kc3-lang/gnulib/m4/atanf.m4

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• Hash : a5766f2b
  Author :
  Date : 2011-10-08T23:55:44
  

  New module 'atanf'.
  
  * lib/math.in.h (atanf): New declaration.
  * lib/atanf.c: New file.
  * m4/atanf.m4: New file.
  * m4/math_h.m4 (gl_MATH_H): Test whether atanf is declared.
  (gl_MATH_H_DEFAULTS): Initialize GNULIB_ATANF, HAVE_ATANF.
  * modules/math (Makefile.am): Substitute GNULIB_ATANF, HAVE_ATANF.
  * modules/atanf: New file.
  * tests/test-math-c++.cc: Check the declaration of atanf.
  * doc/posix-functions/atanf.texi: Mention the new module.
  

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• m4/atanf.m4

• # atanf.m4 serial 1
  dnl Copyright (C) 2011 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.
  
  AC_DEFUN([gl_FUNC_ATANF],
  [
    AC_REQUIRE([gl_MATH_H_DEFAULTS])
    AC_REQUIRE([gl_FUNC_ATAN])
  
    dnl Test whether atanf() exists. Assume that atanf(), if it exists, is
    dnl defined in the same library as atan().
    save_LIBS="$LIBS"
    LIBS="$LIBS $ATAN_LIBM"
    AC_CHECK_FUNCS([atanf])
    LIBS="$save_LIBS"
    if test $ac_cv_func_atanf = yes; then
      ATANF_LIBM="$ATAN_LIBM"
    else
      HAVE_ATANF=0
      ATANF_LIBM="$ATAN_LIBM"
    fi
    AC_SUBST([ATANF_LIBM])
  ])
  

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