diff --git a/Zend/zend.h b/Zend/zend.h
index 23cf6ad8310..8fb2726dcf0 100644
--- a/Zend/zend.h
+++ b/Zend/zend.h
@@ -40,10 +40,7 @@
 #include "zend_iterators.h"
 #include "zend_stream.h"
 #include "zend_smart_str_public.h"
-
-#ifdef ZEND_SIGNALS
-# include "zend_signal.h"
-#endif
+#include "zend_signal.h"
 
 #ifndef ZEND_SIGNALS
 /* block/unblock interruptions callbacks might be used by SAPI, and were used
@@ -52,7 +49,7 @@
 # define HANDLE_BLOCK_INTERRUPTIONS()
 # define HANDLE_UNBLOCK_INTERRUPTIONS()
 #else
-# define HANDLE_BLOCK_INTERRUPTIONS()		ZEND_SIGNAL_BLOCK_INTERRUPUTIONS()
+# define HANDLE_BLOCK_INTERRUPTIONS()		ZEND_SIGNAL_BLOCK_INTERRUPTIONS()
 # define HANDLE_UNBLOCK_INTERRUPTIONS()		ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS()
 #endif
 
diff --git a/Zend/zend_signal.c b/Zend/zend_signal.c
index b4f57415d5e..40dcd3bb0d2 100644
--- a/Zend/zend_signal.c
+++ b/Zend/zend_signal.c
@@ -48,7 +48,19 @@
 #ifdef ZTS
 ZEND_API int zend_signal_globals_id;
 #else
-zend_signal_globals_t zend_signal_globals;
+ZEND_API zend_signal_globals_t zend_signal_globals;
+#endif /* not ZTS */
+
+#define SIGNAL_BEGIN_CRITICAL() \
+	sigset_t oldmask; \
+	zend_sigprocmask(SIG_BLOCK, &global_sigmask, &oldmask);
+#define SIGNAL_END_CRITICAL() \
+	zend_sigprocmask(SIG_SETMASK, &oldmask, NULL);
+
+#ifdef ZTS
+# define zend_sigprocmask(signo, set, oldset) tsrm_sigmask((signo), (set), (oldset))
+#else
+# define zend_sigprocmask(signo, set, oldset) sigprocmask((signo), (set), (oldset))
 #endif
 
 static void zend_signal_handler(int signo, siginfo_t *siginfo, void *context);
@@ -338,7 +350,7 @@ static void zend_signal_globals_ctor(zend_signal_globals_t *zend_signal_globals)
 }
 /* }}} */
 
-void zend_signal_init() /* {{{ */
+void zend_signal_init(void) /* {{{ */
 {
 	int signo;
 	struct sigaction sa = {{0}};
@@ -360,7 +372,7 @@ void zend_signal_init() /* {{{ */
 
 /* {{{ zend_signal_startup
  * alloc zend signal globals */
-void zend_signal_startup()
+void zend_signal_startup(void)
 {
 
 #ifdef ZTS
diff --git a/Zend/zend_signal.h b/Zend/zend_signal.h
index 0c32db52a38..f9662b8d946 100644
--- a/Zend/zend_signal.h
+++ b/Zend/zend_signal.h
@@ -23,9 +23,11 @@
 #ifndef ZEND_SIGNAL_H
 #define ZEND_SIGNAL_H
 
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
-#endif
+#ifdef ZEND_SIGNALS
+
+# ifdef HAVE_SIGNAL_H
+#  include <signal.h>
+# endif
 
 #ifndef NSIG
 #define NSIG 65
@@ -63,39 +65,51 @@ typedef struct _zend_signal_globals_t {
 	zend_signal_queue_t pstorage[ZEND_SIGNAL_QUEUE_SIZE], *phead, *ptail, *pavail; /* pending queue */
 } zend_signal_globals_t;
 
-#ifdef ZTS
-# define SIGG(v) ZEND_TSRMG(zend_signal_globals_id, zend_signal_globals_t *, v)
+# ifdef ZTS
+#  define SIGG(v) ZEND_TSRMG(zend_signal_globals_id, zend_signal_globals_t *, v)
 BEGIN_EXTERN_C()
 ZEND_API extern int zend_signal_globals_id;
 END_EXTERN_C()
-# define ZEND_SIGNAL_BLOCK_INTERRUPUTIONS() if (EXPECTED(zend_signal_globals_id)) { SIGG(depth)++; }
-# define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (EXPECTED(zend_signal_globals_id) && UNEXPECTED(((SIGG(depth)--) == SIGG(blocked)))) { zend_signal_handler_unblock(); }
-#else /* ZTS */
-# define SIGG(v) (zend_signal_globals.v)
-extern ZEND_API zend_signal_globals_t zend_signal_globals;
-# define ZEND_SIGNAL_BLOCK_INTERRUPUTIONS()  SIGG(depth)++;
-# define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (((SIGG(depth)--) == SIGG(blocked))) { zend_signal_handler_unblock(); }
-#endif /* not ZTS */
+# else
+#  define SIGG(v) (zend_signal_globals.v)
+BEGIN_EXTERN_C()
+ZEND_API extern zend_signal_globals_t zend_signal_globals;
+END_EXTERN_C()
+# endif /* not ZTS */
 
