-# trunc.m4 serial 3
+# trunc.m4 serial 4
dnl Copyright (C) 2007, 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,
if test "$ac_cv_have_decl_trunc" = yes; then
dnl Test whether trunc() can be used without libm.
TRUNC_LIBM=?
- AC_TRY_LINK([
- #ifndef __NO_MATH_INLINES
- # define __NO_MATH_INLINES 1 /* for glibc */
- #endif
- #include <math.h>
- double x;],
- [x = trunc(x);],
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#ifndef __NO_MATH_INLINES
+ # define __NO_MATH_INLINES 1 /* for glibc */
+ #endif
+ #include <math.h>
+ double x;]],
+ [[x = trunc(x);]])],
[TRUNC_LIBM=])
if test "$TRUNC_LIBM" = "?"; then
save_LIBS="$LIBS"
LIBS="$LIBS -lm"
- AC_TRY_LINK([
- #ifndef __NO_MATH_INLINES
- # define __NO_MATH_INLINES 1 /* for glibc */
- #endif
- #include <math.h>
- double x;],
- [x = trunc(x);],
+ AC_LINK_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#ifndef __NO_MATH_INLINES
+ # define __NO_MATH_INLINES 1 /* for glibc */
+ #endif
+ #include <math.h>
+ double x;]],
+ [[x = trunc(x);]])],
[TRUNC_LIBM="-lm"])
LIBS="$save_LIBS"
fi