In the FreeBSD POSIX locale, nl_langinfo(D_MD_ORDER) returns "md".

Index: ncal/ncal.c
--- ncal/ncal.c.orig
+++ ncal/ncal.c
@@ -506,9 +506,7 @@ usage(void)
 {
 
 	fputs(
-"Usage: cal [general options] [-hjy] [[month] year]\n"
-"       cal [general options] [-hj] [-m month] [year]\n"
-"       ncal [general options] [-hJjpwy] [-s country_code] [[month] year]\n"
+"Usage: ncal [general options] [-hJjpwy] [-s country_code] [[month] year]\n"
 "       ncal [general options] [-hJeo] [year]\n"
 "General options: [-NC3] [-A months] [-B months]\n"
 "For debug the highlighting: [-H yyyy-mm-dd] [-d yyyy-mm]\n",
@@ -547,7 +545,7 @@ printeaster(int y, int julian, int orthodox)
 	static int d_first = -1;
 
 	if (d_first < 0)
-		d_first = (*nl_langinfo(D_MD_ORDER) == 'd');
+		d_first = ("md"[0] == 'd');
 	/* force orthodox easter for years before 1583 */
 	if (y < 1583)
 		orthodox = 1;