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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [aclocal/] [check-newlib.m4] - Rev 580

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dnl $Id: check-newlib.m4,v 1.2 2001-09-27 11:59:11 chris Exp $
 
AC_DEFUN(RTEMS_CHECK_NEWLIB,
[dnl
AC_REQUIRE([RTEMS_PROG_CC_FOR_TARGET])dnl
AC_REQUIRE([RTEMS_CANONICALIZE_TOOLS])dnl
AC_CACHE_CHECK([for newlib],
  rtems_cv_use_newlib,
  [
    rtems_save_CC=$CC
    CC=$CC_FOR_TARGET
 
dnl some versions of newlib provide not_required_by_rtems
    AC_TRY_LINK(
      [extern int not_required_by_rtems() ;],
      [not_required_by_rtems()],
      rtems_cv_use_newlib="yes")
 
dnl older versions of newlib provided rtems_provides_crt0
    if test -z "$rtems_cv_use_newlib"; then
      AC_TRY_LINK(
        [extern int rtems_provides_crt0 ;],
        [rtems_provides_crt0 = 0],
        rtems_cv_use_newlib="yes",
	rtems_cv_use_newlib="no")
    fi
  CC=$rtems_save_CC])
RTEMS_USE_NEWLIB="$rtems_cv_use_newlib"
AC_SUBST(RTEMS_USE_NEWLIB)
])
 
 

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