fix build warnings for Haiku.

especially linker warning about php binary having an executable stack.

Author: devnexen

configure.ac

@@ -234,6 +234,14 @@ case $host_alias in
     ;;
 esac
 
+dnl to disable executable stack on haiku due
+dnl to missing elf .note.GNU-stack part
+case $host_alias in
+  *haiku*)
+    LDFLAGS="$LDFLAGS -Wl,-z,noexecstack"
+    ;;
+esac
+
 dnl Detect musl libc
 AC_MSG_CHECKING([whether we are using musl libc])
 if command -v ldd >/dev/null && ldd --version 2>&1 | grep ^musl >/dev/null 2>&1

ext/sockets/sockets.c

@@ -109,7 +109,9 @@ ZEND_DECLARE_MODULE_GLOBALS(sockets)
                 }											\
         } while (0)
 #else
-#define PHP_ETH_PROTO_CHECK(protocol, family) (0)
+#define PHP_ETH_PROTO_CHECK(protocol, family)								\
+	(void)protocol;											\
+	(void)family
 #endif
 
 static PHP_GINIT_FUNCTION(sockets);