--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/components/php-5_3/APC/patches/04-apc_sem.c.patch	Thu May 31 14:36:45 2012 -0700
@@ -0,0 +1,32 @@
+--- APC-3.1.9/apc_sem.c_orig	Sat May 14 15:14:56 2011
++++ APC-3.1.9/apc_sem.c	Tue Dec 13 16:01:59 2011
+@@ -76,12 +76,16 @@
+     union semun arg;
+     key_t key = IPC_PRIVATE;
+ 
+-    if ((semid = semget(key, 1, IPC_CREAT | IPC_EXCL | perms)) >= 0) {
++    if ((semid = semget(key, 2, IPC_CREAT | IPC_EXCL | perms)) >= 0) {
+         /* sempahore created for the first time, initialize now */
+         arg.val = initval;
+         if (semctl(semid, 0, SETVAL, arg) < 0) {
+             apc_error("apc_sem_create: semctl(%d,...) failed:" TSRMLS_CC, semid);
+         }
++	arg.val = getpid();
++	if (semctl(semid, 1, SETVAL, arg) < 0) {
++	    apc_error("apc_sem_create: semctl(%d,...) failed:", TSRMLS_CC, semid);
++	}
+     }
+     else if (errno == EEXIST) {
+         /* sempahore already exists, don't initialize */
+@@ -101,7 +105,10 @@
+ {
+     /* we expect this call to fail often, so we do not check */
+     union semun arg;
+-    semctl(semid, 0, IPC_RMID, arg);
++    int semPid = semctl(semid, 1, GETVAL, 0);
++    if (semPid == getpid()) {
++        semctl(semid, 0, IPC_RMID, arg);
++    }
+ }
+ 
+ void apc_sem_lock(int semid TSRMLS_DC)