--- httpd-2.2.22.original/modules/loggers/mod_log_config.c	2012-01-04 18:03:11.000000000 -0200
+++ httpd-2.2.22/modules/loggers/mod_log_config.c	2012-08-01 00:03:02.000000000 -0300
@@ -1120,6 +1120,21 @@
     return err_string;
 }
 
+static const char *ap_pstrftime(apr_pool_t *p, const char *format) {
+    size_t got, len = strlen(format) + 1;
+    const char *fp = strchr(format, '%');
+    char *buf = NULL;
+    apr_time_exp_t strftime_tm;
+    apr_time_exp_lt(&strftime_tm, apr_time_now());
+    while (NULL != fp) {
+        len += 10;
+        fp = strchr(fp + 1, '%');
+    }
+
+    buf = apr_palloc(p, len);
+    apr_strftime(buf, &got, len, format, &strftime_tm);
+    return buf;
+}
 
 static const char *add_custom_log(cmd_parms *cmd, void *dummy, const char *fn,
                                   const char *fmt, const char *envclause)
@@ -1142,7 +1157,7 @@
         cls->condition_var = apr_pstrdup(cmd->pool, &envclause[4]);
     }
 
-    cls->fname = fn;
+    cls->fname = apr_pstrdup(cmd->pool,ap_pstrftime(cmd->pool, fn));
     cls->format_string = fmt;
     if (fmt == NULL) {
         cls->format = NULL;