchdog.h>
 #include <rtems/posix/mqueue.h>
diff --git a/c/src/exec/posix/src/mutex.c b/c/src/exec/posix/src/mutex.c
index 9ff4acff99..1cb3f480c8 100644
--- a/c/src/exec/posix/src/mutex.c
+++ b/c/src/exec/posix/src/mutex.c
@@ -6,11 +6,10 @@
 #include <errno.h>
 #include <pthread.h>
 
-#include <rtems/score/system.h>
+#include <rtems/system.h>
 #include <rtems/score/coremutex.h>
 #include <rtems/score/watchdog.h>
 #include <rtems/score/mpci.h>
-
 #include <rtems/posix/mutex.h>
 #include <rtems/posix/priority.h>
 #include <rtems/posix/time.h>
diff --git a/c/src/exec/posix/src/psignal.c b/c/src/exec/posix/src/psignal.c
index 9ad7406e21..b8bd3d56ea 100644
--- a/c/src/exec/posix/src/psignal.c
+++ b/c/src/exec/posix/src/psignal.c
@@ -5,6 +5,7 @@
 
 #include <signal.h>
 
+#include <rtems/system.h>
 #include <rtems/score/thread.h>
 
 #ifdef NOT_IMPLEMENTED_YET
@@ -16,7 +17,7 @@
  */
 
 int kill(
-  int   pid_t,
+  pid_t pid,
   int   sig
 )
 {
diff --git a/c/src/exec/posix/src/pthread.c b/c/src/exec/posix/src/pthread.c
index 7247586685..79ea3271d2 100644
--- a/c/src/exec/posix/src/pthread.c
+++ b/c/src/exec/posix/src/pthread.c
@@ -7,6 +7,7 @@
 #include <pthread.h>
 #include <limits.h>
 
+#include <rtems/system.h>
 #include <rtems/score/stack.h>
 #include <rtems/score/thread.h>
 #include <rtems/posix/pthread.h>
@@ -188,13 +189,13 @@ int pthread_attr_getschedpolicy(
 
 int pthread_attr_setschedparam(
   pthread_attr_t            *attr,
-  const struct sched_param   param
+  const struct sched_param  *param
 )
 {
   if ( !attr || !attr->is_initialized )
     return EINVAL;
 
-  attr->schedparam = param;
+  attr->schedparam = *param;
   return 0;
 }
 
diff --git a/c/src/exec/posix/src/sched.c b/c/src/exec/posix/src/sched.c
index b131b52397..4cea4f5a3d 100644
--- a/c/src/exec/posix/src/sched.c
+++ b/c/src/exec/posix/src/sched.c
@@ -4,6 +4,8 @@
  */
 
 #include <sched.h>
+
+#include <rtems/system.h>
 #include <rtems/score/tod.h>
 #include <rtems/score/thread.h>
 #include <rtems/posix/priority.h>
diff --git a/c/src/exec/posix/src/time.c b/c/src/exec/posix/src/time.c
index cfe980793a..6c2faf65dc 100644
--- a/c/src/exec/posix/src/time.c
+++ b/c/src/exec/posix/src/time.c
@@ -4,6 +4,8 @@
  */
 
 #include <time.h>
+
+#include <rtems/system.h>
 #include <rtems/score/tod.h>
 
 /*
diff --git a/c/src/exec/posix/src/types.c b/c/src/exec/posix/src/types.c
index e6e743ade5..a3ba918a18 100644
--- a/c/src/exec/posix/src/types.c
+++ b/c/src/exec/posix/src/types.c
@@ -5,6 +5,8 @@
 
 #include <sys/types.h>
 
+#include <rtems/system.h>
+
 #ifdef NOT_IMPLEMENTED_YET
 
 /*PAGE
diff --git a/c/src/exec/posix/src/unistd.c b/c/src/exec/posix/src/unistd.c
index 909d89f923..f70d065ce3 100644
--- a/c/src/exec/posix/src/unistd.c
+++ b/c/src/exec/posix/src/unistd.c
@@ -5,6 +5,8 @@
 
