kc3-lang/gnulib/m4/modf-ieee.m4

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• Hash : b5cc9885
  Author :
  Date : 2012-02-27T01:44:57
  

  modf-ieee: Work around test failures on *BSD, IRIX, OSF/1, Cygwin.
  
  * m4/modf-ieee.m4: New file.
  * m4/modf.m4 (gl_FUNC_MODF): If gl_FUNC_MODF_IEEE is present, test
  whether modf works with NaN and Inf. Replace it if not.
  * lib/math.in.h (modf): New declaration.
  * lib/modf.c: New file.
  * m4/math_h.m4 (gl_MATH_H): Test whether modf is declared.
  (gl_MATH_H_DEFAULTS): Initialize GNULIB_MODF, REPLACE_MODF.
  * modules/math (Makefile.am): Substitute GNULIB_MODF, REPLACE_MODF.
  * modules/modf (Files): Add lib/modf.c.
  (Depends-on): Add math, isfinite, trunc, isinf.
  (configure.ac): Addrange to compile lib/modf.c if needed.
  * modules/modf-ieee (Files): Add m4/modf-ieee.m4, m4/minus-zero.m4,
  m4/signbit.m4.
  (configure.ac): Invoke gl_FUNC_MODF_IEEE.
  * tests/test-math-c++.cc: Check the declaration of modf.
  * doc/posix-functions/modf.texi: Mention the modf-ieee module.
  

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• m4/modf-ieee.m4

• # modf-ieee.m4 serial 1
  dnl Copyright (C) 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,
  dnl with or without modifications, as long as this notice is preserved.
  
  dnl This macro is in a separate file (not in modf.m4 and not inlined in the
  dnl module description), so that gl_FUNC_MODF can test whether 'aclocal' has
  dnl found uses of this macro.
  
  AC_DEFUN([gl_FUNC_MODF_IEEE],
  [
    m4_divert_text([INIT_PREPARE], [gl_modf_required=ieee])
    AC_REQUIRE([gl_FUNC_MODF])
  ])
  

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