[bpt/guile.git] / m4 / copysign.m4

# copysign.m4 serial 1
dnl Copyright (C) 2011-2013 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_COPYSIGN],
[
  AC_REQUIRE([gl_MATH_H_DEFAULTS])

  dnl Determine COPYSIGN_LIBM.
  gl_MATHFUNC([copysign], [double], [(double, double)])
  if test $gl_cv_func_copysign_no_libm = no \
     && test $gl_cv_func_copysign_in_libm = no; then
    HAVE_COPYSIGN=0
    COPYSIGN_LIBM=
  fi
  AC_SUBST([COPYSIGN_LIBM])
])
Commit	Line	Data
52414043 MW	1	# copysign.m4 serial 1
	2	dnl Copyright (C) 2011-2013 Free Software Foundation, Inc.
	3	dnl This file is free software; the Free Software Foundation
	4	dnl gives unlimited permission to copy and/or distribute it,
	5	dnl with or without modifications, as long as this notice is preserved.
	6
	7	AC_DEFUN([gl_FUNC_COPYSIGN],
	8	[
	9	AC_REQUIRE([gl_MATH_H_DEFAULTS])
	10
	11	dnl Determine COPYSIGN_LIBM.
	12	gl_MATHFUNC([copysign], [double], [(double, double)])
	13	if test $gl_cv_func_copysign_no_libm = no \
	14	&& test $gl_cv_func_copysign_in_libm = no; then
	15	HAVE_COPYSIGN=0
	16	COPYSIGN_LIBM=
	17	fi
	18	AC_SUBST([COPYSIGN_LIBM])
	19	])