add missing ifdef and avoid "unused variable" warning

diff --git a/sapi/cgi/cgi_main.c b/sapi/cgi/cgi_main.c
index fed17648b04cdc01da0f463d1c715e87f48f7c5f..ddc601506492c014c9b6ecde623ec86ca88d7d8a 100644 (file)
--- a/sapi/cgi/cgi_main.c
+++ b/sapi/cgi/cgi_main.c
@@ -368,8 +368,10 @@ static char *sapi_cgibin_getenv(char *name, size_t name_len TSRMLS_DC)
 static char *_sapi_cgibin_putenv(char *name, char *value TSRMLS_DC)
 {
        int name_len;
+#if !HAVE_SETENV || !HAVE_UNSETENV
        int len;
        char *buf;
+#endif
 
        if (!name) {
                return NULL;