diff --git a/c/src/exec/posix/headers/threadsup.h b/c/src/exec/posix/headers/threadsup.h
index 26643445b4..e0cf294494 100644
--- a/c/src/exec/posix/headers/threadsup.h
+++ b/c/src/exec/posix/headers/threadsup.h
@@ -9,11 +9,13 @@
 #include <rtems/score/coresem.h>
 
 typedef struct {
+#if 0
   /*
    *  POSIX Interrupts 
    */
   unsigned32              interrupts_installed;
   CORE_semaphore_Control  Interrupt_Semaphore;
+#endif
 
   /*
    *  POSIX Cancelability 
diff --git a/c/src/exec/posix/include/rtems/posix/threadsup.h b/c/src/exec/posix/include/rtems/posix/threadsup.h
index 26643445b4..e0cf294494 100644
--- a/c/src/exec/posix/include/rtems/posix/threadsup.h
+++ b/c/src/exec/posix/include/rtems/posix/threadsup.h
@@ -9,11 +9,13 @@
 #include <rtems/score/coresem.h>
 
 typedef struct {
+#if 0
   /*
    *  POSIX Interrupts 
    */
   unsigned32              interrupts_installed;
   CORE_semaphore_Control  Interrupt_Semaphore;
+#endif
 
   /*
    *  POSIX Cancelability 
diff --git a/cpukit/posix/include/rtems/posix/threadsup.h b/cpukit/posix/include/rtems/posix/threadsup.h
index 26643445b4..e0cf294494 100644
--- a/cpukit/posix/include/rtems/posix/threadsup.h
+++ b/cpukit/posix/include/rtems/posix/threadsup.h
@@ -9,11 +9,13 @@
 #include <rtems/score/coresem.h>
 
 typedef struct {
+#if 0
   /*
    *  POSIX Interrupts 
    */
   unsigned32              interrupts_installed;
   CORE_semaphore_Control  Interrupt_Semaphore;
+#endif
 
   /*
    *  POSIX Cancelability