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

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• Hash : 49d6b5a8
  Author :
  Date : 2012-02-27T03:13:00
  

  modff-ieee: Work around test failures on *BSD, IRIX, OSF/1, etc.
  
  * m4/modff-ieee.m4: New file.
  * m4/modff.m4 (gl_FUNC_MODFF): If gl_FUNC_MODFF_IEEE is present, test
  whether modff works with NaN and Inf. Replace it if not.
  * lib/math.in.h (modff): Override if REPLACE_MODFF is 1.
  * m4/math_h.m4 (gl_MATH_H_DEFAULTS): Initialize REPLACE_MODFF.
  * modules/math (Makefile.am): Substitute REPLACE_MODFF.
  * modules/modff (configure.ac): Consider REPLACE_MODFF.
  (Depends-on): Update dependencies.
  * modules/modff-ieee (Files): Add m4/modff-ieee.m4, m4/minus-zero.m4,
  m4/signbit.m4.
  (Depends-on): Add modf-ieee.
  (configure.ac): Invoke gl_FUNC_MODFF_IEEE.
  * doc/posix-functions/modff.texi: Mention the modff-ieee module.
  

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• m4/modff-ieee.m4

• # modff-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 modff.m4 and not inlined in the
  dnl module description), so that gl_FUNC_MODFF can test whether 'aclocal' has
  dnl found uses of this macro.
  
  AC_DEFUN([gl_FUNC_MODFF_IEEE],
  [
    m4_divert_text([INIT_PREPARE], [gl_modff_required=ieee])
    AC_REQUIRE([gl_FUNC_MODFF])
  ])
  

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