From bfcbe7849b4b5a7cd4a3a5c8a950de621b67e9c3 Mon Sep 17 00:00:00 2001
From: Dmitry Stogov <dmitry@zend.com>
Date: Thu, 14 Feb 2013 10:01:29 +0400
Subject: [PATCH] Avoid compilation of unsupported SHM backends

---
 shared_alloc_mmap.c  |  8 ++++++--
 shared_alloc_posix.c |  8 ++++++--
 shared_alloc_shm.c   |  8 ++++++--
 zend_shared_alloc.c  |  6 +++---
 zend_shared_alloc.h  | 47 ++++++++++++++++++++++++++++++++------------
 5 files changed, 55 insertions(+), 22 deletions(-)

diff --git a/shared_alloc_mmap.c b/shared_alloc_mmap.c
index 7e23d4ea8d9..2a389c072cb 100644
--- a/shared_alloc_mmap.c
+++ b/shared_alloc_mmap.c
@@ -19,14 +19,16 @@
    +----------------------------------------------------------------------+
 */
 
+#include "zend_shared_alloc.h"
+
+#ifdef USE_MMAP
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/mman.h>
 
-#include "zend_shared_alloc.h"
-
 #if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
 # define MAP_ANONYMOUS MAP_ANON
 #endif
@@ -68,3 +70,5 @@ zend_shared_memory_handlers zend_alloc_mmap_handlers = {
 	detach_segment,
 	segment_type_size
 };
+
+#endif /* USE_MMAP */
diff --git a/shared_alloc_posix.c b/shared_alloc_posix.c
index 5a0111c797a..75ea176f41d 100644
--- a/shared_alloc_posix.c
+++ b/shared_alloc_posix.c
@@ -19,6 +19,10 @@
    +----------------------------------------------------------------------+
 */
 
+#include "zend_shared_alloc.h"
+
+#ifdef USE_SHM_OPEN
+
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <stdio.h>
@@ -27,8 +31,6 @@
 #include <unistd.h>
 #include <stdlib.h>
 
-#include "zend_shared_alloc.h"
-
 typedef struct  {
     zend_shared_segment common;
     int shm_fd;
@@ -88,3 +90,5 @@ zend_shared_memory_handlers zend_alloc_posix_handlers = {
 	(detach_segment_t)detach_segment,
 	segment_type_size
 };
+
+#endif /* USE_SHM_OPEN */
diff --git a/shared_alloc_shm.c b/shared_alloc_shm.c
index 45fab7c4a31..9d0256e4de6 100644
--- a/shared_alloc_shm.c
+++ b/shared_alloc_shm.c
@@ -19,6 +19,10 @@
    +----------------------------------------------------------------------+
 */
 
+#include "zend_shared_alloc.h"
+
+#ifdef USE_SHM
+
 #if defined(__FreeBSD__)
 # include <machine/param.h>
 #endif
@@ -35,8 +39,6 @@
 #include <sys/stat.h>
 #include <fcntl.h>
 
-#include "zend_shared_alloc.h"
-
 #ifndef MIN
 # define MIN(x, y) ((x) > (y)? (y) : (x))
 #endif
@@ -135,3 +137,5 @@ zend_shared_memory_handlers zend_alloc_shm_handlers = {
 	(detach_segment_t)detach_segment,
 	segment_type_size
 };
+
+#endif /* USE_SHM */
diff --git a/zend_shared_alloc.c b/zend_shared_alloc.c
index c0024c66660..3b93d041618 100644
--- a/zend_shared_alloc.c
+++ b/zend_shared_alloc.c
@@ -58,13 +58,13 @@ static char lockfile_name[sizeof(TMP_DIR)+sizeof(SEM_FILENAME_PREFIX)+8];
 #endif
 
 static const zend_shared_memory_handler_entry handler_table[] = {
-#if USE_MMAP
+#ifdef USE_MMAP
 	{ "mmap", &zend_alloc_mmap_handlers },
 #endif
-#if USE_SHM
+#ifdef USE_SHM
 	{ "shm", &zend_alloc_shm_handlers },
 #endif
-#if USE_SHM_OPEN
+#ifdef USE_SHM_OPEN
 	{ "posix", &zend_alloc_posix_handlers },
 #endif
 #ifdef ZEND_WIN32
diff --git a/zend_shared_alloc.h b/zend_shared_alloc.h
index aa615144524..12df673cf3c 100644
--- a/zend_shared_alloc.h
+++ b/zend_shared_alloc.h
@@ -23,23 +23,44 @@
 #define ZEND_SHARED_ALLOC_H
 
 #include "zend.h"
+#include "ZendAccelerator.h"
 
 #if defined(__APPLE__) && defined(__MACH__) /* darwin */
-# define USE_SHM_OPEN   1
-# define USE_MMAP       1
-#elif defined(__linux__) || defined(_AIX)
-# define USE_SHM        1
-# define USE_MMAP       1
-#elif defined(__FreeBSD__)
-# define USE_SHM_OPEN   1
-# define USE_MMAP       1
-# define USE_SHM        1
-#elif defined(__sparc) || defined(__sun)
-# define USE_SHM_OPEN   1
-# define USE_SHM        1
-# if defined(__i386)
+# ifdef HAVE_SHM_MMAP_POSIX
+#  define USE_SHM_OPEN  1
+# endif
+# ifdef HAVE_SHM_MMAP_ANON
 #  define USE_MMAP      1
 # endif
+#elif defined(__linux__) || defined(_AIX)
+# ifdef HAVE_SHM_IPC
+#  define USE_SHM       1
+# endif
+# ifdef HAVE_SHM_MMAP_ANON
+#  define USE_MMAP      1
+# endif
+#elif defined(__sparc) || defined(__sun)
+# ifdef HAVE_SHM_MMAP_POSIX
+#  define USE_SHM_OPEN  1
+# endif
+# ifdef HAVE_SHM_IPC
+#  define USE_SHM       1
+# endif
+# if defined(__i386)
+#  ifdef HAVE_SHM_MMAP_ANON
+#   define USE_MMAP     1
+#  endif
+# endif
+#else
+# ifdef HAVE_SHM_MMAP_POSIX
+#  define USE_SHM_OPEN  1
+# endif
+# ifdef HAVE_SHM_MMAP_ANON
+#  define USE_MMAP      1
+# endif
+# ifdef HAVE_SHM_IPC
+#  define USE_SHM       1
+# endif
 #endif
 
 #define ALLOC_FAILURE           0