fix compile warning

diff --git a/main/php_open_temporary_file.c b/main/php_open_temporary_file.c
index 60526fa0e496999513e93611407a5128259d974d..63f4e2c06b9ba87588cf6760c31f1fff3cf371c6 100644 (file)
--- a/main/php_open_temporary_file.c
+++ b/main/php_open_temporary_file.c
@@ -206,7 +206,7 @@ PHPAPI const char* php_get_temporary_directory(void)
 PHPAPI int php_open_temporary_fd(const char *dir, const char *pfx, char **opened_path_p TSRMLS_DC)
 {
        int fd;
-       char *temp_dir = php_get_temporary_directory();
+       const char *temp_dir = php_get_temporary_directory();
 
        if (!pfx) {
                pfx = "tmp.";