-# define SIGNAL_BEGIN_CRITICAL() 	sigset_t oldmask; \
-	zend_sigprocmask(SIG_BLOCK, &global_sigmask, &oldmask);
-# define SIGNAL_END_CRITICAL()		zend_sigprocmask(SIG_SETMASK, &oldmask, NULL);
+# ifdef ZTS
+#  define ZEND_SIGNAL_BLOCK_INTERRUPTIONS() if (EXPECTED(zend_signal_globals_id)) { SIGG(depth)++; }
+#  define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (EXPECTED(zend_signal_globals_id) && UNEXPECTED(((SIGG(depth)--) == SIGG(blocked)))) { zend_signal_handler_unblock(); }
+# else /* ZTS */
+#  define ZEND_SIGNAL_BLOCK_INTERRUPTIONS()  SIGG(depth)++;
+#  define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS() if (((SIGG(depth)--) == SIGG(blocked))) { zend_signal_handler_unblock(); }
+# endif /* not ZTS */
 
-void zend_signal_handler_defer(int signo, siginfo_t *siginfo, void *context);
-ZEND_API void zend_signal_handler_unblock();
+ZEND_API void zend_signal_handler_unblock(void);
 void zend_signal_activate(void);
 void zend_signal_deactivate(void);
-void zend_signal_startup();
-void zend_signal_init();
+void zend_signal_startup(void);
+void zend_signal_init(void);
 void zend_signal_shutdown(void);
+
 ZEND_API int zend_signal(int signo, void (*handler)(int));
 ZEND_API int zend_sigaction(int signo, const struct sigaction *act, struct sigaction *oldact);
 
-#ifdef ZTS
-#define zend_sigprocmask(signo, set, oldset) tsrm_sigmask((signo), (set), (oldset))
-#else
-#define zend_sigprocmask(signo, set, oldset) sigprocmask((signo), (set), (oldset))
-#endif
+#else /* ZEND_SIGNALS */
+
+# define ZEND_SIGNAL_BLOCK_INTERRUPTIONS()
+# define ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS()
+
+# define zend_signal_activate()
+# define zend_signal_deactivate()
+# define zend_signal_startup()
+# define zend_signal_init()
+# define zend_signal_shutdown()
+
+# define zend_signal(signo, handler)           signal(signo, handler)
+# define zend_sigaction(signo, act, oldact)    sigaction(signo, act, oldact)
+
+#endif /* ZEND_SIGNALS */
 
 #endif /* ZEND_SIGNAL_H */
 
diff --git a/ext/pcntl/php_signal.c b/ext/pcntl/php_signal.c
index 7aa5d5a7c1e..a18e641d2a6 100644
--- a/ext/pcntl/php_signal.c
+++ b/ext/pcntl/php_signal.c
@@ -28,8 +28,7 @@
 Sigfunc *php_signal4(int signo, Sigfunc *func, int restart, int mask_all)
 {
 	struct sigaction act,oact;
-#ifdef ZEND_SIGNALS
-#endif
+
 	act.sa_handler = func;
 	if (mask_all) {
 		sigfillset(&act.sa_mask);
@@ -46,12 +45,7 @@ Sigfunc *php_signal4(int signo, Sigfunc *func, int restart, int mask_all)
 		act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */
 #endif
 	}
-#ifdef ZEND_SIGNALS
-	if (zend_sigaction(signo, &act, &oact) < 0)
-#else
-	if (sigaction(signo, &act, &oact) < 0)
-#endif
-	{
+	if (zend_sigaction(signo, &act, &oact) < 0) {
 		return SIG_ERR;
 	}
 
diff --git a/main/main.c b/main/main.c
index ad65483437d..00471e9c925 100644
--- a/main/main.c
+++ b/main/main.c
@@ -1597,9 +1597,7 @@ int php_request_startup(void)
 		zend_activate();
 		sapi_activate();
 
-#ifdef ZEND_SIGNALS
 		zend_signal_activate();
-#endif
 
 		if (PG(max_input_time) == -1) {
 			zend_set_timeout(EG(timeout_seconds), 1);
diff --git a/sapi/apache2handler/sapi_apache2.c b/sapi/apache2handler/sapi_apache2.c
index 456b9719fa4..6f6de422baa 100644
--- a/sapi/apache2handler/sapi_apache2.c
+++ b/sapi/apache2handler/sapi_apache2.c
@@ -456,9 +456,7 @@ php_apache_server_startup(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp
 	ZEND_TSRMLS_CACHE_UPDATE();
 #endif
 