 #include <unistd.h>
 
+#include <rtems/system.h>
+
 #ifdef NOT_IMPLEMENTED_YET
 
 /*
diff --git a/c/src/exec/posix/src/utsname.c b/c/src/exec/posix/src/utsname.c
index 98b105023e..dba0fefefb 100644
--- a/c/src/exec/posix/src/utsname.c
+++ b/c/src/exec/posix/src/utsname.c
@@ -8,6 +8,7 @@
 
 #include <sys/utsname.h>
 
+#include <rtems/system.h>
 #include <rtems/score/system.h>
 #include <rtems/score/object.h>
 
diff --git a/c/src/lib/libc/utsname.c b/c/src/lib/libc/utsname.c
index 98b105023e..dba0fefefb 100644
--- a/c/src/lib/libc/utsname.c
+++ b/c/src/lib/libc/utsname.c
@@ -8,6 +8,7 @@
 
 #include <sys/utsname.h>
 
+#include <rtems/system.h>
 #include <rtems/score/system.h>
 #include <rtems/score/object.h>
 
diff --git a/cpukit/libcsupport/src/utsname.c b/cpukit/libcsupport/src/utsname.c
index 98b105023e..dba0fefefb 100644
--- a/cpukit/libcsupport/src/utsname.c
+++ b/cpukit/libcsupport/src/utsname.c
@@ -8,6 +8,7 @@
 
 #include <sys/utsname.h>
 
+#include <rtems/system.h>
 #include <rtems/score/system.h>
 #include <rtems/score/object.h>
 
diff --git a/cpukit/posix/src/aio.c b/cpukit/posix/src/aio.c
index 491c2772cf..d740be0c02 100644
--- a/cpukit/posix/src/aio.c
+++ b/cpukit/posix/src/aio.c
@@ -5,6 +5,8 @@
 
 #include <aio.h>
 
+#include <rtems/system.h>
+
 #ifdef NOT_IMPLEMENTED_YET
 
 /*PAGE
diff --git a/cpukit/posix/src/cancel.c b/cpukit/posix/src/cancel.c
index 2ad972c626..54cba95035 100644
--- a/cpukit/posix/src/cancel.c
+++ b/cpukit/posix/src/cancel.c
@@ -5,6 +5,8 @@
 
 #include <pthread.h>
 #include <errno.h>
+
+#include <rtems/system.h>
 #include <rtems/score/chain.h>
 #include <rtems/score/isr.h>
 #include <rtems/score/thread.h>
diff --git a/cpukit/posix/src/cond.c b/cpukit/posix/src/cond.c
index e20cfe5359..ce02fd7596 100644
--- a/cpukit/posix/src/cond.c
+++ b/cpukit/posix/src/cond.c
@@ -6,6 +6,7 @@
 #include <pthread.h>
 #include <errno.h>
 
+#include <rtems/system.h>
 #include <rtems/score/object.h>
 #include <rtems/score/states.h>
 #include <rtems/score/watchdog.h>
diff --git a/cpukit/posix/src/devctl.c b/cpukit/posix/src/devctl.c
index 6581e0296c..7caf475784 100644
--- a/cpukit/posix/src/devctl.c
+++ b/cpukit/posix/src/devctl.c
@@ -5,6 +5,8 @@
 
 #include <devctl.h>
 
+#include <rtems/system.h>
+
 #ifdef NOT_IMPLEMENTED_YET
 
 /*PAGE
diff --git a/cpukit/posix/src/intr.c b/cpukit/posix/src/intr.c
index 11fbe6969a..7f9c62964d 100644
--- a/cpukit/posix/src/intr.c
+++ b/cpukit/posix/src/intr.c
@@ -9,8 +9,9 @@
 
 #include <errno.h>
 #include <intr.h>
-
 #include <pthread.h>
+
+#include <rtems/system.h>
 #include <rtems/score/isr.h>
 #include <rtems/score/coresem.h>
 #include <rtems/score/thread.h>
diff --git a/cpukit/posix/src/key.c b/cpukit/posix/src/key.c
index 3bcc1b5170..fcfbd1715d 100644
--- a/cpukit/posix/src/key.c
+++ b/cpukit/posix/src/key.c
@@ -8,6 +8,7 @@
 #include <pthread.h>
 #include <string.h>
 
