in modules/fcgid/fcgid_conf.c [560:571]
static void add_envvar_to_table(apr_table_t *t, apr_pool_t *p,
const char *name, const char *value)
{
#if defined(WIN32) || defined(OS2) || defined(NETWARE)
/* Case insensitive environment platforms */
char *pstr;
for (name = pstr = apr_pstrdup(p, name); *pstr; ++pstr) {
*pstr = apr_toupper(*pstr);
}
#endif
apr_table_set(t, name, value ? value : "");
}