-#ifdef ZEND_SIGNALS
 	zend_signal_startup();
-#endif
 
 	sapi_startup(&apache2_sapi_module);
 	apache2_sapi_module.startup(&apache2_sapi_module);
diff --git a/sapi/cgi/cgi_main.c b/sapi/cgi/cgi_main.c
index e758b33eeb8..e3398e03e05 100644
--- a/sapi/cgi/cgi_main.c
+++ b/sapi/cgi/cgi_main.c
@@ -1800,9 +1800,7 @@ int main(int argc, char *argv[])
 	ZEND_TSRMLS_CACHE_UPDATE();
 #endif
 
-#ifdef ZEND_SIGNALS
 	zend_signal_startup();
-#endif
 
 #ifdef ZTS
 	ts_allocate_id(&php_cgi_globals_id, sizeof(php_cgi_globals_struct), (ts_allocate_ctor) php_cgi_globals_ctor, NULL);
diff --git a/sapi/cli/php_cli.c b/sapi/cli/php_cli.c
index 09ce00f9e76..3c7a136f4ef 100644
--- a/sapi/cli/php_cli.c
+++ b/sapi/cli/php_cli.c
@@ -1230,9 +1230,7 @@ int main(int argc, char *argv[])
 	ZEND_TSRMLS_CACHE_UPDATE();
 #endif
 
-#ifdef ZEND_SIGNALS
 	zend_signal_startup();
-#endif
 
 #ifdef PHP_WIN32
 	_fmode = _O_BINARY;			/*sets default for file streams to binary */
diff --git a/sapi/embed/php_embed.c b/sapi/embed/php_embed.c
index 18c20272715..7cc4e6a1263 100644
--- a/sapi/embed/php_embed.c
+++ b/sapi/embed/php_embed.c
@@ -177,9 +177,7 @@ EMBED_SAPI_API int php_embed_init(int argc, char **argv)
   ZEND_TSRMLS_CACHE_UPDATE();
 #endif
 
-#ifdef ZEND_SIGNALS
 	zend_signal_startup();
-#endif
 
   sapi_startup(&php_embed_module);
 
diff --git a/sapi/fpm/fpm/fpm_main.c b/sapi/fpm/fpm/fpm_main.c
index 5adeb63b7a1..6dc8343fe6a 100644
--- a/sapi/fpm/fpm/fpm_main.c
+++ b/sapi/fpm/fpm/fpm_main.c
@@ -1612,9 +1612,7 @@ int main(int argc, char *argv[])
 	tsrm_ls = ts_resource(0);
 #endif
 
-#ifdef ZEND_SIGNALS
 	zend_signal_startup();
-#endif
 
 	sapi_startup(&cgi_sapi_module);
 	cgi_sapi_module.php_ini_path_override = NULL;
diff --git a/sapi/fpm/fpm/fpm_signals.c b/sapi/fpm/fpm/fpm_signals.c
index a637e69e719..8d0a4caf255 100644
--- a/sapi/fpm/fpm/fpm_signals.c
+++ b/sapi/fpm/fpm/fpm_signals.c
@@ -242,9 +242,7 @@ int fpm_signals_init_child() /* {{{ */
 		return -1;
 	}
 
-#ifdef ZEND_SIGNALS
 	zend_signal_init();
-#endif
 	return 0;
 }
 /* }}} */
diff --git a/sapi/litespeed/lsapi_main.c b/sapi/litespeed/lsapi_main.c
index 4dede3f7177..da7ca2c30c3 100644
--- a/sapi/litespeed/lsapi_main.c
+++ b/sapi/litespeed/lsapi_main.c
@@ -1007,9 +1007,7 @@ int main( int argc, char * argv[] )
     tsrm_startup(1, 1, 0, NULL);
 #endif
 
-#ifdef ZEND_SIGNALS
 	zend_signal_startup();
-#endif
 
     if (argc > 1 ) {
         if ( parse_opt( argc, argv, &climode,
diff --git a/sapi/phpdbg/phpdbg.c b/sapi/phpdbg/phpdbg.c
index 68a164c4992..e72b543a42e 100644
--- a/sapi/phpdbg/phpdbg.c
+++ b/sapi/phpdbg/phpdbg.c
@@ -1241,11 +1241,7 @@ void phpdbg_signal_handler(int sig, siginfo_t *info, void *context) /* {{{ */
 			}
 			is_handled = phpdbg_watchpoint_segfault_handler(info, context);
 			if (is_handled == FAILURE) {
-#ifdef ZEND_SIGNALS
 				zend_sigaction(sig, &PHPDBG_G(old_sigsegv_signal), NULL);
-#else
-				sigaction(sig, &PHPDBG_G(old_sigsegv_signal), NULL);
-#endif
 			}
 			break;
 	}
@@ -1342,9 +1338,7 @@ int main(int argc, char **argv) /* {{{ */
 	ZEND_TSRMLS_CACHE_UPDATE();
 #endif
 
-#ifdef ZEND_SIGNALS
 	zend_signal_startup();
-#endif
 
 phpdbg_main:
 	ini_entries = NULL;