#endif
#ifndef ZEND_SIGNALS
-# define HANDLE_BLOCK_INTERRUPTIONS() if (zend_block_interruptions) { zend_block_interruptions(); }
-# define HANDLE_UNBLOCK_INTERRUPTIONS() if (zend_unblock_interruptions) { zend_unblock_interruptions(); }
+/* block/unblock interruptions callbacks might be used by SAPI, and were used
+ * by mod_php for Apache 1, but now they are not usefull anymore.
+ */
+# define HANDLE_BLOCK_INTERRUPTIONS() /*if (zend_block_interruptions) { zend_block_interruptions(); }*/
+# define HANDLE_UNBLOCK_INTERRUPTIONS() /*if (zend_unblock_interruptions) { zend_unblock_interruptions(); }*/
#else
# define HANDLE_BLOCK_INTERRUPTIONS() ZEND_SIGNAL_BLOCK_INTERRUPUTIONS()
# define HANDLE_UNBLOCK_INTERRUPTIONS() ZEND_SIGNAL_UNBLOCK_INTERRUPTIONS()