Fix [-Wundef] warning in PDO PostgreSQL extension

Author: Girgias

ext/pdo_pgsql/pgsql_driver.c

@@ -156,7 +156,7 @@ static int pgsql_lob_seek(php_stream *stream, zend_off_t offset, int whence,
 		zend_off_t *newoffset)
 {
 	struct pdo_pgsql_lob_self *self = (struct pdo_pgsql_lob_self*)stream->abstract;
-#if HAVE_PG_LO64 && ZEND_ENABLE_ZVAL_LONG64
+#if defined(HAVE_PG_LO64) && defined(ZEND_ENABLE_ZVAL_LONG64)
 	zend_off_t pos = lo_lseek64(self->conn, self->lfd, offset, whence);
 #else
 	zend_off_t pos = lo_lseek(self->conn, self->lfd, offset, whence);
@@ -1060,7 +1060,7 @@ static PHP_METHOD(PDO, pgsqlGetNotify)
 	if (ms_timeout < 0) {
 		php_error_docref(NULL, E_WARNING, "Invalid timeout");
  		RETURN_FALSE;
-#if ZEND_ENABLE_ZVAL_LONG64
+#ifdef ZEND_ENABLE_ZVAL_LONG64
 	} else if (ms_timeout > INT_MAX) {
 		php_error_docref(NULL, E_WARNING, "Timeout was shrunk to %d", INT_MAX);
 		ms_timeout = INT_MAX;

ext/pdo_pgsql/pgsql_statement.c

@@ -27,7 +27,7 @@
 #include "pdo/php_pdo_driver.h"
 #include "php_pdo_pgsql.h"
 #include "php_pdo_pgsql_int.h"
-#if HAVE_NETINET_IN_H
+#ifdef HAVE_NETINET_IN_H
 #include <netinet/in.h>
 #endif