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diff m4/math_h.m4 @ 16587:d71dacc1f7e0

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Work around expm1f bug on IRIX 6.5. * lib/math.in.h (expm1f): Override if REPLACE_EXPM1F is 1. * m4/expm1f.m4 (gl_FUNC_EXPM1F_WORKS): New macro. (gl_FUNC_EXPM1F): Invoke it. Set REPLACE_EXPM1F to 1 if expm1f() does not work. * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_EXPM1F. * modules/math (Makefile.am): Substitute REPLACE_EXPM1F. * modules/expm1f (configure.ac): Consider REPLACE_EXPM1F. (Depends-on): Update conditions. * doc/posix-functions/expm1f.texi: Mention the IRIX 6.5 bug.
author Bruno Haible <bruno@clisp.org>
date Tue, 06 Mar 2012 23:25:51 +0100
parents e9d32ad2396a
children 6312b64c2c23
line wrap: on
line diff
--- a/m4/math_h.m4
+++ b/m4/math_h.m4
@@ -1,4 +1,4 @@
-# math_h.m4 serial 82
+# math_h.m4 serial 83
 dnl Copyright (C) 2007-2012 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -227,6 +227,7 @@
   REPLACE_CEIL=0;              AC_SUBST([REPLACE_CEIL])
   REPLACE_CEILF=0;             AC_SUBST([REPLACE_CEILF])
   REPLACE_CEILL=0;             AC_SUBST([REPLACE_CEILL])
+  REPLACE_EXPM1F=0;            AC_SUBST([REPLACE_EXPM1F])
   REPLACE_FABSL=0;             AC_SUBST([REPLACE_FABSL])
   REPLACE_FLOOR=0;             AC_SUBST([REPLACE_FLOOR])
   REPLACE_FLOORF=0;            AC_SUBST([REPLACE_FLOORF])