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diff --git a/gsl-1.9/ieee-utils/endian.c b/gsl-1.9/ieee-utils/endian.c
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+/* ieee-utils/endian.c
+ *
+ * Copyright (C) 1996, 1997, 1998, 1999, 2000 Brian Gough
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <config.h>
+#include <stdlib.h>
+#include <gsl/gsl_ieee_utils.h>
+
+static int little_endian_p (void) ;
+
+static int
+little_endian_p (void) {
+ /* Are we little or big endian? From Harbison & Steele. */
+ union
+ {
+ long l;
+ char c[sizeof (long)];
+ } u;
+ u.l = 1;
+ return (u.c[sizeof (long) - 1] == 1);
+}
+