-# roundl.m4 serial 5
-dnl Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+# roundl.m4 serial 7
+dnl Copyright (C) 2007, 2009-2010 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_CHECK_DECLS([roundl], , , [#include <math.h>])
if test "$ac_cv_have_decl_roundl" = yes; then
gl_CHECK_MATH_LIB([ROUNDL_LIBM], [x = roundl (x);])
+ if test "$ROUNDL_LIBM" = missing; then
+ REPLACE_ROUNDL=1
+ fi
+ else
+ HAVE_DECL_ROUNDL=0
fi
- if test "$ac_cv_have_decl_roundl" != yes || test "$ROUNDL_LIBM" = missing; then
- REPLACE_ROUNDL=1
+ if test $HAVE_DECL_ROUNDL = 0 || test $REPLACE_ROUNDL = 1; then
AC_LIBOBJ([roundl])
AC_CHECK_DECLS([ceill, floorl], , , [#include <math.h>])
if test "$ac_cv_have_decl_floorl" = yes \
if test "$FLOORL_LIBM" != '?' && test "$CEILL_LIBM" != '?'; then
AC_DEFINE([HAVE_FLOORL_AND_CEILL], [1],
[Define if the both the floorl() and ceill() functions exist.])
- ROUNDL_LIBM="$FLOORL_LIBM $CEILL_LIBM"
+ ROUNDL_LIBM=
+ dnl Append $FLOORL_LIBM to ROUNDL_LIBM, avoiding gratuitous duplicates.
+ case " $ROUNDL_LIBM " in
+ *" $FLOORL_LIBM "*) ;;
+ *) ROUNDL_LIBM="$ROUNDL_LIBM $FLOORL_LIBM" ;;
+ esac
+ dnl Append $CEILL_LIBM to ROUNDL_LIBM, avoiding gratuitous duplicates.
+ case " $ROUNDL_LIBM " in
+ *" $CEILL_LIBM "*) ;;
+ *) ROUNDL_LIBM="$ROUNDL_LIBM $CEILL_LIBM" ;;
+ esac
else
ROUNDL_LIBM=
fi