+#include <rtems/system.h>
 #include <rtems/score/thread.h>
 #include <rtems/score/wkspace.h>
 #include <rtems/posix/key.h>
diff --git a/cpukit/posix/src/mqueue.c b/cpukit/posix/src/mqueue.c
index e175300355..cde97bea2d 100644
--- a/cpukit/posix/src/mqueue.c
+++ b/cpukit/posix/src/mqueue.c
@@ -21,8 +21,8 @@
 #include <limits.h>
 #include <errno.h>
 #include <fcntl.h>
-
 #include <mqueue.h>
+
 #include <rtems/system.h>
 #include <rtems/score/watchdog.h>
 #include <rtems/posix/mqueue.h>
diff --git a/cpukit/posix/src/mutex.c b/cpukit/posix/src/mutex.c
index 9ff4acff99..1cb3f480c8 100644
--- a/cpukit/posix/src/mutex.c
+++ b/cpukit/posix/src/mutex.c
@@ -6,11 +6,10 @@
 #include <errno.h>
 #include <pthread.h>
 
-#include <rtems/score/system.h>
+#include <rtems/system.h>
 #include <rtems/score/coremutex.h>
 #include <rtems/score/watchdog.h>
 #include <rtems/score/mpci.h>
-
 #include <rtems/posix/mutex.h>
 #include <rtems/posix/priority.h>
 #include <rtems/posix/time.h>
diff --git a/cpukit/posix/src/psignal.c b/cpukit/posix/src/psignal.c
index 9ad7406e21..b8bd3d56ea 100644
--- a/cpukit/posix/src/psignal.c
+++ b/cpukit/posix/src/psignal.c
@@ -5,6 +5,7 @@
 
 #include <signal.h>
 
+#include <rtems/system.h>
 #include <rtems/score/thread.h>
 
 #ifdef NOT_IMPLEMENTED_YET
@@ -16,7 +17,7 @@
  */
 
 int kill(
-  int   pid_t,
+  pid_t pid,
   int   sig
 )
 {
diff --git a/cpukit/posix/src/pthread.c b/cpukit/posix/src/pthread.c
index 7247586685..79ea3271d2 100644
--- a/cpukit/posix/src/pthread.c
+++ b/cpukit/posix/src/pthread.c
@@ -7,6 +7,7 @@
 #include <pthread.h>
 #include <limits.h>
 
+#include <rtems/system.h>
 #include <rtems/score/stack.h>
 #include <rtems/score/thread.h>
 #include <rtems/posix/pthread.h>
@@ -188,13 +189,13 @@ int pthread_attr_getschedpolicy(
 
 int pthread_attr_setschedparam(
   pthread_attr_t            *attr,
-  const struct sched_param   param
+  const struct sched_param  *param
 )
 {
   if ( !attr || !attr->is_initialized )
     return EINVAL;
 
-  attr->schedparam = param;
+  attr->schedparam = *param;
   return 0;
 }
 
diff --git a/cpukit/posix/src/sched.c b/cpukit/posix/src/sched.c
index b131b52397..4cea4f5a3d 100644
--- a/cpukit/posix/src/sched.c
+++ b/cpukit/posix/src/sched.c
@@ -4,6 +4,8 @@
  */
 
 #include <sched.h>
+
+#include <rtems/system.h>
 #include <rtems/score/tod.h>
 #include <rtems/score/thread.h>
 #include <rtems/posix/priority.h>
diff --git a/cpukit/posix/src/time.c b/cpukit/posix/src/time.c
index cfe980793a..6c2faf65dc 100644
--- a/cpukit/posix/src/time.c
+++ b/cpukit/posix/src/time.c
@@ -4,6 +4,8 @@
  */
 
 #include <time.h>
+
+#include <rtems/system.h>
 #include <rtems/score/tod.h>
 
 /*
diff --git a/cpukit/posix/src/types.c b/cpukit/posix/src/types.c
index e6e743ade5..a3ba918a18 100644
--- a/cpukit/posix/src/types.c
+++ b/cpukit/posix/src/types.c
@@ -5,6 +5,8 @@
 
 #include <sys/types.h>
 
+#include <rtems/system.h>
+
 #ifdef NOT_IMPLEMENTED_YET
 
 /*PAGE