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# logf.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_LOGF],
[
AC_REQUIRE([gl_MATH_H_DEFAULTS])
AC_REQUIRE([gl_FUNC_LOG])
dnl Test whether logf() exists. Assume that logf(), if it exists, is
dnl defined in the same library as log().
save_LIBS="$LIBS"
LIBS="$LIBS $LOG_LIBM"
AC_CHECK_FUNCS([logf])
LIBS="$save_LIBS"
if test $ac_cv_func_logf = yes; then
LOGF_LIBM="$LOG_LIBM"
else
HAVE_LOGF=0
LOGF_LIBM="$LOG_LIBM"
fi
AC_SUBST([LOGF_LIBM])
])
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