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# powf.m4
# serial 3
dnl Copyright (C) 2011-2025 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 file is offered as-is, without any warranty.

AC_DEFUN([gl_FUNC_POWF],
[
  AC_REQUIRE([gl_MATH_H_DEFAULTS])
  AC_REQUIRE([gl_FUNC_POW])

  dnl Persuade glibc <math.h> to declare powf().
  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])

  dnl Test whether powf() exists. Assume that powf(), if it exists, is
  dnl defined in the same library as pow().
  saved_LIBS="$LIBS"
  LIBS="$LIBS $POW_LIBM"
  AC_CHECK_FUNCS([powf])
  LIBS="$saved_LIBS"
  if test $ac_cv_func_powf = yes; then
    POWF_LIBM="$POW_LIBM"
  else
    HAVE_POWF=0
    POWF_LIBM="$POW_LIBM"
  fi
  AC_SUBST([POWF_LIBM])
])
kc3-lang/gnulib/m4/powf.m4

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m4/powf.m4
